2003 Dodge RAM Standard Owners Manual

code or Diagnostic Trouble Code (DTC) in its memory circuit and sends an electronic message to the EMIC to turn on the airbag indicator. When the SIACM monitors a problem in any of the side curtain airbag system circuits or component, it stores a fault code or DTC in its memory circuit and sends an electronic message to the ACM, and the ACM sends an elec- tronic message to the EMIC to turn on the airbag the indicator. Proper supplemental restraint the Programmable Communications Interface (PCI) data bus, the elec- tronic message inputs to and outputs from the EMIC, the SIACM, or the ACM, as well as the retrieval or erasure of a DTC from the ACM, SIACM, or EMIC requires the use of a DRBIIIt scan tool. Refer to the appropriate diagnostic information.

of system components,

testing

See the owner’s manual in the vehicle glove box for more information on the features, use and operation of all of the factory-installed passive restraints.

WARNING

WARNINGS - RESTRAINT SYSTEM

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

RESTRAINTS

8O - 6
RESTRAINTS (Continued)

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

WARNING: AN AIRBAG INFLATOR UNIT MAY CON- TAIN SODIUM AZIDE AND POTASSIUM NITRATE. THESE MATERIALS ARE POISONOUS AND EXTREMELY FLAMMABLE. CONTACT WITH ACID, WATER, OR HEAVY METALS MAY PRODUCE HARM- FUL AND IRRITATING GASES (SODIUM HYDROXIDE IS FORMED IN THE PRESENCE OF MOISTURE) OR COMBUSTIBLE COMPOUNDS. AN AIRBAG INFLA- TOR UNIT MAY ALSO CONTAIN A GAS CANISTER PRESSURIZED TO OVER 2500 PSI. DO NOT ATTEMPT TO DISMANTLE AN AIRBAG UNIT OR TAMPER WITH ITS INFLATOR. DO NOT PUNCTURE, INCINERATE, OR BRING INTO CONTACT WITH ELECTRICITY. DO NOT STORE AT TEMPERATURES EXCEEDING 93° C (200° F).

WARNING: WHEN HANDLING A SEAT BELT TEN- SIONER RETRACTOR, PROPER CARE SHOULD BE EXERCISED TO KEEP FINGERS OUT FROM UNDER THE RETRACTOR COVER AND AWAY FROM THE SEAT BELT WEBBING WHERE IT EXITS FROM THE RETRACTOR COVER.

WARNING: REPLACE ALL RESTRAINT SYSTEM COMPONENTS ONLY WITH PARTS SPECIFIED IN THE DAIMLERCHRYSLER MOPAR PARTS CATA- LOG. SUBSTITUTE PARTS MAY APPEAR INTER- CHANGEABLE, BUT INTERNAL DIFFERENCES MAY RESULT IN INFERIOR OCCUPANT PROTECTION.

WARNING: THE FASTENERS, SCREWS, AND BOLTS ORIGINALLY USED FOR THE RESTRAINT SYSTEM COMPONENTS HAVE SPECIAL COATINGS AND ARE SPECIFICALLY DESIGNED FOR THE RESTRAINT SYSTEM. THEY MUST NEVER BE REPLACED WITH ANY SUBSTITUTES. ANY TIME A NEW FASTENER IS NEEDED, REPLACE IT WITH

DR

THE CORRECT FASTENERS PROVIDED IN THE SERVICE PACKAGE OR SPECIFIED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

WARNING: WHEN A STEERING COLUMN HAS AN AIRBAG UNIT ATTACHED, NEVER PLACE THE COL- UMN ON THE FLOOR OR ANY OTHER SURFACE WITH THE STEERING WHEEL OR AIRBAG UNIT FACE DOWN.

DIAGNOSIS AND TESTING - SUPPLEMENTAL RESTRAINT SYSTEM

system components,

Proper diagnosis and testing of the supplemental restraint the Programmable Communications Interface (PCI) data bus, the data bus electronic message inputs to and outputs from the ElectroMechanical Instrument Cluster (EMIC), the Airbag Control Module (ACM), or the Side Impact Airbag Control Module (SIACM) as well as the retrieval or erasure of a Diagnostic Trouble Code (DTC) from the ACM or SIACM requires the use of a DRBIIIt scan tool. Refer to the appropriate diagnos- tic information.

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

STANDARD PROCEDURE

STANDARD PROCEDURE - HANDLING NON-DEPLOYED SUPPLEMENTAL RESTRAINTS At no time should any source of electricity be per- mitted near the inflator on the back of a non-de- ployed airbag or seat belt tensioner. When carrying a non-deployed airbag, the trim cover or airbag cushion side of the unit should be pointed away from the body to minimize injury in the event of an accidental deployment. If the airbag unit is placed on a bench or any other surface, the trim cover or airbag cushion side of the unit should be face up to minimize move-

RESTRAINTS

8O - 7

age. Because the ACM and SIACM each contain impact sensors that are used by the supplemental restraint system to monitor or confirm the direction and severity of a vehicle impact, improper orientation or insecure fastening of these components may cause airbags not to deploy when required, or to deploy when not required. All other vehicle components should be closely inspected following any supplemen- tal restraint deployment, but are to be replaced only as required by the extent of the visible damage incurred.

CLEANUP PROCEDURE

Following a supplemental restraint deployment, the vehicle interior will contain a powdery residue. This residue consists primarily of harmless particu- late by-products of the small pyrotechnic charge that initiates the propellant used to deploy a supplemen- tal restraint. However, this residue may also contain traces of sodium hydroxide powder, a chemical by-product of the propellant material that is used to generate the inert gas that inflates the airbag. Since sodium hydroxide powder can irritate the skin, eyes, nose, or throat, be certain to wear safety glasses, rubber gloves, and a long-sleeved shirt during cleanup (Fig. 3).

DR RESTRAINTS (Continued)

ment in the event of an accidental deployment. When handling a non-deployed seat belt tensioner, take proper care to keep fingers out from under the retractor cover and away from the seat belt webbing where it exits from the retractor cover. In addition, the supplemental restraint system should be dis- armed whenever any steering wheel, steering col- umn, seat belt tensioner, driver airbag, passenger airbag, side curtain airbag, or instrument panel com- ponents require diagnosis or service. Failure to observe this warning could result in accidental air- bag deployment and possible personal injury.

All damaged, faulty or non-deployed airbags and seat belt tensioners which are replaced on vehicles are to be handled and disposed of properly. If an air- bag or seat belt tensioner unit is faulty or damaged and non-deployed, refer to the Hazardous Substance Control System for proper disposal. Dispose of all non-deployed and deployed airbags and seat belt ten- sioners in a manner consistent with state, provincial, local and federal regulations.

SUPPLEMENTAL RESTRAINT STORAGE

Airbags and seat belt tensioners must be stored in their original, special container until they are used for service. Also, they must be stored in a clean, dry environment; away from sources of extreme heat, sparks, and high electrical energy. Always place or store any airbag on a surface with its trim cover or airbag cushion side facing up, to minimize movement in case of an accidental deployment.

STANDARD PROCEDURE - SERVICE AFTER A SUPPLEMENTAL RESTRAINT DEPLOYMENT

If

Any vehicle which is to be returned to use follow- ing a supplemental restraint deployment, must have the deployed restraints replaced. In addition, if the driver airbag has been deployed, the clockspring must be replaced. the passenger airbag is deployed, the passenger airbag door must be replaced. The seat belt tensioners are deployed by the same signal that deploys the driver and passen- ger airbags and must also be replaced if either front airbag has been deployed. If a side curtain airbag has been deployed, the complete airbag unit, the headliner, as well as the upper A, B, and C-pillar trim must be replaced. These components are not intended for reuse and will be damaged or weakened as a result of a supplemental restraint deployment, which may or may not be obvious during a visual inspection.

