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(Refer to 23 - BODY/DOOR - FRONT/TRIM PANEL - REMOVAL). (3) Remove the driver door module from the trim
panel bezel.
INSTALLATION
(1) Install driver door module to trim panel bezel. (2) Install door trim panel (Refer to 23 - BODY/
DOOR - FRONT/TRIM PANEL - INSTALLATION).
(3) Connect battery negative cable.
REMOTE KEYLESS ENTRY MODULE DESCRIPTION
When an RKE lock message is sent to the instru- ment cluster, the instrument cluster actuates the door locks, the interior lighting is turned off, the horn chirps (if this feature is enabled), the park lamps flash (if this feature is enabled) and, if the vehicle is so equipped, the Vehicle Theft Security System (VTSS) is armed. When an RKE unlock mes- sage is sent to the instrument cluster, the instrument cluster actuates the driver side front door (or all doors if this feature is enabled) unlock, the interior lighting is turned on and, the vehicle is so if equipped, the VTSS is disarmed.
When an RKE panic message is sent to the instru- ment cluster, the instrument cluster actuates the driver side front door (or all doors if this feature is enabled) unlock, the interior lighting is turned on and, if the vehicle is so equipped, the VTSS is dis- armed. The panic message will also cause the exte- rior lamps (including the headlights) to flash, and
Fig.3DriverDoorModuleConnectorC2Receptacle
DRIVER DOOR MODULE SWITCH TESTS
POWER LOCK SWITCH
SWITCH POSITION
RESISTANCE BETWEEN CONNECTOR C-1 PINS
NEUTRAL
LOCK
UNLOCK
7 & 11
10 KILOHMS ± 1% 820 OHMS ± 5% 330 OHMS ± 5%
POWER MIRROR SWITCH
SWITCH POSITION
CONTINUITY BETWEEN PINS OF CONNECTOR
C-2
LEFT MIRROR SELECTED
UP
DOWN RIGHT LEFT
PINS 1 & 3
PINS 2 & 3
PINS 2 & 3
PINS 3 & 6RIGHT MIRROR SELECTED UP
DOWN RIGHT LEFT
PINS 3 & 7
PINS 2 & 3
PINS 2 & 3
PINS 3 & 4POWER WINDOW SWITCH
SWITCH POSITION
NEUTRAL
LEFT FRONT UP
CONTINUITY BETWEEN PINS OF CONNECTOR
C-1
PINS 1 & 8, PINS 2 & 8, PINS 3 & 8, PINS 4 & 8, PINS 5 & 8, PINS 6 & 8, PINS 8 & 10, PINS 8 &
12
PINS 5 & 9
POWER LOCKS
8N - 8
REMOTE KEYLESS ENTRY MODULE (Continued)DR
the horn to sound for about three minutes, or until a second panic message is sent to the instrument clus- ter. A vehicle speed of about 25.7 kilometers-per-hour (15 miles-per-hour) will also cancel the panic event. Refer to the owner’s manual for more information on the features, use and operation of the RKE sys- tem.
OPERATION
Whenever the vehicle battery power is interrupted, the Remote Keyless Module (RKE) Module will retain all vehicle access codes in its memory. When replac- ing or adding a key fob transmitter (maximum of 4) a DRB IIIt scan tool is required to program the RKE Module to accept the new Vehicle Access Code if a customer owned transmitter is not available.
If a functioning transmitter is available, (Refer to 8
- ELECTRICAL/POWER LOCKS/KEYLESS ENTRY TRANSMITTER - STANDARD PROCEDURE)DIAGNOSIS AND TESTING - REMOTE KEYLESS ENTRY MODULE
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire har- ness connectors, splices and grounds. Refer to the proper Body Diagnostic Procedures Manual for test- ing the Remote Keyless Entry system using a DRB IIIt scan tool.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the instrument cluster (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - REMOV- AL).
(3) Remove remote keyless entry module from
instrument cluster (Fig. 4).
INSTALLATION
ment cluster.
(1) Install remote keyless entry module to instru-
(2) Install instrument cluster (Refer to 8 - ELEC- INSTALLA-
TRICAL/INSTRUMENT CLUSTER - TION).
(3) Connect the battery negative cable.
Fig.4REMOTEKEYLESSENTRYMODULE
1 - INSTRUMENT CLUSTER 2 - REMOTE KEYLESS ENTRY MODULE
REMOTE KEYLESS ENTRY TRANSMITTER DIAGNOSIS AND TESTING - REMOTE KEYLESS ENTRY TRANSMITTER
Using special tool 9001, first test to ensure that the transmitter is functioning. Typical testing dis- tance is 2.5 centimeters (1 inch) for Asian transmit- ters and 30.5 centimeters (12 inches) for all others. To test, position the transmitter as shown (Fig. 5). Press any transmitter button, then test each button individually. The tool will beep if a radio signal strength that lights five or more LED’s is detected. Repeat this test three times. If transmitter fails any of the test refer to the Diagnostic Procedures man- ual.
Fig.5TRANSMITTERDIAGNOSIS
DR REMOTE KEYLESS ENTRY TRANSMITTER (Continued) STANDARD PROCEDURE
STANDARD PROCEDURE - RKE TRANSMITTER BATTERIES
NOTE: Do not disturb the metal terminal near the batteries. Avoid touching the new batteries. Skin oils may cause battery deterioration. If batteries are touched, clean with rubbing alcohol.
The Remote Keyless Entry (RKE) transmitter case snaps open and shut for battery access. To replace the RKE transmitter batteries:
(1) Using a thin coin, gently pry at the notch in the center seam of the RKE transmitter case halves near the key ring until the two halves unsnap. Be careful not to damage the rubber gasket when sepa- rating the case halves.
(2) Lift the back half of the transmitter case off of
the RKE transmitter.
(3) Remove the two batteries from the RKE trans-
mitter.
(4) Replace the two batteries with new 3V lithium 2016 cell. Install the batteries with the positive ter- minal up. Reference the “+ SIDE UP” on the inside of the bottom half of the transmitter case.
(5) Align the two RKE transmitter case halves with each other, and squeeze them firmly and evenly together until they snap back into place. Test trans- mitter operation.
STANDARD PROCEDURE - RKE TRANSMITTER CUSTOMER PREFERENCES
AUTOMATIC (ROLLING) LOCKS
The rolling locks feature can be toggled ON/OFF
by using the DRB IIIt only.
HORN CHIRP DISABLING / ENABLING
The horn chirp can be toggled using a DRB IIIt or by using the Remote Keyless Entry (RKE) transmit- ter that is already programmed to the vehicle. To DISABLE (cancel) the horn chirp feature: (1) Enter the vehicle and close all doors. (2) Fasten the seat belt (this will cancel the seat
belt chime).
(3) Turn the ignition to the ON position. (4) Press and hold the LOCK button for 4 seconds. Within 6 seconds with the LOCK button still depressed, press the UNLOCK button. When a single chime is heard, release both buttons.
(5) Turn the ignition OFF. (6) Turn the ignition ON or wait 60 seconds.
POWER LOCKS
8N - 9
(7) Test the horn chirp feature by pressing the
LOCK button.
If a chime is not heard, program mode was can- celed before the feature could be disabled. If neces- sary, repeat the procedure.
To ENABLE the horn chirp feature, repeat the
above procedure.