It is also critical that the mounting surfaces and/or mounting brackets for the Airbag Control Module (ACM) and Side Impact Airbag Control Module (SIACM) be closely inspected and restored to their original conditions following any vehicle impact dam-

Fig.3WearSafetyGlassesandRubberGloves-

Typical

WARNING: IF YOU EXPERIENCE SKIN IRRITATION DURING CLEANUP, RUN COOL WATER OVER THE AFFECTED AREA. ALSO, IF YOU EXPERIENCE IRRITATION OF THE NOSE OR THROAT, EXIT THE VEHICLE FOR FRESH AIR UNTIL THE IRRITATION CEASES. IF IRRITATION CONTINUES, SEE A PHYSI- CIAN.

(1) Begin the cleanup by using a vacuum cleaner to remove any residual powder from the vehicle inte- rior. Clean from outside the vehicle and work your

DR

PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

(1) During the following test, the battery negative cable remains disconnected and isolated, as it was during the supplemental restraint system component removal and installation procedures.

(2) Be certain that the DRBIIIt scan tool contains the latest version of the proper DRBIIIt software. Connect the DRBIIIt to the 16-way Data Link Con- nector (DLC). The DLC is located on the driver side lower edge of the instrument panel, outboard of the steering column (Fig. 5).

RESTRAINTS

8O - 8
RESTRAINTS (Continued)

way inside, so that you avoid kneeling or sitting on a non-cleaned area.

(2) Be certain to vacuum the heater and air condi- tioning outlets as well (Fig. 4). Run the heater and air conditioner blower on the lowest speed setting and vacuum any powder expelled from the outlets.

Fig.4VacuumHeaterandA/COutlets-Typical

CAUTION: All damaged, faulty, or non-deployed supplemental restraints which are replaced on vehi- cles are to be handled and disposed of properly. If an airbag unit or seat belt tensioner unit is faulty or damaged and non-deployed, refer to the Hazardous Substance Control System for proper disposal. Be certain to dispose of all non-deployed and deployed supplemental restraints in a manner consistent with state, provincial, local and federal regulations.

remove

(3) Next,

supplemental restraints from the vehicle. Refer to the appropriate service removal procedures.

deployed

the

(4) You may need to vacuum the interior of the

vehicle a second time to recover all of the powder.

STANDARD PROCEDURE - VERIFICATION TEST The following procedure should be performed using a DRBIIIt scan tool to verify proper supplemental restraint system operation following the service or replacement of any supplemental restraint system component.

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE

Fig.516-WayDataLinkConnector-Typical

1 - 16–WAY DATA LINK CONNECTOR 2 - BOTTOM OF INSTRUMENT PANEL

(3) Turn the ignition switch to the On position and

exit the vehicle with the DRBIIIt scan tool.

(4) Check to be certain that nobody is in the vehi-

cle, then reconnect the battery negative cable.

(5) Using the DRBIIIt, read and record the active

(current) Diagnostic Trouble Code (DTC) data.

(6) Next, use the DRBIIIt to read and record any

stored (historical) DTC data.

(7) If any DTC is found in Step 5 or Step 6, refer

to the appropriate diagnostic information.

(8) Use the DRBIIIt to erase the stored DTC data. If any problems remain, the stored DTC data will not erase. Refer to the appropriate diagnostic informa- tion to diagnose any stored DTC that will not erase.

DR RESTRAINTS (Continued)

If the stored DTC information is successfully erased, go to Step 9.

(9) Turn the ignition switch to the Off position for about fifteen seconds, and then back to the On posi- tion. Observe the airbag indicator in the instrument cluster. It should illuminate for six to eight seconds, and then go out. This indicates that the supplemen- tal restraint system is functioning normally and that the repairs are complete. If the airbag indicator fails to light, or lights and stays on, there is still an active supplemental restraint system fault or malfunction. Refer to the appropriate diagnostic information to diagnose the problem.

ACM COVER REMOVAL

The Airbag Control Module (ACM) cover is used only on models with an automatic transmission. Mod- els with a manual transmission require that the floor console be removed to access the ACM for service. (Refer to 23 - BODY/INTERIOR/FLOOR CONSOLE - REMOVAL).

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

(1) Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.

(2) Using a trim stick or another suitable wide flat-bladed tool, gently pry each side of the ACM cover away from the instrument panel at each side of the center bracket on the floor panel transmission tunnel far enough to disengage the two snap clip retainers from the instrument panel receptacles (Fig. 6).

(3) Remove the ACM cover from the instrument

panel.

RESTRAINTS

8O - 9

Fig.6ACMCoverRemove/Install

1 - INSTRUMENT PANEL RECEPTACLE (2) 2 - ACM COVER

INSTALLATION

The Airbag Control Module (ACM) cover is used only on models with an automatic transmission. Mod- els with a manual transmission require that the floor console be reinstalled following ACM service. (Refer to 23 - BODY/INTERIOR/FLOOR CONSOLE - INSTALLATION).

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

(1) Position the ACM cover to the instrument

panel (Fig. 6).

(2) Align the snap clip retainer on each side of the ACM cover with the instrument panel receptacle at each side of the center bracket on the floor panel transmission tunnel.

(3) Using hand pressure, press firmly and evenly on the outside of the ACM cover over each snap clip retainer location until each retainer is fully engaged in its instrument panel receptacle.

(4) Reconnect the battery negative cable.

8O - 10

RESTRAINTS

DR

AIRBAG CONTROL MODULE DESCRIPTION

are only serviced as a unit with the ACM. The ACM cannot be repaired or adjusted and, if damaged or faulty, it must be replaced.

OPERATION

The microprocessor in the Airbag Control Module (ACM) contains the front supplemental restraint sys- tem logic circuits and controls all of the front supple- mental restraint system components. The ACM uses On-Board Diagnostics (OBD) and can communicate with other electronic modules in the vehicle as well as with the DRBIIIt scan tool using the Programma- ble Communications Interface (PCI) data bus net- work. This method of communication is used for control of the airbag indicator in the ElectroMechani- cal Instrument Cluster (EMIC) and for supplemental restraint system diagnosis and testing through the 16-way data link connector located on the driver side lower edge of the instrument panel. (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER/AIRBAG INDICATOR - OPERATION).

The ACM microprocessor continuously monitors all of the front supplemental restraint system electrical circuits to determine the system readiness. If the ACM detects a monitored system fault, it sets an active and stored Diagnostic Trouble Code (DTC) and sends electronic messages to the EMIC over the PCI data bus to turn on the airbag indicator. An active fault only remains for the duration of the fault, or in some cases, the duration of the current ignition switch cycle, while a stored fault causes a DTC to be stored in memory by the ACM. For some DTCs, if a fault does not recur for a number of ignition cycles, the ACM will automatically erase the stored DTC. For other internal faults, the stored DTC is latched forever.

In standard cab models, the ACM also monitors a resistor multiplexed input from the passenger airbag on/off switch and provides a control output for the Off indicator in the switch through a passenger air- bag indicator driver circuit. If the passenger airbag on/off switch is set to the Off position, the ACM turns on the passenger airbag on/off switch Off indicator and will internally disable the passenger airbag from being deployed if an impact is detected that is suffi- cient for an airbag deployment. The ACM also turns on the on/off switch Off indicator for about seven sec- onds each time the ignition switch is turned to the On position as a bulb test. Following the bulb test, the ACM controls the status of the Off indicator based upon the resistance of the input from the on/off switch. The ACM will also set and/or store a DTC for faults it detects in the passenger airbag on/off switch circuits, and will turn on the airbag indicator in the EMIC if a fault has been detected.

Fig.7AirbagControlModule

1 - AIRBAG CONTROL MODULE 2 - ORIENTATION ARROW 3 - CONNECTOR RECEPTACLE

The Airbag Control Module (ACM) is secured with four screws to the top mounting surface of a stamped steel bracket welded onto the top of the floor panel transmission tunnel forward of the instrument panel center support bracket and below the instrument panel center stack in the passenger compartment of the vehicle (Fig. 7). Concealed within a hollow in the center of the die cast aluminum ACM housing is the electronic circuitry of the ACM which includes a microprocessor, an electronic impact sensor, an elec- tromechanical safing sensor, and an energy storage capacitor. A stamped metal cover plate is secured to the bottom of the ACM housing with four screws to enclose and protect the internal electronic circuitry and components.

The ACM housing has integral mounting flanges on each side. Two of the mounting flanges, one on each side, have an integral locating pin on their lower surface. The left flanges have round mounting holes, while the flanges on the right side have slotted mounting holes. An arrow cast into the top of the ACM housing near the rear provides a visual verifi- cation of the proper orientation of the unit, and should always be pointed toward the front of the vehicle. A molded plastic electrical connector recepta- cle containing twenty-three terminal pins exits the rearward facing side of the ACM housing. These ter- minal pins connect the ACM to the vehicle electrical system through a dedicated take out and connector of the instrument panel wire harness.

The impact sensor and safing sensor internal to the ACM are calibrated for the specific vehicle, and

DR AIRBAG CONTROL MODULE (Continued)

RESTRAINTS

8O - 11

On models equipped with optional side curtain air- bags, the ACM communicates with both the left and right Side Impact Airbag Control Modules (SIACM) over the PCI data bus. The SIACM notifies the ACM when it has detected a monitored system fault and stored a DTC in memory for its respective side cur- tain airbag system, and the ACM sets a DTC and controls the airbag indicator operation accordingly.

The ACM receives battery current through two cir- cuits; a fused ignition switch output (run) circuit through a fuse in the Integrated Power Module (IPM), and a fused ignition switch output (run-start) circuit through a second fuse in the IPM. The ACM receives ground through a ground circuit and take out of the instrument panel wire harness. This take out has a single eyelet terminal connector that is secured by a ground screw to the instrument panel support structure. These connections allow the ACM to be operational whenever the ignition switch is in the Start or On positions. The ACM also contains an energy-storage capacitor. When the ignition switch is in the Start or On positions, this capacitor is contin- ually being charged with enough electrical energy to deploy the front supplemental restraint components for up to one second following a battery disconnect or failure. The purpose of the capacitor is to provide backup supplemental restraint system protection in case there is a loss of battery current supply to the ACM during an impact.

Two sensors are contained within the ACM; an electronic impact sensor, and a safing sensor. The electronic impact sensor is an accelerometer that senses the rate of vehicle deceleration, which pro- vides verification of the direction and severity of an impact. The safing sensor is an electromechanical sensor within the ACM that provides an additional logic input to the ACM microprocessor. The safing sensor is a normally open switch that is used to ver- ify the need for a front supplemental restraint deployment by detecting impact energy of a lesser magnitude than that of the electronic impact sensor, and must be closed in order for the front airbags or seat belt tensioners to deploy. A pre-programmed decision algorithm in the ACM microprocessor deter- mines when the deceleration rate as signaled by the impact sensor and the safing sensor indicate an impact that is severe enough to require front supple- mental restraint system protection and, based upon the status of the passenger airbag on/off switch input and the severity of the monitored impact, determines what combination of seat belt tensioner and front air- bag deployment is required for each front seating position. When the programmed conditions are met, the ACM sends the proper electrical signals to deploy the seat belt tensioners and dual front airbags.

The hard wired inputs and outputs for the ACM may be diagnosed and tested using conventional diagnostic tools and procedures. However, conven- tional diagnostic methods will not prove conclusive in the diagnosis of the ACM, the PCI data bus network, or the electronic message inputs to and outputs from the ACM. The most reliable, efficient, and accurate means to diagnose the ACM, the PCI data bus net- work, and the electronic message inputs to and out- puts from the ACM requires the use of a DRBIIIt scan tool. Refer to the appropriate diagnostic infor- mation.

REMOVAL

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

WARNING: THE AIRBAG CONTROL MODULE CON- TAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE FRONT SUPPLE- MENTAL RESTRAINTS. NEVER STRIKE OR DROP THE AIRBAG CONTROL MODULE, AS IT CAN DAM- AGE THE IMPACT SENSOR OR AFFECT ITS CALI- BRATION. IF AN AIRBAG CONTROL MODULE IS ACCIDENTALLY DROPPED DURING SERVICE, THE MODULE MUST BE SCRAPPED AND REPLACED WITH A NEW UNIT. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN ACCIDENTAL, INCOMPLETE, OR IMPROPER FRONT SUPPLEMEN- TAL RESTRAINT DEPLOYMENT AND POSSIBLE OCCUPANT INJURIES.

(1) Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.

(2) On models with a manual

transmission, remove the floor console from the top of the floor panel transmission tunnel. (Refer to 23 - BODY/IN- TERIOR/FLOOR CONSOLE - REMOVAL).

(3) On models with an automatic transmission, remove the ACM cover from the instrument panel.

RESTRAINTS

8O - 12
AIRBAG CONTROL MODULE (Continued)

DR

(Refer COVER - REMOVAL).

to 8 - ELECTRICAL/RESTRAINTS/ACM

(4) Reach through the rearward facing opening below the instrument panel center stack support bracket on the top of the floor panel transmission tunnel to access and disconnect the instrument panel wire harness connector for the Airbag Control Mod- ule (ACM) from the ACM connector receptacle located on the rearward facing side of the module (Fig. 8). To disconnect the instrument panel wire harness con- nector from the ACM:

(a) Slide the red Connector Position Assurance (CPA) lock on the top of the connector toward the side of the connector.

(b) Depress the connector latch tab and pull the connector straight away from the ACM connector receptacle.

Fig.8AirbagControlModuleRemove/Install

1 - WIRE HARNESS CONNECTOR 2 - AIRBAG CONTROL MODULE 3 - SCREW (4) 4 - FLOOR PANEL TRANSMISSION TUNNEL

(5) From the right side of the floor panel transmis- sion tunnel, loosen each of the two screws that secure the right side of the ACM to the bracket on the floor panel transmission tunnel about 7 millimeters (0.25
inch).

(6) From the left side of the floor panel transmis- sion tunnel, remove the two screws that secure the left side of the ACM to the bracket on the floor panel transmission tunnel.

(7) Still working from the left side of the floor panel transmission tunnel, lift the ACM upward far enough to disengage the locating pins on the bottom of the ACM mounting flanges from the locating holes in the mounting bracket, then slide the ACM toward the left far enough to disengage the slotted holes in the right ACM mounting flanges from under the heads of the two previously loosened right mounting screws.

(8) Remove the ACM from the left side of the floor

panel transmission tunnel.

INSTALLATION

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

WARNING: THE AIRBAG CONTROL MODULE CON- TAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE FRONT SUPPLE- MENTAL RESTRAINTS. NEVER STRIKE OR DROP THE AIRBAG CONTROL MODULE, AS IT CAN DAM- AGE THE IMPACT SENSOR OR AFFECT ITS CALI- BRATION. IF AN AIRBAG CONTROL MODULE IS ACCIDENTALLY DROPPED DURING SERVICE, THE MODULE MUST BE SCRAPPED AND REPLACED WITH A NEW UNIT. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN ACCIDENTAL, INCOMPLETE, OR IMPROPER FRONT SUPPLEMEN- TAL RESTRAINT DEPLOYMENT AND POSSIBLE OCCUPANT INJURIES.

(1) Position the Airbag Control Module (ACM) to the left side of the floor panel transmission tunnel near the ACM bracket (Fig. 8). When the ACM is cor- rectly positioned, the arrow on the ACM housing will be pointed forward in the vehicle.

(2) From the left side of the floor panel transmis- sion tunnel, slide the ACM toward the right far enough to engage the slotted holes in the right ACM mounting flanges under the heads of the two previ- ously loosened right mounting screws, then engage

DR AIRBAG CONTROL MODULE (Continued)

RESTRAINTS

8O - 13

the locating pins on the bottom of the ACM mounting flanges into the locating holes in the bracket.

(3) Still working from the left side of the floor panel transmission tunnel, install and tighten the two screws that secure the left ACM mounting flanges to the bracket that is welded onto the floor panel transmission tunnel. Tighten the screws to 14
N·m (10 ft. lbs.).