OPTICAL CHIRP (FLASH) DISABLING / ENABLING
The optical chirp can be toggled using a DRB IIIt or by using the Remote Keyless Entry (RKE) trans- mitter that is already programmed to the vehicle. To DISABLE (cancel) the optical chirp feature: (1) Enter the vehicle and close all doors. (2) Fasten the seat belt (this will cancel the seat
belt chime).
(3) Turn the ignition to the ON position. (4) Press and hold the LOCK button for 4 seconds. Within 6 seconds with the LOCK button still depressed, press the PANIC button. When a single chime is heard, release both buttons.
(5) Turn the ignition OFF. (6) Turn the ignition ON or wait 60 seconds. (7) Test the optical chirp feature by pressing the
LOCK button.
If a chime is not heard, program mode was can- celed before the feature could be disabled. If neces- sary, repeat the procedure.
To ENABLE the optical chirp feature, repeat the
above procedure.
UNLOCK SEQUENCE
The unlock sequence can be toggled using a DRB IIIt or by using the Remote Keyless Entry (RKE) transmitter that is already programmed to the vehi- cle.
To toggle between Driver door first and Unlock all
doors function:
belt chime).
(1) Enter the vehicle and close all doors. (2) Fasten the seat belt (this will cancel the seat
(3) Turn the ignition to the ON position. (4) Press and hold the UNLOCK button for 4 sec- onds. Within 6 seconds with the UNLOCK button still depressed, press the LOCK button. When a sin- gle chime is heard, release both buttons.
(5) Turn the ignition OFF. (6) Turn the ignition ON or wait 60 seconds. If a chime is not heard, program mode was can- celed before the feature could be disabled. If neces- sary, repeat the procedure.
To toggle this feature, repeat the above procedure.
POWER LOCKS
8N - 10
REMOTE KEYLESS ENTRY TRANSMITTER (Continued) STANDARD PROCEDURE - RKE TRANSMITTER PROGRAMINGNew Remote Keyless Entry (RKE) transmitters can be programed using the DRB IIIt scan tool and the proper Diagnostic Procedures manual. The DRB IIIt scan tool can provide confirmation that the PCI data bus is functional, and that all of the electronic mod- ules are sending and receiving the proper messages on the PCI data bus.
The following procedure can be used as long as one
programmed transmitter is available:
NOTE: When entering program mode using that programmed fob, ALL currently programmed fobs will be erased and they will have to be repro- grammed for If program mode is entered and no action is performed, the previously programmed fobs will continue to function.
the vehicle.
(1) Enter the vehicle and close all doors. (2) Fasten the seat belt (this will cancel the seat
belt chime). Turn the ignition to the RUN position.
(3) Press and hold the UNLOCK button on a pro- grammed transmitter for 4 to 10 seconds. Within the 4 to 10 seconds with the UNLOCK button still depressed, press the PANIC button for one second. When a single chime is heard, release both button- s.The chime indicates the system is in program mode.
DR
(4) Press and release both the LOCK and UNLOCK buttons simultaneously on a fob to be pro- grammed. A single chime will be heard, this indicates the fob has been recognized.
(5) Press and release any button on the same fob. A single chime will be heard, this indicates the fob has been programmed.
(6) Repeat steps 4 and 5 for up to a total of 4 fobs. (7) Turn the ignition OFF. (8) Turn the ignition ON or wait 60 seconds. The vehicle will remain in program mode for up to 60 seconds from when the original chime (step 3) was heard. After 60 seconds, all programmed transmitters will function normally.
SPECIFICATIONS - REMOTE KEYLESS ENTRY TRANSMITTER
RANGE
Normal operation range is up to a distance of 3 to 7 meters (10 to 23 ft.) of the vehicle. Range may be better or worse depending on the environment around the vehicle.
DR
POWER MIRRORS
8N - 11
POWER MIRRORS
TABLE OF CONTENTS
page
page
POWER MIRRORS
. . . . . . . . . . . . . . . . . . . . . . . . . 11
DESCRIPTION OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DIAGNOSIS AND TESTING - POWERMIRRORS
. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
POWER MIRROR SWITCH
DIAGNOSIS AND TESTING - POWER MIRROR
SWITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13AUTOMATIC DAY / NIGHT MIRROR
SIDEVIEW MIRROR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 12
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DIAGNOSIS AND TESTING - AUTOMATIC DAY/ NIGHT MIRROR . . . . . . . . . . . . . . . . . . . . . . 12
POWER MIRRORS DESCRIPTION
AUTOMATIC DAY/NIGHT MIRROR
The automatic day/night mirror system is able to automatically change the reflectance of the inside rear view mirror in order to reduce the glare of head- lamps approaching the vehicle from the rear. The automatic day/night rear view mirror receives bat- tery current through a fuse in the Integrated Power Module (IPM) only when the ignition switch is in the On position.
OUTSIDE REAR VIEW MIRROR
The power operated outside rear view mirrors allow the driver to adjust both outside mirrors elec- trically from the driver side front seat position by operating a switch on the driver side front door trim panel. The power mirrors receive a non-switched bat- tery feed through a fuse in the Integrated Power Module (IPM) so that the system will remain opera- tional, regardless of the ignition switch position.
OPERATION
AUTOMATIC DAY/NIGHT MIRROR
A switch located on the bottom of the automatic day/night mirror housing allows the vehicle operator to select whether the automatic dimming feature is operational. When the automatic day/night mirror is turned on, the mirror switch is lighted by an integral Light-Emitting Diode (LED). The mirror will auto- matically disable its self-dimming feature whenever the vehicle is being driven in reverse.
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Refer to the owner’s manual for more information on the features, use and operation of the automatic day/night mirror system.
OUTSIDE REAR VIEW MIRROR
The heated mirrors include an electric heating grid behind the mirror glass in each outside mirror, which can clear the mirror glass of ice, snow, or fog. (Refer to DESCRIPTION) for more information.
- ELECTRICAL/HEATED MIRRORS
DIAGNOSIS AND TESTING - POWER MIRRORS
WIRING VOLTAGE TEST
The following wiring test determines whether or not voltage is continuous through the body harness to switch.
(1) Remove the power mirror switch (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - REMOVAL).
(2) Disconnect wire harness connector from back of
power mirror switch.
(3) Connect the clip end of a 12 volt test light to Pin 5 in the mirror switch harness connector. Touch the test light probe to Pin 3.
If the test light illuminates, the wiring circuit
between the battery and switch is OK.
If the lamp does not illuminate, first check fuse in the Integrated Power Module (IPM). If fuse is OK, then check for a broken wire.
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.
POWER MIRRORS
8N - 12
POWER MIRRORS (Continued) POWER MIRROR MOTOR TESTIf the power mirror switch is receiving proper cur- rent and ground and mirrors do not operate, proceed with power mirror motor test. Refer to the appropri- ate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connec- tors, splices and grounds.
(1) Remove the power mirror switch (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - REMOVAL).
(2) Disconnect wire harness connector to power
mirror switch (Fig. 1). (3) Using two jumper wires: † Connect one to a 12 volt source † Connect the other to a good body ground † Refer to the Mirror Motor Test Chart for proper wire connections at the switch connector
Fig.1POWERMIRRORSWITCHCONNECTOR
MIRROR MOTOR TEST CHART
12 VOLTS GROUND SWITCH CONNECTOR
PIN 1
PIN 6
PIN 2
PIN 2
PIN 7
PIN 4
PIN 2
PIN 2PIN 2
PIN 2
PIN 1
PIN 6
PIN 2
PIN 2
PIN 7
PIN 4MIRROR REACTION LEFT RIGHT UP LEFT DOWN RIGHT
UP LEFT DOWN RIGHT
(4) If results shown in table are not obtained, check for open or shorted circuit. Replace mirror assembly as necessary.