(4) From the right side of the floor panel transmis- sion tunnel, tighten each of the two screws that secure the right side of the ACM to the bracket on the floor panel transmission tunnel. Tighten the screws to 14 N·m (10 ft. lbs.).

(5) Reach through the rearward facing opening below the instrument panel center stack support bracket on the top of the floor panel transmission tunnel to access and reconnect the instrument panel wire harness connector for the ACM to the ACM con- nector receptacle located on the rearward facing side of the module. Be certain that the latch and the red Connector Position Assurance (CPA) lock on the con- nector are each fully engaged.

(6) On models with an automatic transmission, reinstall the ACM cover onto the instrument panel. (Refer to 8 - ELECTRICAL/RESTRAINTS/ACM COVER - INSTALLATION).

(7) On models with a manual transmission, rein- stall the floor console onto the top of the floor panel transmission tunnel. (Refer to 23 - BODY/INTERI- OR/FLOOR CONSOLE - INSTALLATION).

(8) Do not reconnect the battery negative cable at this time. The supplemental restraint system verifi- cation test procedure should be performed following service of any supplemental restraint system compo- nent. (Refer to 8 - ELECTRICAL/RESTRAINTS - STANDARD PROCEDURE - VERIFICATION TEST).

AUTOMATIC LOCKING RETRACTOR DESCRIPTION

Fig.9AutomaticLockingRetractor

1 - TENSIONER HOUSING OR CHAMBER 2 - GAS GENERATOR 3 - TENSIONER PIGTAIL WIRE 4 - SPOOL 5 - TENSION REDUCER (DRIVER SIDE ON STANDARD CAB ONLY) 6 - REDUCER CONNECTOR RECEPTACLE 7 - RETRACTOR LOCKING MECHANISM COVER

The seat belt retractors used in all seating posi- tions include an inertia-type, emergency locking mechanism as standard equipment (Fig. 9). However, the retractor locking mechanism for the passenger side front seating position is mechanically switchable from an emergency locking retractor to an automatic locking retractor. The primary function of this fea- ture is to securely accommodate a child seat in the passenger side front seating position of the vehicle without the need for a self-cinching seat belt tip half latch plate unit or another supplemental device that would be required to prevent the seat belt webbing from unwinding freely from the retractor spool of an inertia-type emergency locking retractor mechanism. The automatic locking mechanism is integral to the passenger side front seat belt and retractor unit and is concealed beneath a molded plastic cover located on the same side of the retractor spool as the seat belt tensioner housing. The retractor is secured to the inner B-pillar on the right side of the vehicle and is concealed beneath the molded plastic inner B-pil- lar trim. The automatic locking mechanism cannot be adjusted or repaired and, if faulty or damaged, the entire passenger side front seat belt and retractor unit must be replaced.

DR

The retractor is returned to standard emergency locking mode by unbuckling the combination lap and shoulder belt buckle and allowing the belt webbing to be almost fully retracted onto the retractor spool. The emergency locking mode is confirmed by the absence of the audible clicking or ratcheting sound as the belt webbing retracts. This mode will allow the belt to unwind from and wind onto the retractor spool freely unless and until a predetermined inertia load is sensed, or until the retractor is again switched to the automatic locking mode.

RESTRAINTS

8O - 14
AUTOMATIC LOCKING RETRACTOR (Continued) OPERATION

The automatic locking mode of the retractor is engaged and the retractor is switched from operating as a standard inertia-type emergency locking retrac- tor by first buckling the combination lap and shoul- der belt buckle. Then grasp the shoulder belt and pull all of the webbing out of the retractor. Once all of the belt webbing is extracted from the spool, the retractor will automatically become engaged in the pre-locked automatic locking mode and will make an audible clicking or ratcheting sound as the shoulder belt is allowed to retract to confirm that the auto- matic locking mode is now engaged. Once the auto- matic locking mode is engaged, the retractor will remain locked and the belt will remain tight around whatever it is restraining.

CHILD RESTRAINT ANCHOR

DESCRIPTION

1 - LOWER ANCHOR (PROVIDED FOR OUTBOARD SEATING POSITION ONLY)

2 - TETHER ANCHOR (PROVIDED FOR CENTER AND OUTBOARD SEATING POSITIONS)

Fig.10ChildRestraintAnchorLocation-StandardCab

DR CHILD RESTRAINT ANCHOR (Continued)

RESTRAINTS

8O - 15

1 - LOWER ANCHOR (PROVIDED FOR REAR OUTBOARD SEATING POSITIONS ONLY)

2 - TETHER ANCHOR (PROVIDED FOR REAR CENTER AND OUTBOARD SEATING POSITIONS)

Fig.11ChildRestraintAnchorLocation-QuadCab

This model is equipped with a Lower Anchors and Tether for CHildren, or LATCH child restraint anchorage system (Fig. 10) or (Fig. 11). The LATCH system provides for the installation of suitable child restraints in certain seating positions without using the standard equipment seat belt provided for that seating position. Standard cab models are equipped with a fixed-position child restraint upper tether anchor for the front center and outboard seating posi- tions, and child restraint lower anchors for the front outboard seating position. Quad cab models are equipped with a fixed-position child restraint upper tether anchor strap for the rear center and both rear outboard seating positions, and child restraint lower anchors for both rear outboard seating positions. All front seat child restraint anchors are deleted on quad cab models.

The two upper tether anchors for standard cab models are integral to the upper cab back panel rein- forcement and are concealed behind individual trim cover and bezel units that are integral to the cab back trim panel (Fig. 12). These upper tether anchors cannot be adjusted or repaired and, if faulty or dam- aged, they must be replaced as a unit with the upper cab back panel reinforcement. The upper tether anchor trim covers and bezels are serviced as a unit with the cab back trim panel.

The three upper tether anchor straps for quad cab models are secured to the upper cab back panel rein- forcement with screws (Fig. 13). These anchor straps are concealed behind the upright rear seat back. The

Fig.12ChildTetherAnchor-StandardCab

1 - COVER & BEZEL (2) 2 - CAB BACK TRIM PANEL 3 - ANCHOR (2)

upper tether anchor straps are available for individ- ual service replacement.

The lower anchors for all models are integral to their respective front or rear seat cushion frame (Fig. 14) or (Fig. 15). Round markers with an imprinted child seat icon on the standard cab front seat back trim cover helps identify the anchor locations for that application because they may be otherwise difficult to see with the seat back in the upright position. These lower anchors are each constructed from round steel

RESTRAINTS

8O - 16
CHILD RESTRAINT ANCHOR (Continued)

DR

Fig.13ChildTetherStrap-QuadCab

1 - TETHER STRAP (3) 2 - CAB BACK PANEL 3 - SCREW (3)

is formed into a U-shape,

bar stock that then securely welded at each end to the seat cushion frame. They are each accessed from the front of their respective seats, at each side where the seat back meets the seat cushion. These lower anchors cannot be adjusted or repaired and, if faulty or damaged, they must be replaced as a unit with the seat cush- ion frame. On quad cab models, if the lower anchors have been bent or broken as a result of a vehicle col- lision, the latch for the affected rear seat cushion frame unit must also be replaced.

Fig.15ChildRestraintLowerAnchor-QuadCab

RearSeat

1 - REAR SEAT BACK 2 - LOWER ANCHOR (2 PER OUTBOARD REAR SEATING POSITION) 3 - REAR SEAT CUSHION

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

Fig.14ChildRestraintLowerAnchor-Standard

CabFrontSeat

1 - FRONT SEAT BACK 2 - LOWER ANCHOR (2) - PASSENGER SIDE OUTBOARD SEATING POSITION ONLY 3 - LOWER ANCHOR MARKER (2) 4 - FRONT SEAT CUSHION

OPERATION

See the owner’s manual in the vehicle glove box for more information on the proper use of all of the fac- tory-installed child restraint anchors.

REMOVAL

The following procedure applies only to the rear seat upper child tether straps used on quad cab mod- els. The child restraint anchors used in other models and locations are integral to other components and cannot be serviced separately.

DR CHILD RESTRAINT ANCHOR (Continued)

RESTRAINTS

8O - 17

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) Remove the rear seat from the vehicle. (Refer

to 23 - BODY/SEATS/SEAT - REAR - REMOVAL).

(2) Remove the screw that secures the child tether strap to the upper cab back panel reinforcement (Fig. 16).

(3) Remove the child tether strap from the upper

cab back panel reinforcement.

INSTALLATION

The following procedure applies only to the rear seat upper child tether straps used on quad cab mod- els. The child restraint anchors used in other models and locations are integral to other components and cannot be serviced separately.

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN.

IS CUT,

THAT

Fig.16ChildTetherStrap-QuadCab

1 - TETHER STRAP (3) 2 - CAB BACK PANEL 3 - SCREW (3)

STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) Position the child tether strap onto the upper

cab back panel reinforcement (Fig. 16).

(2) Install and tighten the screw that secures the child tether strap to the upper cab back panel rein- forcement. Tighten the screw to 14 N·m (10 ft. lbs.). (3) Reinstall the rear seat into the vehicle. (Refer to 23 - BODY/SEATS/SEAT - REAR - INSTALLA- TION).

8O - 18

RESTRAINTS

CLOCKSPRING DESCRIPTION

DR

Fig.17Clockspring

1 - PIGTAIL WIRE 2 - LOCATING TAB 3 - LOCKING PIN 4 - MOUNTING TAB (2) 5 - UPPER CONNECTOR RECEPTACLE (2) 6 - LABEL 7 - ENGAGEMENT DOWEL & BOOT 8 - CASE 9 - CENTERING ARROWS 10 - ROTOR

The clockspring assembly is secured with two screws onto the multi-function switch mounting housing near the top of the steering column behind the steering wheel (Fig. 17). The clockspring consists of a flat, round molded plastic case with a stubby tail that hangs below the steering column (Fig. 18). The tail contains two connector receptacles that face toward the instrument panel. Within the plastic case is a spool-like molded plastic rotor with a large exposed hub. The upper surface of the rotor hub has a large center hole, two large flats, an engagement dowel with a yellow rubber boot, a short pigtail wire with connector, and two connector receptacles that face toward the steering wheel.

The lower surface of the rotor hub has a molded plastic turn signal cancel cam with two lobes that is keyed to the rotor and is secured there with four integral snap features. Within the plastic case and wound around the rotor spool is a long ribbon-like tape that consists of several thin copper wire leads sandwiched between two thin plastic membranes. The outer end of the tape terminates at the connector receptacles that face the instrument panel, while the inner end of the tape terminates at the pigtail wire and connector receptacles on the hub of the clock- spring rotor that face the steering wheel.

Fig.18TurnSignalCancelCam

1 - LOCKING PIN 2 - CLOCKSPRING CASE 3 - CANCEL CAM 4 - LOWER CONNECTOR RECEPTACLE (2)

Service replacement clocksprings are shipped pre- centered and with a molded plastic locking pin that snaps into a receptacle on the rotor and is engaged between two tabs on the upper surface of the rotor case. The locking pin secures the centered clock- spring rotor to the clockspring case during shipment, but the locking pin must be removed from the clock- spring after it is installed on the steering column. (Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCK- SPRING - STANDARD PROCEDURE - CLOCK- SPRING CENTERING).

The clockspring cannot be repaired. If the clock- spring is faulty, damaged, or if the driver airbag has been deployed, the clockspring must be replaced.

OPERATION

The clockspring is a mechanical electrical circuit component that is used to provide continuous electri- cal continuity between the fixed instrument panel wire harness and the electrical components mounted on or in the rotating steering wheel. On this model the rotating electrical components include the driver airbag, the horn switch, the speed control switches, and the remote radio switches, if the vehicle is so equipped. The clockspring case is positioned and secured to the multi-function switch mounting hous- ing near the top of the steering column. The connec- tor receptacles on the tail of the fixed clockspring case connect the clockspring to the vehicle electrical system through two take outs with connectors from the instrument panel wire harness.

The clockspring rotor is movable and is keyed by an engagement dowel that is molded onto the rotor hub between two fins that are cast into the lower surface of the steering wheel armature. A yellow rub-

DR CLOCKSPRING (Continued)

ber boot is installed over the engagement dowel to eliminate contact noise between the dowel and the steering wheel. The two lobes on the turn signal can- cel cam on the lower surface of the clockspring rotor hub contact a turn signal cancel actuator of the multi-function switch to provide automatic turn sig- nal cancellation. The yellow sleeved pigtail wires on the upper surface of the clockspring rotor connect the clockspring to the driver airbag, while a steering wheel wire harness connects the two connector recep- tacles on the upper surface of the clockspring rotor to the horn switch feed pigtail wire connector and, if the vehicle is so equipped, to the optional speed con- trol and remote radio switches on the steering wheel. Like the clockspring in a timepiece, the clockspring tape has travel limits and can be damaged by being wound too tightly during full stop-to-stop steering wheel rotation. To prevent this from occurring, the clockspring is centered when it is installed on the steering column. Centering the clockspring indexes the clockspring tape to the movable steering compo- nents so that the tape can operate within its designed travel limits. However, if the clockspring is removed from the steering column or if the steering shaft is disconnected from the steering gear, the clockspring spool can change position relative to the movable steering components. The clockspring must be re-centered following completion of this service or the tape may be damaged.

Service replacement clocksprings are shipped pre- centered and with a plastic locking pin installed. This locking pin should not be disengaged until the clockspring has been installed on the steering col- umn. If the locking pin is removed or damaged before the clockspring is installed on a steering column, the clockspring centering procedure must be performed. (Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCK- SPRING - STANDARD PROCEDURE - CLOCK- SPRING CENTERING).

STANDARD PROCEDURE - CLOCKSPRING CENTERING

The clockspring is designed to wind and unwind when the steering wheel is rotated, but is only designed to rotate the same number of turns (about five complete rotations) as the steering wheel can be turned from stop to stop. Centering the clockspring indexes the clockspring tape to other steering compo- nents so that it can operate within its designed travel limits. The rotor of a centered clockspring can be rotated two and one-half turns in either direction from the centered position, without damaging the clockspring tape.

However, if the clockspring is removed for service or if the steering column is disconnected from the steering gear, the clockspring tape can change posi-

RESTRAINTS

8O - 19

replacement

tion relative to the other steering components. The clockspring must then be re-centered following com- pletion of such service or the clockspring tape may be damaged. Service clocksprings are shipped pre-centered, with a plastic locking pin installed (Fig. 19). This locking pin should not be removed until the clockspring has been installed on the steering column. If the locking pin is removed before the clockspring is installed on a steering col- umn, the clockspring centering procedure must be performed.

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

Fig.19ClockspringandMulti-FunctionSwitch

1 - CLOCKSPRING 2 - LOCATING PIN 3 - SCREW (2) 4 - LOCKING PIN 5 - ENGAGEMENT DOWEL BOOT

RESTRAINTS

8O - 20
CLOCKSPRING (Continued)

NOTE: Before starting this procedure, be certain to turn the steering wheel until the front wheels are in the straight-ahead position.

(1) Place the front wheels in the straight-ahead

position.

(2) Remove the clockspring from the steering col- (Refer to 8 - ELECTRICAL/RESTRAINTS/

umn. CLOCKSPRING - REMOVAL).

(3) Rotate the clockspring rotor clockwise to the end of its travel. Do not apply excessive torque. (4) From the end of the clockwise travel, rotate the rotor about two and one-half turns counterclockwise. The engagement dowel and yellow rubber boot should end up at the bottom, and the arrows on the clockspring rotor and case should be in alignment. The clockspring is now centered.

(5) The front wheels should still be in the straight- ahead position. Reinstall the clockspring onto the steering column. (Refer to 8 - ELECTRICAL/RE- STRAINTS/CLOCKSPRING - INSTALLATION).