DR
AUTOMATIC DAY / NIGHT MIRROR DESCRIPTION
The automatic day/night mirror uses a thin layer of electrochromic material between two pieces of con- ductive glass to make up the face of the mirror. When the mirror switch is in the On position, two photocell sensors are used by the mirror circuitry to monitor external light levels and adjust the reflec- tance of the mirror.
OPERATION
The ambient photocell sensor is located on the for- ward-facing (windshield side) of the rear view mirror housing, and detects the ambient light levels outside of the vehicle. The headlamp photocell sensor is located inside the rear view mirror housing behind the mirror glass and faces rearward, to detect the level of the light being received at the rear window side of the mirror. When the circuitry of the auto- matic day/night mirror detects that the difference between the two light levels is too great (the light level received at the rear of the mirror is much higher than that at the front of the mirror), it begins to darken the mirror.
The automatic day/night mirror circuitry also mon- itors the transmission using an input from the backup lamp circuit. The mirror circuitry is pro- grammed to automatically disable its self-dimming feature whenever it senses that the transmission backup lamp circuit is energized.
The automatic day/night mirror is a completely self-contained unit and cannot be repaired. If faulty or damaged, the entire mirror assembly must be replaced.
DIAGNOSIS AND TESTING - AUTOMATIC DAY / NIGHT MIRROR
For complete circuit diagrams, refer to the appro- priate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connec- tors, splices and grounds.
(1) Check the fuse in the Integrated Power Module (IPM). If OK, go to Step 2. If not OK, repair the shorted circuit or component as required and replace the faulty fuse.
(2) Turn the ignition switch to the On position. Check for battery voltage at the fuse in the IPM. If OK, go to Step 3. If not OK, repair the open circuit to the ignition switch as required.
DR AUTOMATIC DAY / NIGHT MIRROR (Continued)
POWER MIRRORS
8N - 13
(3) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Unplug the wire harness connector from the auto- matic day/night mirror (Fig. 2). Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused igni- tion switch output (run/start) circuit cavity of the automatic day/night mirror wire harness connector. If OK, go to Step 4. If not OK, repair the open circuit to the IPM as required.
Fig.2AutomaticDay/NightMirror
1 - REAR FACING SENSOR 2 - CONNECTOR 3 - FORWARD FACING SENSOR 4 - SWITCH
(4) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Check for continuity between the ground circuit cav- ity of the automatic day/night mirror wire harness connector and a good ground. There should be conti- nuity. If OK, go to Step 5. If not OK, repair the cir- cuit to ground as required.
(5) Connect the battery negative cable. Turn the ignition switch to the On position. Set the parking brake. Place the transmission gear selector lever in the Reverse position. Check for battery voltage at the backup lamp switch output circuit cavity of the auto- matic day/night mirror wire harness connector. If OK, go to Step 6. If not OK, repair the open circuit as required.
(6) Turn the ignition switch to the Off position. Disconnect the battery negative cable. Plug in the
automatic day/night mirror wire harness connector. Connect the battery negative cable. Turn the ignition switch to the On position. Place the transmission gear selector lever in the Neutral position. Place the mirror switch in the On (the LED in the mirror switch is lighted) position. Cover the forward facing ambient photocell sensor to keep out any ambient light.
NOTE: The ambient photocell sensor must be cov- ered completely, so that no light reaches the sen- sor. Use a finger pressed tightly against the sensor, or cover the sensor completely with electrical tape.
(7) Shine a light into the rearward facing head- lamp photocell sensor. The mirror glass should darken. If OK, go to Step 8. If not OK, replace the faulty automatic day/night mirror unit.
(8) With the mirror glass darkened, place the transmission gear selector lever in the Reverse posi- tion. The mirror should return to its normal reflec- tance. If not OK, replace the faulty automatic day/ night mirror unit.
REMOVAL
For removal procedures, (Refer to 23 - BODY/IN-
TERIOR/REAR VIEW MIRROR - REMOVAL).
POWER MIRROR SWITCH DIAGNOSIS AND TESTING - POWER MIRROR SWITCH
The power mirror switch is included with the Driver Door Module. (Refer to 8 - ELECTRICAL/ POWER LOCKS/DOOR MODULE - DIAGNOSIS AND TESTING).
REMOVAL
The power mirror switch is included with the Driver Door Module. (Refer to 8 - ELECTRICAL/ POWER LOCKS/DOOR MODULE - REMOVAL).
SIDEVIEW MIRROR REMOVAL
(Refer to 23 - BODY/EXTERIOR/SIDE VIEW MIR-
ROR - REMOVAL).
8N - 14
POWER SEATS
POWER SEATS
TABLE OF CONTENTS
page
DR
page
POWER SEATS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 14
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DIAGNOSIS AND TESTING - POWER SEATSYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DRIVER SEAT SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 15
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DIAGNOSIS AND TESTING - DRIVER SEATSWITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 16PASSENGER SEAT SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 16
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DIAGNOSIS AND TESTING - PASSENGERSEAT SWITCH . . . . . . . . . . . . . . . . . . . . . . . . 17
POWER SEATS DESCRIPTION
The power seat system option allows the driver or passenger to electrically adjust the seat position for optimum control and comfort using the power seat switches located on the outboard seat cushion side shield. The power seat system allows the seating position to be adjusted forward, rearward, front up, front down, rear up, or rear down. The power seat system receives battery current through a fuse in the Integrated Power Module, regardless of the ignition switch position. The power seat system includes the following components:
† Driver Power Seat Switch † Passenger Power Seat Switch † Driver Power Seat Track † Passenger Power Seat Track † Power Lumbar Adjuster(s) Some models equipped with the power seat option also feature a power operated lumbar support in the seat back. The power lumbar support allows the user to inflate or deflate a bladder located in the lower seat back to achieve optimum comfort and support in the lower lumbar region of the spinal column. The power lumbar support shares the battery feed circuit of the power seat system.
Following are general descriptions of the major components in the power seat system. Refer to Heated Seat System for information on the individ-
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 18POWER SEAT TRACK
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 18
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DIAGNOSIS AND TESTING - POWER SEATTRACK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 19LUMBAR CONTROL SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19LUMBAR MOTOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DIAGNOSIS AND TESTING - LUMBAR MOTOR . . 20ually controlled heated front seats. Refer to the own- er’s manual in the vehicle glove box for more information on the features, use and operation of the power seat system.
OPERATION
The power seat system allows the driver and/or front passenger seating positions to be adjusted elec- trically and independently using the separate power seat switches found on the outboard seat cushion side shield of each front seat. See the owner’s manual in the vehicle glove box for more information on the features, use and operation of the power seat system.
DIAGNOSIS AND TESTING - POWER SEAT SYSTEM
Before any testing of the power seat system is attempted, the battery should be fully-charged and all wire harness connections and pins checked to ensure proper continuity and grounds. For circuit descriptions and diagrams, refer to Wiring Diagrams. With the dome lamp on, apply the power seat switch in the direction of the failure. If the dome lamp dims, the seat may be jamming. Check under and behind the seat for binding or obstructions. If the dome lamp does not dim, proceed with testing of the individual components and circuits.
DR
POWER SEATS
8N - 15
DRIVER SEAT SWITCH DESCRIPTION
moved in the opposite direction, the battery feed and ground path to the motor are reversed through the switch contacts. This causes the adjuster motor to run in the opposite direction.
No power seat switch should be held applied in any direction after the adjuster has reached its travel limit. The power seat adjuster motors each contain a self-resetting circuit breaker to protect them from overload. However, consecutive or frequent resetting of the circuit breaker must not be allowed to con- tinue, or the motor may be damaged.
DIAGNOSIS AND TESTING - DRIVER SEAT SWITCH
For circuit descriptions and diagrams, refer to Wir-
(1) Disconnect and isolate the battery negative
(2) Remove the power seat switch from the power
ing.
cable.
seat.
(3) Use an ohmmeter to test the continuity of the power seat switches in each position. See the Power Seat Switch Continuity chart (Fig. 2). If OK, refer to Power Seat Track Diagnosis and Testing in this group. If not OK, replace the faulty power seat switch.
Fig.2TestingDriverPowerSeatSwitch
DRIVER POWER SEAT SWITCH TEST TABLE DRIVER SWITCH
CONTINUITY BETWEEN
POSITION
OFF
VERTICAL UP
VERTICAL DOWN
B-N, B-J, B-M B-E, B-L, B-K
A-E, A-M, B-N, B-E A-J, A-N, B-M, B-E
Fig.1DRPowerSeatSwitch
1 - POWER SEAT SWITCH ASSEMBLY 2 - FRONT SEAT CUSHION ADJUSTMENT BUTTON 3 - COMPLETE SEAT ADJUSTMENT BUTTON 4 - REAR SEAT CUSHION ADJUSTMENT BUTTON 5 - LUMBAR ADJUSTMENT BUTTON
The power seat on this model can be adjusted in eight different directions, up, down, front up, front down, rear up, rear down, rearward and forward. The power seat switch (Fig. 1) on this model has an additional switch knob for adjusting the power lum- bar support. The power seat switch is located on the outboard side of the seat cushion on the seat cushion side shield. Refer to the owner’s manual in the vehi- cle glove box for more information on the power seat switch functions and the seat adjusting procedures. The individual switches in the power seat switch assembly cannot be repaired. If one switch is dam- aged or faulty, the entire power seat switch assembly must be replaced.
OPERATION
When a power switch control knob or knobs are actuated, a battery feed and a ground path are applied through the switch contacts to the power seat track or selected adjuster motor operates to move the seat track or recliner through its drive unit in the selected direc- tion until the switch is released, or until the travel limit of the adjuster is reached. When the switch is
recliner adjuster motor. The
DR
INSTALLATION
(1) Position the power seat switch on the seat cushion side shield and install the screws that secure the power seat switch to seat cushion side shield.
(2) Connect the electrical connector. (3) Install the seat cushion side shield on the seat. Refer to the Body section of the service manual for the procedure.
(4) If equipped, install the screw that secures the recliner lever to the recliner mechanism release shaft on the outboard side of the front seat.
(5) Connect the battery negative cable.
O-P, O-R, P-R
O-P, Q-R O-R, P-Q
PASSENGER SEAT SWITCH DESCRIPTION
POWER SEATS
8N - 16
DRIVER SEAT SWITCH (Continued)DRIVER POWER SEAT SWITCH TEST TABLE DRIVER SWITCH
CONTINUITY BETWEEN
A-L, B-K
A-K, B-L
A-M, B-N A-N, B-M A-E, B-J A-J, B-E
POSITION
HORIZONTAL
FORWARD
HORIZONTAL REARWARD
FRONT TILT UP
FRONT TILT DOWN
REAR TILT UP
REAR TILT DOWN
LUMBAR OFF
LUMPAR UP (INFLATE)
LUMBAR DOWN
(DEFLATE)
REMOVAL
cable.
(1) Disconnect and isolate the battery negative
(2) Remove the seat cushion side shield from the seat. Refer to the Body section of the service manual for the procedure.
(3) Pull the switch bezel or side shield unit out from the seat far enough to access the switch wire harness connector. Gently pry the locking tabs of the switch away from the wire harness connector and carefully unplug the connector from the power seat switch module.
Fig.3PowerSeatSwitchRemove/Install
1 - SEAT SIDE SHIELD 2 - POWER SEAT SWITCH 3 - SCREWS
(4) Remove the screws that secure the power seat
switch (Fig. 3).
Fig.4DRPowerSeatSwitch
1 - POWER SEAT SWITCH ASSEMBLY 2 - FRONT SEAT CUSHION ADJUSTMENT BUTTON 3 - COMPLETE SEAT ADJUSTMENT BUTTON 4 - REAR SEAT CUSHION ADJUSTMENT BUTTON 5 - LUMBAR ADJUSTMENT BUTTON
The power seat on this model can be adjusted in eight different directions, up, down, front up, front down, rear up, rear down, rearward and forward. The power seat switch (Fig. 4) on this model has an additional switch knob for adjusting the power lum- bar support. The power seat switch is located on the outboard side of the seat cushion on the seat cushion side shield. Refer to the owner’s manual in the vehi- cle glove box for more information on the power seat switch functions and the seat adjusting procedures.
DR PASSENGER SEAT SWITCH (Continued)
The individual switches in the power seat switch assembly cannot be repaired. If one switch is dam- aged or faulty, the entire power seat switch assembly must be replaced.
OPERATION
POWER SEATS
8N - 17
recliner adjuster motor. The
When a power switch control knob or knobs are actuated, a battery feed and a ground path are applied through the switch contacts to the power seat track or selected adjuster motor operates to move the seat track or recliner through its drive unit in the selected direc- tion until the switch is released, or until the travel limit of the adjuster is reached. When the switch is moved in the opposite direction, the battery feed and ground path to the motor are reversed through the switch contacts. This causes the adjuster motor to run in the opposite direction.
No power seat switch should be held applied in any direction after the adjuster has reached its travel limit. The power seat adjuster motors each contain a self-resetting circuit breaker to protect them from overload. However, consecutive or frequent resetting of the circuit breaker must not be allowed to con- tinue, or the motor may be damaged.
DIAGNOSIS AND TESTING - PASSENGER SEAT SWITCH
For circuit descriptions and diagrams, refer to Wir-
ing.
cable.
seat.
(1) Disconnect and isolate the battery negative
(2) Remove the power seat switch from the power
(3) Use an ohmmeter to test the continuity of the power seat switches in each position. See the Power Seat Switch Continuity chart (Fig. 5). If OK, refer to Power Seat Track Diagnosis and Testing in this group. If not OK, replace the faulty power seat switch.
Fig.5TestingPassengerPowerSeatSwitch
PASSENGER SEAT SWITCH TEST TABLE
PASSENGER SWITCH
CONTINUITY BETWEEN
POSITION
OFF
VERTICAL UP
VERTICAL DOWN
HORIZONTAL
FORWARD
HORIZONTAL REARWARD
FRONT TILT UP
FRONT TILT DOWN
REAR TILT UP
REAR TILT DOWN
LUMBAR OFF
LUMPAR UP (INFLATE)
LUMBAR DOWN
(DEFLATE)
REMOVAL
B-N, B-J, B-M B-E, B-L, B-K
A-E, A-M, B-N, B-E A-J, A-N, B-M, B-E
A-L, B-K
A-K, B-L
A-M, B-N A-N, B-M A-E, B-J A-J, B-E
O-P, O-R, P-R
O-P, Q-R O-R, P-Q
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the seat cushion side shield from the seat. Refer to the Body section of the service manual for the procedure.