REMOVAL

The clockspring cannot be repaired. It must be replaced if faulty or damaged, or if the driver airbag has been deployed.

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

NOTE: Before starting this procedure, be certain to turn the steering wheel until the front wheels are in the straight-ahead position.

(1) Place the front wheels in the straight ahead

position.

(2) Remove the driver airbag from the steering (Refer to 8 - ELECTRICAL/RESTRAINTS/

wheel. DRIVER AIRBAG - REMOVAL).

(3) Disconnect the steering wheel wire harness connectors from the upper clockspring connector receptacles.

DR

CAUTION: Be certain that the screws that secure the steering wheel puller to the steering wheel are fully engaged in the steering wheel armature with- out passing through the steering wheel and damag- ing the clockspring.

(4) Remove the steering wheel from the steering column. (Refer to 19 - STEERING/COLUMN/STEER- ING WHEEL - REMOVAL).

(5) Remove the steering column opening cover from the instrument panel. (Refer to 23 - BODY/IN- STRUMENT PANEL/STEERING COLUMN OPEN- ING COVER - REMOVAL).

(6) If the vehicle is so equipped, grasp the steering column tilt knob firmly and pull it straight rearward to remove it from the tilt adjuster mechanism lever located on the left side of the column just below the multi-function switch control stalk.

(7) From below the steering column, remove the two outboard screws that secure the upper shroud to the lower shroud.

(8) Using hand pressure, push gently inward on both sides of the upper shroud near the parting line between the upper and lower shrouds to release the snap features that secure it to the lower shroud.

(9) Remove the upper shroud from the lower

shroud.

column.

(10) From below the steering column, remove the one center screw that secures the lower shroud to the steering column lock housing.

(11) Remove the lower shroud from the steering

(12) Disconnect the two instrument panel wire harness connectors for the clockspring from the two connector receptacles below the steering column on the back of the clockspring housing.

(13) Remove the two screws that secure the clock- spring to the multi-function switch mounting housing (Fig. 20).

(14) Remove the clockspring from the multi-func- tion switch mounting housing. The clockspring can- not be repaired. It must be replaced if faulty or damaged, or if the driver airbag has been deployed. (15) If the removed clockspring is to be reused, be certain to secure the clockspring rotor to the clock- spring case to maintain clockspring centering until it is reinstalled on the steering column. If clockspring centering is not maintained, the clockspring must be centered again before it is reinstalled. (Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCKSPRING STANDARD PROCEDURE - CLOCKSPRING CEN- TERING).

DR CLOCKSPRING (Continued)

RESTRAINTS

8O - 21

THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

NOTE: Before starting this procedure, be certain that the front wheels are still in the straight-ahead position.

(1) Carefully slide the centered clockspring down over the steering column upper shaft until the hole in the locating tab at the eleven o’clock position on the clockspring case is engaged over the locating pin on the multi-function switch mounting housing (Fig. 20).

(2) Install and tighten the two screws that secure the clockspring to the multi-function switch mount- ing housing. Tighten the screws to 2 N·m (20 in. lbs.).

(3) Reconnect the two instrument panel wire har- ness connectors for the clockspring to the two connec- tor receptacles below the steering column on the back of the clockspring housing.

(4) Position the lower shroud onto the steering col-

umn.

(5) From below the steering column, install and tighten the one center screw that secures the lower shroud to the steering column lock housing. Tighten the screw to 2 N·m (20 in. lbs.).

(6) Position the upper shroud onto the steering col- umn. If the vehicle is equipped with an automatic transmission, be certain to engage the gearshift lever gap hider into the openings in the right side of the upper and lower shrouds.

(7) Align the snap features on the upper shroud with the receptacles on the lower shroud and apply hand pressure to snap them together.

(8) From below the steering column, install and tighten the two screws that secure the upper shroud to the lower shroud. Tighten the screws to 2 N·m (20
in. lbs.).

(9) If the vehicle is equipped with the optional tilt steering column, align the steering column tilt knob with the tilt adjuster mechanism lever located on the left side of the column just below the multi-function switch control stalk and, using hand pressure, push the knob firmly onto the lever.

(10) Reinstall the steering column opening cover onto the instrument panel. (Refer to 23 - BODY/IN- STRUMENT PANEL/STEERING COLUMN OPEN- ING COVER - INSTALLATION).

(11) If a new clockspring has been installed, remove the locking pin that is securing the clock- spring rotor to the clockspring case to maintain clockspring centering.

Fig.20ClockspringandMulti-FunctionSwitch

1 - CLOCKSPRING 2 - LOCATING PIN 3 - SCREW (2) 4 - LOCKING PIN 5 - ENGAGEMENT DOWEL BOOT

INSTALLATION

The clockspring cannot be repaired. It must be replaced if faulty or damaged, or if the driver airbag has been deployed.

(Refer

it may be damaged.

If the clockspring is not properly centered in rela- tion to the steering wheel, steering shaft and steer- to 8 - ing gear, ELECTRICAL/RESTRAINTS/CLOCKSPRING STANDARD PROCEDURE - CLOCKSPRING CEN- TERING). Service clocksprings are shipped pre-centered, with a plastic locking pin installed. This locking pin should not be removed until the clockspring has been installed on the steer- ing column. If the locking pin is removed before the clockspring is installed on a steering column, the clockspring centering procedure must be performed.

replacement

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE.

RESTRAINTS

8O - 22
CLOCKSPRING (Continued)

NOTE: When reinstalling the steering wheel, be cer- tain to index the yellow rubber booted engagement dowel on the upper surface of the clockspring rotor between the two fins cast into the lower surface of the steering wheel armature hub.

(12) Reinstall the steering wheel onto the steering column. (Refer to 19 - STEERING/COLUMN/STEER- ING WHEEL - INSTALLATION).

(13) Reconnect the steering wheel wire harness connectors to the upper clockspring connector recep- tacles. Be certain that the steering wheel wire har- ness is routed between the steering wheel back trim cover and the steering wheel armature.

(14) Reinstall the driver airbag onto the steering (Refer to 8 - ELECTRICAL/RESTRAINTS/

wheel. DRIVER AIRBAG - INSTALLATION).

DRIVER AIRBAG DESCRIPTION

Fig.21DriverAirbagTrimCover

1 - STEERING WHEEL 2 - TRIM COVER

The color-keyed,

injection molded, thermoplastic driver airbag protective trim cover is the most visible part of the driver airbag (Fig. 21). The driver airbag is located in the center of the steering wheel, where it is secured with two screws to the armature of the four-spoke steering wheel. All models have a Dodge Ram logo embossed in the center of the trim cover. Concealed beneath the driver airbag trim cover are the horn switch, the folded airbag cushion, the airbag cushion retainer, the airbag housing, the airbag infla- tor, and the retainers that secure the inflator to the airbag housing.

The airbag cushion, housing, and inflator are secured within an integral receptacle molded into the

DR

back of the trim cover. The stamped metal airbag housing is secured by integral tabs that engage slot- ted locking blocks at the top and bottom of the trim cover receptacle, an integral metal hook inserted through a window in the vertical wall of the trim cover receptacle at each side, and by three aluminum blind rivets. This combination of fasteners locks the trim cover securely in place on the airbag housing.

The

resistive membrane-type horn switch is secured with heat stakes to the inside surface of the driver airbag trim cover, between the trim cover and the folded airbag cushion. The horn switch ground pigtail wire has an eyelet terminal connector that is captured beneath a flanged nut on the upper right inflator mounting stud on the back of the housing (Fig. 22). The horn switch feed pigtail wire has a black, molded plastic insulator that is secured by an integral retainer in a locator hole near the upper left corner of the airbag housing and is connected to the vehicle electrical system through a dedicated take out of the steering wheel wire harness. Both horn switch wires are routed through integral routing slots in the upper locking block of the trim cover receptacle.

Fig.22DriverAirbagHousing

1 - HOUSING 2 - HORN SWITCH FEED WIRE 3 - INFLATOR 4 - TRIM COVER RECEPTACLE 5 - HORN SWITCH GROUND WIRE

The airbag used in this model is a Next Genera- tion-type that complies with revised federal airbag standards to deploy with less force than those used in some prior models. A 71.1 centimeter (28 inch) diameter, radial deploying fabric cushion with inter- nal tethers is used. The airbag inflator is a non- azide, pyrotechnic-type unit and is secured by four flanged hex nuts to four studs on the airbag cushion retainer ring to the back of the stamped metal airbag housing. A connector receptacle on the driver airbag

DR DRIVER AIRBAG (Continued)

inflator connects the inflator initiator to the vehicle electrical system through a yellow-jacketed, two-wire pigtail harness of the clockspring.

The driver airbag cannot be repaired, and must be

replaced if deployed or in any way damaged.

OPERATION

The driver airbag is deployed by electrical signals generated by the Airbag Control Module (ACM) through the driver airbag squib circuit to the initia- tor in the airbag inflator. When the ACM sends the proper electrical signal to the initiator the electrical energy generates enough heat to initiate a small pyrotechnic charge which, in turn ignites chemical pellets within the inflator. Once ignited, these chem- ical pellets burn rapidly and produce a large quantity of inert gas. The inflator is sealed to the back of the airbag housing and a diffuser in the inflator directs all of the inert gas into the airbag cushion, causing the cushion to inflate. As the cushion inflates, the driver airbag trim cover will split at predetermined breakout lines, then fold back out of the way along with the horn switch unit. Following an airbag deployment, the airbag cushion quickly deflates by venting the inert gas towards the instrument panel through vent holes within the fabric used to con- struct the back (steering wheel side) panel of the air- bag cushion.

Some of the chemicals used to create the inert gas may be considered hazardous while in their solid state before they are burned, but they are securely sealed within the airbag inflator. Typically, all poten- tially hazardous chemicals are burned during an air- bag deployment event. The inert gas that is produced when the chemicals are burned is harmless. How- ever, a small amount of residue from the burned chemicals may cause some temporary discomfort if it contacts the skin, eyes, or breathing passages. If skin or eye irritation is noted, rinse the affected area with plenty of cool, clean water. If breathing passages are irritated, move to another area where there is plenty of clean, fresh air to breath. If the irritation is not alleviated by these actions, contact a physician.

REMOVAL

The following procedure is for replacement of a faulty or damaged driver airbag. If the airbag is faulty or damaged, but not deployed, review the rec- ommended procedures for handling non-deployed supplemental restraints. (Refer to 8 - ELECTRICAL/ RESTRAINTS - STANDARD PROCEDURE - HAN- DLING SUPPLEMENTAL the driver airbag has been RESTRAINTS).

NON-DEPLOYED

If

RESTRAINTS

8O - 23

deployed, review the recommended procedures for service after a supplemental restraint deployment before removing the airbag from the vehicle. (Refer to 8 - ELECTRICAL/RESTRAINTS - STANDARD PRO- CEDURE - SERVICE AFTER A SUPPLEMENTAL RESTRAINT DEPLOYMENT).

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

WARNING: WHEN REMOVING A DEPLOYED AIR- BAG, RUBBER GLOVES, EYE PROTECTION, AND A LONG-SLEEVED SHIRT SHOULD BE WORN. THERE MAY BE DEPOSITS ON THE AIRBAG CUSHION AND OTHER INTERIOR SURFACES. IN LARGE DOSES, THESE DEPOSITS MAY CAUSE IRRITATION TO THE SKIN AND EYES.

(1) Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.

(2) From the underside of

the steering wheel, remove the two screws that secure the two trim cov- ers or speed control switches to each side of the driver airbag trim cover.

(3) From the top of the steering wheel, remove the two trim covers or speed control switches from the pockets on each side of the driver airbag trim cover to access the driver airbag mounting screws.

(4) Remove the two screws that secure the driver

airbag to the steering wheel armature (Fig. 23).

(5) Pull the driver airbag away from the steering wheel far enough to access the two electrical connec- tions at the back of the airbag housing.

(6) Disconnect the steering wheel wire harness horn switch feed take out connector from the horn switch feed pigtail wire connector insulator located on the back of the driver airbag housing.

RESTRAINTS

8O - 24
DRIVER AIRBAG (Continued)

Fig.23DriverAirbagRemove/Install

1 - CLOCKSPRING 2 - STEERING WHEEL 3 - HORN SWITCH FEED TAKE OUT 4 - DRIVER AIRBAG 5 - SCREW (2) 6 - CLOCKSPRING PIGTAIL WIRE

CAUTION: Do not pull on the clockspring pigtail wires or pry on the connector insulator to disen- gage the connector from the driver airbag inflator connector receptacle. these pigtail wires and their connector insulators can result in damage to the airbag circuits or connector insulators.

Improper removal of

(7) The clockspring driver airbag pigtail wire con- nector is secured by integral latches to the airbag inflator connector receptacle, which is located on the back of the driver airbag housing. Depress the latches on each side of the connector insulator and pull the insulator straight out from the airbag infla- tor to disconnect it from the connector receptacle.

(8) Remove the driver airbag from the steering

wheel.

(9) If the driver airbag has been deployed, the clockspring must be replaced. (Refer to 8 - ELECTRI- CAL/RESTRAINTS/CLOCKSPRING - REMOVAL).

INSTALLATION

The following procedure is for replacement of a faulty or damaged driver airbag. If the airbag is faulty or damaged, but not deployed, review the rec- ommended procedures for handling non-deployed supplemental restraints. (Refer to 8 - ELECTRICAL/ RESTRAINTS - STANDARD PROCEDURE - HAN- DLING SUPPLEMENTAL RESTRAINTS). the driver airbag has been deployed, review the recommended procedures for service after a supplemental restraint deployment before removing the airbag from the vehicle. (Refer to 8 - ELECTRICAL/RESTRAINTS - STANDARD PRO-

NON-DEPLOYED

If

DR

CEDURE - SERVICE AFTER A SUPPLEMENTAL RESTRAINT DEPLOYMENT).

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, DRIVER AIRBAG, PASSENGER AIRBAG, SEAT BELT TENSIONER, SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCON- NECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

THE

WARNING: USE EXTREME CARE TO PREVENT ANY FOREIGN MATERIAL FROM ENTERING THE DRIVER AIRBAG, OR BECOMING ENTRAPPED BETWEEN THE DRIVER AIRBAG CUSHION AND THE DRIVER AIRBAG TRIM COVER. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN OCCUPANT INJURIES UPON AIRBAG DEPLOYMENT.

WARNING: THE DRIVER AIRBAG TRIM COVER MUST NEVER BE PAINTED. REPLACEMENT AIR- BAGS ARE SERVICED WITH TRIM COVERS IN THE ORIGINAL COLORS. PAINT MAY CHANGE THE WAY IN WHICH THE MATERIAL OF THE TRIM COVER RESPONDS TO AN AIRBAG DEPLOYMENT. FAIL- URE TO OBSERVE THIS WARNING COULD RESULT IN OCCUPANT INJURIES UPON AIRBAG DEPLOY- MENT.

(1) Position the driver airbag close enough to the steering wheel to reconnect the two electrical connec- tions at the back of the airbag housing.

(2) When installing the driver airbag, reconnect the clockspring driver airbag pigtail wire connector to the airbag inflator connector receptacle by press- ing straight in on the connector (Fig. 23). You can be certain that the connector is fully engaged in its receptacle by listening carefully for a distinct, audi- ble click as the connector latches snap into place.

(3) Reconnect

the steering wheel wire harness horn switch feed take out connector to the horn switch feed pigtail wire connector insulator located on the back of the driver airbag housing.

(4) Carefully position the driver airbag in the steering wheel. Be certain that the clockspring pig- tail wire and the steering wheel wire harness in the

DR DRIVER AIRBAG (Continued)

steering wheel hub area are not pinched between the driver airbag and the steering wheel armature.

(5) Install and tighten the two screws that secure the driver airbag to the steering wheel armature. Tighten the screws to 14 N·m (120 in. lbs.).