(3) Pull the switch bezel or side shield unit out from the seat far enough to access the switch wire harness connector. Gently pry the locking tabs of the switch away from the wire harness connector and carefully unplug the connector from the power seat switch module.
POWER SEATS
8N - 18
PASSENGER SEAT SWITCH (Continued)DR
Fig.6PowerSeatSwitchRemove/Install
1 - SEAT SIDE SHIELD 2 - POWER SEAT SWITCH 3 - SCREWS
(4) Remove the screws that secure the power seat
switch (Fig. 6).
INSTALLATION
(1) Position the power seat switch on the seat cushion side shield and install the screws that secure the power seat switch to seat cushion side shield.
(2) Connect the electrical connector. (3) Install the seat cushion side shield on the seat. Refer to the Body section of the service manual for the procedure.
(4) If equipped, install the screw that secures the recliner lever to the recliner mechanism release shaft on the outboard side of the front seat.
(5) Connect the battery negative cable.
POWER SEAT TRACK DESCRIPTION
The eight-way power seat option includes a power seat track assembly located under each front seat (Fig. 7). The power seat track assembly replaces the standard manually operated seat tracks. The lower half of the power seat track is secured at the front with two bolts to the floor panel seat cross member, and at the rear with two bolts to the floor panel. Four nuts secure the bottom of the seat cushion frame to the upper half of the power seat track unit. The power seat track assembly cannot be repaired, and is serviced only as a complete assembly. If any component in this assembly is faulty or damaged, the entire power seat track must be replaced.
Fig.7DRDriverPowerSeatTrack
1 - POWER SEAT TRACK ASSEMBLY 2 - SEAT TRACK WIRE HARNESS 3 - SEAT BELT BUCKLE ASSEMBLIES
OPERATION
The power seat track unit includes three reversible electric motors that are secured to the upper half of the track unit. Each motor moves the seat adjuster through a combination of worm-drive gearboxes and screw-type drive units.
The front and rear of the seat are operated by two separate vertical adjustment motors. These motors can be operated independently of each other, tilting the entire seat assembly forward or rearward; or, they can be operated in unison by selecting the proper power seat switch functions, which will raise or lower the entire seat assembly. The third motor is the horizontal adjustment motor, which moves the seat track in the forward and rearward directions.
DIAGNOSIS AND TESTING - POWER SEAT TRACK
For complete power seat circuit descriptions and
diagrams, refer to Wiring Diagrams.
Operate the power seat switch to move all three seat motors in each direction. The seat should move in each of the selected directions. If the power seat track fails to operate in only one direction, move the seat track a short distance in the opposite direction and test again to be certain that the track is not at its travel limit. If the power seat track still fails to operate in only one direction, refer to Diagnosis and Testing of the Power Seat Switch in this section. If
DR POWER SEAT TRACK (Continued)
the power seat track fails to operate in more than one direction, proceed as follows:
(1) Check the power seat fuse in the power distri- bution center. If OK, go to Step 2. If not OK, replace the faulty fuse.
(2) Remove the power seat switch from the seat. Check for battery voltage at the fused B(+) circuit cavity of the power seat switch wire harness connec- tor. If OK, go to Step 3. If not OK, repair the open circuit to the power distribution center as required. (3) Check for continuity between the ground cir- cuit cavity of the power seat switch wire harness con- nector and a good ground. There should be continuity. If OK, go to Step 4. If not OK, repair the open circuit to ground as required.
(4) Test the power seat switch as described in this group. If the switch tests OK, check the wire harness between the power seat switch and the motor for shorts or opens. If the circuits check OK, replace the faulty power seat track (adjuster) assembly. If the circuits are not OK, repair the wire harness as required.
REMOVAL
(1) Remove the appropriate seat from the vehicle.
(Refer to 23 - BODY/SEATS/SEAT - REMOVAL).
(2) Remove the power seat switch from the seat. Refer to the procedure in this section of the service manual.
(3) Remove four seat track mounting nuts from
cushion pan.
(4) Disconnect
the power
seat
electrical and
remove the seat track from the seat cushion.
(5) Remove the necessary components that must be transferred to the replacement seat track (seat belt buckles, wire harness, etc.).
INSTALLATION
(1) Install the necessary components that must be transferred to the replacement seat track (seat belt buckles, wire harness, etc.).
(2) Position the seat track and install the retaining nuts on the seat cushion pan studs. Torque the bolts to 25 N·m.
(3) Route and connect the power seat electrical on
the seat track and cushion pan.
(4) Install the power seat switch on the seat. Refer to the procedure in this section of the service man- ual.
(5) Install the seat in the vehicle (Refer to 23 -
BODY/SEATS/SEAT - INSTALLATION). (6) Connect the negative battery cable.
POWER SEATS
8N - 19
LUMBAR CONTROL SWITCH DESCRIPTION
The power lumbar seat option includes an electri- cally operated lumbar support mechanism. A single two-way momentary power lumbar switch is integral with the power seat switches. The power lumbar switch is secured to the back of the seat cushion side shield with screws, and the switch paddle protrudes through a hole to the outside of the shield. The switch paddle is located in a shallow depression molded into the outer surface of the seat cushion side shield that helps to shroud it from unintentional actuation when entering or leaving the vehicle.
The power lumbar switches cannot be adjusted or repaired and, if faulty or damaged, the seat switch assembly must be replaced.
OPERATION
When the power lumbar switch paddle is actuated, a battery feed and a ground path are applied through the switch contacts to the power lumbar adjuster motor. The motor operates to move the lumbar adjuster through its drive unit in the selected direc- tion until the switch is released, or until the travel limit of the adjuster is reached. When the switch is moved in the opposite direction, the battery feed and ground path to the motor are reversed through the switch contacts. This causes the motor to run in the opposite direction.
The power lumbar switch should not be held applied in either direction after the adjuster has reached its travel limit. The power lumbar adjuster motor contains a self-resetting circuit breaker to pro- tect it from overload. However, consecutive or fre- quent resetting of the circuit breaker must not be allowed to continue, or the motor may be damaged.
REMOVAL
The power lumbar switch is integral with the other power seat switches. Refer to the appropriate driver or passenger power front seat switch removal and/or installation procedure.
LUMBAR MOTOR DESCRIPTION
The power lumbar seat option includes an electri- cally operated lumbar support mechanism. The only visible evidence of this option is the separate power lumbar switch control paddle that is located on the outboard seat cushion side shield, next to the other power seat switch control knobs. The power lumbar adjuster and motor are concealed beneath the seat back trim cover and padding, where they are secured
POWER SEATS
8N - 20
LUMBAR MOTOR (Continued)to a molded plastic back panel and to the seat back frame.
The power lumbar adjuster cannot be repaired, and is serviced only as a unit with the seat back frame. If the power lumbar adjuster or the seat back frame are damaged or faulty, the entire seat back frame unit must be replaced (Refer to 23 - BODY/SEATS/ SEAT BACK - REMOVAL).