(7) From the underside of

(6) From the top of the steering wheel, position the two trim covers or speed control switches into the pockets on each side of the driver airbag trim cover. the steering wheel, install and tighten the two screws that secure the two trim covers or speed control switches to each side of the driver airbag trim cover. Tighten the screws to 2 N·m (15 in. lbs.).

(8) Do not reconnect the battery negative cable at this time. The supplemental restraint system verifi- cation test procedure should be performed following service of any supplemental restraint system compo- nent. (Refer to 8 - ELECTRICAL/RESTRAINTS - STANDARD PROCEDURE - VERIFICATION TEST).

FRONT CENTER SEAT BELT & RETRACTOR REMOVAL

A front center seat belt and retractor is used only on standard cab models. Quad cab models have a lap belt in the front center seating position. (Refer to 8 - ELECTRICAL/RESTRAINTS/FRONT CENTER SEAT BELT BUCKLE - REMOVAL).

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) Reach between the center of the front seat cushion and front seat back to access and unbuckle

RESTRAINTS

8O - 25

the front center seat belt lower anchor latch plate from the unique black, keyed lower anchor buckle. Use an ignition key or a small screwdriver to depress the small white release button on the anchor buckle. (2) Move the front seat to its most forward position for easiest access to the front center seat belt and retractor unit.

(3) Using a trim stick or another suitable wide flat-bladed tool, gently pry at each side of the front center seat belt bezel on the cab back trim panel to release the snap features that secure the bezel to the panel (Fig. 24).

Fig.24FrontCenterSeatBeltBezel

1 - TRIM PANEL 2 - BODY BRACKET 3 - SEAT BELT BRACKET 4 - SEAT BELT 5 - BEZEL

(4) Remove the bezel from the webbing of the front

center seat belt.

(5) Remove the trim from the cab back panel. (Refer to 23 - BODY/INTERIOR/REAR CAB BACK PANEL TRIM - REMOVAL).

(6) Remove the two screws that secure the belt bracket of the front center seat belt to the body bracket on the upper cab back panel reinforcement (Fig. 25).

(7) Remove the belt bracket of the front center seat belt from the body bracket on the upper cab back panel reinforcement.

(8) Remove the two screws that secure the front center seat belt retractor bracket to the floor panel near the base of the cab back panel.

RESTRAINTS

8O - 26
FRONT CENTER SEAT BELT & RETRACTOR (Continued)

DR

DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) Position the front center seat belt and retractor unit to the floor panel at the base of the cab back panel to the right of center (Fig. 25).

(2) Install and tighten the two screws that secure the front center seat belt retractor bracket to the floor panel near the base of the cab back panel. Tighten the screws to 40 N·m (29 ft. lbs.).

(3) Position the belt bracket of the front center seat belt to the body bracket on the upper cab back panel reinforcement.

(4) Install and tighten the two screws that secure the belt bracket of the front center seat belt to the body bracket on the upper cab back panel reinforce- ment. Tighten the screws to 20 N·m (15 ft. lbs.).

(5) Reinstall the trim onto the cab back panel. (Refer to 23 - BODY/INTERIOR/REAR CAB BACK PANEL TRIM - INSTALLATION).

(6) Route the webbing of the front center seat belt through the bezel and position the bezel to the belt opening near the top of the cab back trim panel (Fig. 24).

(7) Using hand pressure, press firmly and evenly on each side of the front center seat belt bezel until it snaps into place on the cab back trim panel.

(8) Move the front seat back to its rearward posi-

tion.

(9) Reach between the center of the front seat cushion and front seat back to access and buckle the front center seat belt lower anchor latch plate to the unique black, keyed lower anchor buckle.

FRONT CENTER SEAT BELT REMOVAL

A fixed position front center seat belt buckle is located on the left side of the front center seat sec- tion (20 percent) used on all models. Standard cab models also have a unique fixed position black, keyed front center seat belt lower anchor buckle for the three-point center seat belt lower anchor located on the right side of the front center seat section. The fol- lowing procedure also applies to the fixed position front center seat lap belt located on the right side of the front center seat section of all quad cab models. The three-point front center seat belt and retractor unit is only used on standard cab models. (Refer to 8
- ELECTRICAL/RESTRAINTS/FRONT CENTER SEAT BELT & RETRACTOR - REMOVAL).

Fig.25FrontCenterSeatBelt&RetractorRemove/

Install

1 - BODY BRACKET 2 - BELT BRACKET 3 - SCREW (2) 4 - SCREW (2) 5 - RETRACTOR 6 - FLOOR PANEL 7 - SEAT BELT 8 - CAB BACK PANEL

(9) Remove the front center seat belt and retractor

unit from the floor panel.

INSTALLATION

A front center seat belt and retractor is used only on standard cab models. Quad cab models have a lap belt in the front center seating position. (Refer to 8 - ELECTRICAL/RESTRAINTS/FRONT CENTER SEAT BELT BUCKLE - INSTALLATION).

THAT

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR

IS CUT,

DR FRONT CENTER SEAT BELT (Continued)

RESTRAINTS

8O - 27

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) Move the adjacent right or left front outboard seat section (40 percent) to its most forward position for easiest access to the front center seat belt buckle, lap belt lower anchor, or unique black, keyed front center seat belt lower anchor buckle (Fig. 26).

Fig.26FrontCenterSeatBeltRemove/Install

1 - FRONT CENTER SEAT BELT 2 - ELASTIC STRAP 3 - CENTER SEAT SUPPORT BRACKET 4 - INBOARD FRONT SEAT TRACK 5 - SCREW 6 - CENTER SEAT SECTION

(2) From behind the front seat, remove the screw that secures the front center seat belt buckle, lap belt

lower anchor, or unique black, keyed front center seat belt lower anchor buckle to the center seat sup- port bracket.

(3) From the front of the front seat, reach between the center seat cushion and the adjacent right or left front outboard seat cushion to access and remove the front center seat belt buckle, lap belt unit, or unique black, keyed front center seat belt lower anchor buckle through the elastic strap on the side of the center seat cushion.

(4) Remove the front center seat belt buckle, lap belt unit, or unique black, keyed front center seat belt lower anchor buckle from the front seat.

INSTALLATION

A fixed position front center seat belt buckle is located on the left side of the front center seat sec- tion (20 percent) used on all models. Standard cab models also have a unique fixed position black, keyed front center seat belt lower anchor buckle for the three-point center seat belt lower anchor located on the right side of the front center seat section. The fol- lowing procedure also applies to the fixed position front center seat lap belt located on the right side of the front center seat section of all quad cab models. The three-point front center seat belt and retractor unit is only used on standard cab models. (Refer to 8
- ELECTRICAL/RESTRAINTS/FRONT CENTER SEAT BELT & RETRACTOR - INSTALLATION).

THAT

IS CUT,

WARNING: DURING AND FOLLOWING ANY SEAT BELT OR CHILD RESTRAINT ANCHOR SERVICE, CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES, MOUNTING HARDWARE, RETRACTORS, TETHER STRAPS, AND ANCHORS FOR PROPER INSTALLA- TION, OPERATION, OR DAMAGE. REPLACE ANY BELT FRAYED, OR TORN. STRAIGHTEN ANY BELT THAT IS TWISTED. TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY BELT THAT HAS A DAMAGED OR INOPERATIVE BUCKLE OR RETRACTOR. REPLACE ANY BELT THAT HAS A BENT OR DAMAGED LATCH PLATE OR ANCHOR PLATE. REPLACE ANY CHILD RESTRAINT ANCHOR OR THE UNIT TO WHICH THE ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT BELT OR CHILD RESTRAINT COMPONENT. ALWAYS REPLACE DAMAGED OR FAULTY SEAT BELT AND CHILD RESTRAINT COMPONENTS WITH THE CORRECT, NEW AND UNUSED REPLACEMENT PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR PARTS CATALOG.

(1) From the front of the front seat, position the front center seat belt buckle, lap belt unit, or unique black, keyed front center seat belt lower anchor