OPERATION
The power lumbar adjuster mechanism includes a reversible electric motor that is secured to the inboard side of the seat back panel and is connected to a worm-drive gearbox. The motor and gearbox operate the lumbar adjuster mechanism in the center of the seat back by extending and retracting a cable that actuates a lever. The action of this lever com- presses or relaxes a grid of flexible slats. The more this grid is compressed, the more the slats bow out- ward against the center of the seat back padding, providing additional lumbar support.
DIAGNOSIS AND TESTING - LUMBAR MOTOR
Actuate the power lumbar switch to move the power lumbar adjuster in each direction. The power lumbar adjuster should move in both directions. It should be noted that the power lumber adjuster nor- mally operates very quietly and exhibits little visible movement. If the power lumbar adjuster fails to oper- ate in only one direction, move the adjuster a short distance in the opposite direction and test again to be certain that the adjuster is not at its travel limit. If the power lumbar adjuster fails to operate in only
DR
one direction, Test the appropriate power seat switch as described in this group. If the power lumbar adjuster fails to operate in either direction, perform the following tests. For complete circuit diagrams, refer to Wiring.
(1) Check the power seat circuit breaker. If OK, go to Step 2. If not OK, replace the faulty power seat circuit breaker.
(2) Check for battery voltage at the power seat cir- cuit breaker. If OK, go to Step 3. If not OK, repair the open fused B(+) circuit to the fuse in the Inte- grated Power Module as required.
(3) Remove the outboard seat cushion side shield from the seat. Disconnect the seat wire harness con- nector from the power lumbar switch connector receptacle. Check for battery voltage at the fused B(+) circuit cavity of the power seat wire harness connector for the power lumbar switch. If OK, go to Step 4. If not OK, repair the open fused B(+) circuit to the power seat as required.
(4) Check for continuity between the ground cir- cuit cavity of the power seat wire harness connector for the power lumbar switch and a good ground. There should be continuity. If OK, go to Step 5. If not OK, repair the open ground circuit to ground as required.
(5) Test the power lumbar switch. . If the switch tests OK, test the circuits of the power seat wire har- ness between the power lumbar adjuster motor and the power lumbar switch for shorts or opens. If the circuits check OK, replace the faulty seat back frame assembly. If the circuits are not OK, repair the power seat wire harness as required.
DR
POWER WINDOWS
8N - 21
POWER WINDOWS
TABLE OF CONTENTS
page
page
POWER WINDOWS
WINDOW SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 21
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DIAGNOSIS AND TESTING - POWERWINDOWS . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DIAGNOSIS AND TESTING - WINDOW
SWITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 23WINDOW MOTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
POWER WINDOWS DESCRIPTION
The power window system allows each of the door windows to be raised and lowered electrically by actuating a switch on each door panel. A master switch on the drivers door allows the driver to raise or lower each of the passenger door windows and to lock out the individual switches on the passenger doors from operation. The power window system receives battery feed through a fuse in the Integrated Power Module (IPM) and a circuit breaker located in the instrument panel wiring harness near the park brake pedal, only when the ignition switch is in the RUN or ACCESSORY position.
OPERATION
WINDOW SWITCH
The power window switches control the battery and ground feeds to the power window motors. The passenger door power window switches receive their battery and ground feeds through the circuitry of the drivers window switch. When the power window lock- out switch is in the Lock position, the battery feed for the passenger door window switches is inter- rupted.
WINDOW MOTOR
Window motors use permanent type magnets. The B+ and ground applied at the motor terminal pins will cause the motor to rotate in one direction. Reversing current through the motor terminals will cause the motor to rotate in the opposite direction.
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.
DIAGNOSIS AND TESTING - POWER WINDOWS WIRING VOLTAGE TEST
The following wiring test determines whether or not voltage is continuous through the body harness to the front switch.
(1) Remove the Driver Door Module (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - REMOVAL).
(2) Disconnect wire connector from back of power
window switch.
(3) Switch ignition to the ON position. (4) Connect the clip end of a 12 volt test light to Pin 14 of the window switch harness connector. Touch the test light probe to Pin 10. † If the test light illuminates, the wiring circuit † If the lamp does not illuminate, first check the fuse in the Integrated Power Module (IPM). Check the circuit breaker located near the park brake pedal. If fuse and circuit breaker are OK, then check for a broken wire.
between the battery and switch is OK.
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. POWER WINDOW MOTOR TEST
If the power window motor is receiving proper cur- rent and ground and does not operate, proceed with motor test. Refer to the appropriate wiring informa- tion. The wiring information includes wiring dia- grams, proper wire and connector repair procedures, details of wire harness routing and retention, connec- tor pin-out information and location views for the various wire harness connectors, splices and grounds. (1) Remove front door trim panel as necessary to gain access to power window motor wire connector
POWER WINDOWS
8N - 22
POWER WINDOWS (Continued)DR
(Refer to 23 - BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).
(2) Disconnect power window motor wire connector
from door harness.
(3) Using two jumper wires, connect one to a bat-
tery (+) source and the other to a good ground (-).
(4) Connect the Negative (-) jumper probe to one of
the motor connector terminals.
(5) Momentarily touch the Positive (+) probe to the other motor connector terminal.
jumper
When positive probe is connected the motor should rotate in one direction to either move window up or down. If window is all the way up or down the motor will grunt and the inner door panel will flex when actuated in that one direction.
(6) Reverse jumper probes at the motor connector terminals and window should now move in opposite direction. If window does not move or grunt, replace the motor.
If window moved completely up or down, reverse the jumper probes and cycle window to the opposite position to verify full operation.
If motor grunts and does not move, verify that reg-
ulator is not binding.
(1) Check the fuse in the Integrated Power Module (IPM) and the circuit breaker located near the park brake pedal. If OK, go to Step 2. If not OK, replace the faulty fuse or circuit breaker.
(2) Turn the ignition switch to the On position. Check for battery voltage at the fuse in the Inte- grated Power Module (IPM). If OK, turn the ignition switch to the Off position and go to Step 3. If not OK, check circuit breaker and repair the circuit to the ignition switch as required.
(3) Disconnect and isolate the battery negative cable. Remove the power window switch unit from the door trim panel (passenger doors). The drivers door switch is included with the Driver Door Module (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - DIAGNOSIS AND TESTING) for service procedures. Unplug the wire harness connector from the switch unit.
(4) Test the power window switch continuity. See the Power Window Switch Continuity charts to deter- mine if the continuity is correct in the Off, Up and Down switch positions (Fig. 1). If OK, (Refer to 8 - ELECTRICAL/POWER WINDOWS - DIAGNOSIS AND TESTING). If not OK, replace the faulty switch.
WINDOW MOTOR REMOVAL
The window motor is serviced with the window reg- ulator (Refer to 23 - BODY/DOOR - FRONT/WINDOW REGULATOR - REMOVAL) or (Refer to 23 - BODY/ DOORS - REAR/WINDOW REGULATOR - REMOVAL).
(LED)
The Light-Emitting Diode
WINDOW SWITCH DIAGNOSIS AND TESTING - WINDOW SWITCH illumination lamps for all of the power window and lock switch and bezel unit switch paddles receive battery current through the power window circuit breaker in the junction block. If all of the LEDs are inoperative in both the power window and lock switch units and the power windows are inoperative, (Refer to 8 - ELEC- TRICAL/POWER WINDOWS - DIAGNOSIS AND TESTING). If the power windows operate, but any or all of the LEDs are inoperative, the power window and lock switch units with the inoperative LED(s) is faulty and must be replaced. For complete circuit dia- grams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin- out information and location views for the various wire harness connectors, splices and grounds.
Fig.1PASSENGERDOORSWITCH
POWER WINDOW SWITCH CONTINUITY
CHART
SWITCH POSITION
NEUTRAL UP (FRONT PASSENGER)
UP (REAR
PASSENGER) DOWN (FRONT PASSENGER) DOWN (REAR PASSENGER)
CONTINUITY BETWEEN PIN 2 AND 5, PIN 4 AND 1
PIN 6 AND 5
PIN 6 AND 1
PIN 6 AND 1
PIN 6 AND 5
DR WINDOW SWITCH (Continued) REMOVAL
FRONT PASSENGER
INSTALLATION
FRONT PASSENGER
POWER WINDOWS
8N - 23
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the door trim panel
(Refer to 23 - BODY/DOOR - FRONT/TRIM PANEL - REMOVAL). (3) Remove the switch from the trim panel bezel.
REAR PASSENGER
cable.
(1) Disconnect and isolate the battery negative
(2) Remove the door trim panel
(Refer to 23 - BODY/DOORS - REAR/TRIM PANEL - REMOVAL).
(3) Gently pry switch from door trim panel.
(1) Insert switch to trim panel bezel. (2) Install door trim panel (Refer to 23 - BODY/
DOOR - FRONT/TRIM PANEL - INSTALLATION).
(3) Connect battery negative cable.
REAR PASSENGER
(1) Install switch to door trim panel (2) Install door trim panel (Refer to 23 - BODY/
DOORS - REAR/TRIM PANEL - INSTALLATION).
(3) Connect battery negative cable.
DR
RESTRAINTS
8O - 1
RESTRAINTS
TABLE OF CONTENTS
page
page
RESTRAINTS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WARNINGWARNINGS - RESTRAINT SYSTEM . . . . . . . . 5
DIAGNOSIS AND TESTING - SUPPLEMENTAL
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 27
FRONT OUTBOARD SEAT BELT &
RETRACTOR REMOVAL
REMOVAL - STANDARD CAB REMOVAL - QUAD CAB
. . . . . . . . . . . . 28
. . . . . . . . . . . . . . . . 29RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . 6
INSTALLATION
STANDARD PROCEDURE
STANDARD PROCEDURE - HANDLING
NON-DEPLOYED SUPPLEMENTAL RESTRAINTS . . . . . . . . . . . . . . . . . . . . . . . . . 6
STANDARD PROCEDURE - SERVICE
AFTER A SUPPLEMENTAL RESTRAINT DEPLOYMENT. . . . . . . . . . . . . . . . . . . . . . . . . 7
STANDARD PROCEDURE - VERIFICATION
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ACM COVER REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 9AIRBAG CONTROL MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 12AUTOMATIC LOCKING RETRACTOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 13
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 14CHILD RESTRAINT ANCHOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 14
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 17CLOCKSPRING
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 18
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
STANDARD PROCEDURE - CLOCKSPRINGCENTERING . . . . . . . . . . . . . . . . . . . . . . . . . 19
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 21DRIVER AIRBAG
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 22
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 24FRONT CENTER SEAT BELT & RETRACTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 26FRONT CENTER SEAT BELT
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
INSTALLATION - STANDARD CAB . . . . . . . . . 31
INSTALLATION - QUAD CAB . . . . . . . . . . . . . 32FRONT OUTBOARD SEAT BELT BUCKLE
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 34PASSENGER AIRBAG
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 34
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 37PASSENGER AIRBAG ON/OFF SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 38
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 39REAR CENTER SEAT BELT & RETRACTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 40REAR OUTBOARD SEAT BELT & RETRACTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 42REAR SEAT BELT BUCKLE
REMOVAL
REMOVAL - CENTER & LEFT OUTBOARD . . 43
REMOVAL - CENTER ANCHOR & RIGHTOUTBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . 43
INSTALLATION
INSTALLATION - CENTER & LEFT
OUTBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . 45
INSTALLATION - CENTER ANCHOR &
RIGHT OUTBOARD . . . . . . . . . . . . . . . . . . . . 45
SEAT BELT SWITCH
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 46
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
DIAGNOSIS AND TESTING - SEAT BELTSWITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
SEAT BELT TENSIONER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 47
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 48SEAT BELT TENSION REDUCER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 48
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 498O - 2
RESTRAINTS
DR
DIAGNOSIS AND TESTING - SEAT BELT
TENSION REDUCER . . . . . . . . . . . . . . . . . . . 49
SEAT BELT TURNING LOOP ADJUSTER
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 50SIDE CURTAIN AIRBAG
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 51
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 53SIDE IMPACT AIRBAG CONTROL MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 53
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
REMOVALREMOVAL REMOVAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55INSTALLATION
INSTALLATION INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . 56
. . . . . . . . . . . . . . . . . . . . . . . 57RESTRAINTS DESCRIPTION
An occupant restraint system is standard factory- installed safety equipment on this model. Available occupant restraints for this model include both active and passive types. Active restraints are those which require the vehicle occupants to take some action to employ, such as fastening a seat belt; while passive restraints require no action by the vehicle occupants to be employed (Fig. 1).
ACTIVE RESTRAINTS
The active restraints for this model include: † Front Seat Belts - Both outboard front seating positions are equipped with three-point seat belt sys- tems employing a lower B-pillar mounted inertia latch-type emergency locking retractor, height-adjust- able upper B-pillar mounted turning loops, a fixed lower seat belt anchor secured to the lower B-pillar (standard cab) or floor panel adjacent to the B-pillar (quad cab), and a traveling end-release seat belt buckle secured to the inboard seat track. The driver side retractor for standard cab models includes an electrically actuated seat belt tension reducer. The passenger side front seat retractor for all models is also switchable from an emergency locking retractor to an automatic locking retractor. The front seat belt buckle for the driver side of all models includes an integral seat belt switch that detects whether its seat belt has been fastened. The center front seating posi- tion for standard cab models is also equipped with a employing a floor panel three-point mounted inertia latch-type retractor, a routing bracket and bezel near the top of the cab back panel, and two fixed end-release buckles secured to the cen- ter seat cushion frame. The center front seating posi- tion for quad cab models is equipped with a fixed lap belt and an end-release buckle secured to the center seat cushion frame. † Rear Seat Belts - All three rear seating posi- tions are equipped with three-point seat belt sys- tems. The outboard seating position belts employ a lower C-pillar mounted inertia latch-type emergency locking retractor, a fixed position upper C-pillar mounted turning loop, and a fixed lower seat belt
seat belt
anchor secured to the lower C-pillar. The rear seat center seating position belt has a rear floor panel mounted inertia latch-type emergency locking retrac- tor and a routing bracket and bezel on the top of the cab back panel. The end-release buckle units for the right outboard seating position and the center seat- ing position lower anchor are integral to the center retractor mounting bracket on the rear floor panel. The end-release buckle units for the center and left outboard seating positions are individually secured to the rear floor panel on models with the standard equipment rear bench seat, or secured with the rear seat mounting hardware on models with the optional 60/40 split rear bench seat. † Child Restraint Anchors - All standard cab models are equipped with two, fixed-position, child seat upper tether anchors that are integral to the upper cab back panel reinforcement and concealed behind individual trim cover and bezel units that are integral to the cab back trim panel. All quad cab models are equipped with three child seat upper tether anchor straps that are secured to the upper cab back panel reinforcement, behind the upright rear seat back. Two lower anchors are also provided for the front outboard seating position of standard cab models, and for each rear outboard seating posi- tion on quad cab models. These lower anchors are accessed from the front of the seat where the seat back meets the seat cushion. The child seat tether and lower anchors for the front seat are deleted on quad cab models.
PASSIVE RESTRAINTS
include the following:
The passive restraints available for this model † Dual Front Airbags - Next Generation driver and front passenger airbags are available for this model. This airbag system is a passive, inflatable, Supplemental Restraint System (SRS) and vehicles with this equipment can be readily identified by the “SRS - AIRBAG” logo molded into the driver airbag trim cover in the center of the steering wheel and also into the passenger airbag door on the instru- ment panel above the glove box (Fig. 2). Vehicles with the airbag system can also be identified by the airbag indicator, which will illuminate in the instru-
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Fig.1SupplementalRestraintSystem
1 - AIRBAG CONTROL MODULE 2 - PASSENGER AIRBAG 3 - PASSENGER AIRBAG ON/OFF SWITCH (STD CAB ONLY) 4 - DRIVER AIRBAG
5 - SIDE CURTAIN AIRBAG 6 - SIDE IMPACT AIRBAG CONTROL MODULE 7 - SEAT BELT TENSIONER
ment cluster for about six seconds as a bulb test each time the ignition switch is turned to the On position. A pyrotechnic-type seat belt tensioner is integral to the front outboard seat belt retractors mounted on each lower B-pillar of all models equipped with dual front airbags. † Side Curtain Airbags - Optional side curtain airbags are available for this model when it is also equipped with dual front airbags. This airbag system is a passive, inflatable, Supplemental Restraint Sys- tem (SRS) and vehicles with this equipment can be readily identified by a molded identification trim but-
ton with the “SRS - AIRBAG” logo located on the headliner above each B-pillar (Fig. 2).
The supplemental restraint system includes the following major components, which are described in further detail elsewhere in this service information: † Airbag Control Module - The Airbag Control Module (ACM) is located on a mount on the floor panel transmission tunnel, below the center of the instrument panel. † Airbag Indicator - The airbag indicator is inte- gral to the ElectroMechanical Instrument Cluster (EMIC), which is located on the instrument panel in front of the driver.
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RESTRAINTS (Continued)Fig.2SRSLogo
† Clockspring - The clockspring is located near the top of the steering column, directly beneath the steering wheel. † Driver Airbag - The driver airbag is located in the center of the steering wheel, beneath the driver airbag trim cover. † Driver Knee Blocker - The driver knee blocker is a structural unit secured to the back side of and integral to the instrument panel steering column opening cover. † Passenger Airbag - The passenger airbag is located on the instrument panel, beneath the passen- ger airbag door on the instrument panel above the glove box on the passenger side of the vehicle. † Passenger Airbag On/Off Switch - Standard cab models without a rear seat are equipped with a passenger airbag on/off switch, which is located on the right side of the instrument panel center bezel. † Passenger Knee Blocker - The passenger knee blocker is a structural reinforcement that is integral to and concealed within the glove box door. † Seat Belt Tensioner - The seat belt tensioner is integral to the front outboard seat belt retractor units on vehicles equipped with dual front airbags. † Side Impact Airbag Control Module - Two Side Impact Airbag Control Modules (SIACM) are used on vehicles with the optional side curtain air- bags, one left side and one right side. One SIACM is located behind the B-pillar trim above the outboard front seat belt retractor within each B-pillar. † Side Curtain Airbag - In vehicles equipped with this option, a side curtain airbag is located on each inside roof side rail above the headliner, and extends from the A-pillar to the B-pillar on standard cab models, and from the A-pillar to the C-pillar on quad cab models.
The ACM, both SIACMs, and the EMIC each con- tain a central processing unit and programming that allow them to communicate with each other using
DR
the Programmable Communications Interface (PCI) data bus network. This method of communication is used by the ACM for control of the airbag indicator on all models equipped with dual front airbags. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- TROL MODULES/COMMUNICATION - DESCRIP- TION).
Hard wired circuitry connects the supplemental restraint system components to each other through the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be con- nected to each other, to the vehicle electrical system, and to the supplemental restraint system compo- nents through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insu- lators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.
OPERATION
ACTIVE RESTRAINTS
The primary passenger restraints in this or any other vehicle are the standard equipment factory-in- stalled seat belts and child restraint anchors. Seat belts and child restraint anchors are referred to as an active restraint because the vehicle occupants are required to physically fasten and properly adjust these restraints in order to benefit from them. 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 active restraints.
PASSIVE RESTRAINTS
The passive restraints are referred to as a supple- mental restraint system because they were designed and are intended to enhance the protection for the occupants of the vehicle only when used in conjunc- tion with the seat belts. They are referred to as pas- sive restraints because the vehicle occupants are not required to do anything to make them operate; how- ever, the vehicle occupants must be wearing their seat belts in order to obtain the maximum safety benefit factory-installed supplemental restraint system.
from the
The supplemental restraint system electrical cir- cuits are continuously monitored and controlled by a microprocessor and software contained within the Airbag Control Module (ACM) and, on vehicles equipped with the side curtain airbags, both Side
DR RESTRAINTS (Continued)
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of
the
supplemental
Impact Airbag Control Modules (SIACM). An airbag indicator in the ElectroMechanical Instrument Clus- ter (EMIC) illuminates for about six seconds as a bulb test each time the ignition switch is turned to the On or Start positions. Following the bulb test, the airbag indicator is turned on or off by the ACM to indicate the status of the supplemental restraint system. If the airbag indicator comes on at any time other than during the bulb test, it indicates that there is a problem in the supplemental restraint sys- tem electrical circuits. Such a problem may cause air- bags not to deploy when required, or to deploy when not required. Deployment
restraints depends upon the angle and severity of an impact. Deployment is not based upon vehicle speed; rather, deployment is based upon the rate of deceleration as measured by the forces of gravity (G force) upon the impact sensors. When an impact is severe enough, the microprocessor in the ACM or the SIACM signals the inflator of the appropriate airbag units to deploy their airbag cushions. The outboard front seat belt tensioners are provided with a deployment signal by the ACM in conjunction with the driver and passen- ger airbags. During a frontal vehicle impact, the knee blockers work in concert with properly fastened and adjusted seat belts to restrain both the driver and the front seat passenger in the proper position for an airbag deployment. The knee blockers also absorb and distribute the crash energy from the driver and the front seat passenger to the structure of the instrument panel. The seat belt tensioner removes the slack from the outboard front seat belts to provide further assurance that the driver and front seat passenger are properly positioned and restrained for an airbag deployment.
Typically, the vehicle occupants recall more about the events preceding and following a collision than they do of an airbag deployment itself. This is because the airbag deployment and deflation occur so rapidly. In a typical 48 kilometer-per-hour (30 mile- per-hour) barrier impact, from the moment of impact until the airbags are fully inflated takes about 40
milliseconds. Within one to two seconds from the moment of impact, the airbags are almost entirely deflated. The times cited for these events are approx- imations, which apply only to a barrier impact at the times will vary somewhat, given speed. Actual depending upon the vehicle speed, impact angle, severity of the impact, and the type of collision.When the ACM monitors a problem in any of the dual front airbag system circuits or components, including the seat belt tensioners, it stores a fault
