Login- Download PDF Manual
-
sages to the EVIC, CMTC over the PCI J1850 data bus.
The temperature function is supported by the ambient temperature sensor, a wiring circuit, the Front Control Module, the Programmable Communi- cations Interface (PCI) data bus, and a portion of the Electronics module. If any portion of the ambient temperature sensor circuit fails, the Front Control Module will self-diagnose the circuit.
For complete circuit diagrams, refer to Wiring.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - AMBIENT TEMPERATURE SENSOR
(1) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the ambient temperature sensor wire har- ness connector.
(2) Measure the resistance of the ambient temper- ature sensor. At 24° C (75° F), the sensor resistance should be approximately 10.3 kilohms. At 30° C (86° F), the sensor resistance should be approximately 7.57 kilohms. The sensor resistance should decrease as the temperature rises. If OK, refer to Diagnosis and Testing - Ambient Temperature Sensor Cir- cuit in this group. If not OK, replace the faulty ambient temperature sensor.
NOTE: The ambient temperature sensor is a very sensitive device. When testing, be certain the tem- perature sensor has had time to stabilize (room temperature) before attempting to read the sensor resistance. Failure to let the ambient temperature sensor temperature stabilize could result in a mis- leading test.
DIAGNOSIS AND TESTING - AMBIENT TEMPERATURE SENSOR CIRCUIT
(1) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Disconnect the ambient temperature sensor wire har- ness connector and the Front Control Module wire harness connector.
(2) Connect a jumper wire between the two termi- nals of the ambient temperature sensor wire harness connector.
(3) Check for continuity between the sensor return circuit and the ambient temperature sensor signal circuit cavities of the Front Control Module wire har- ness connector. There should be continuity. If OK, go to Step 4. If not OK, repair the open sensor return or signal circuit as required.
(4) Remove the jumper wire from the ambient tem- perature sensor wire harness connector. Check for continuity between the sensor return circuit cavity of the Front Control Module wire harness connector and a good ground. There should be no continuity. If OK, go to Step 5. If not OK, repair the shorted sen- sor return circuit as required.
(5) Check for continuity between the ambient tem- perature sensor signal circuit cavity of the Front Control Module wire harness connector and a good ground. There should be no continuity. If OK, refer to Diagnosis and Testing - Overhead Console in this group. If not OK, repair the shorted ambient temperature sensor signal circuit as required.
REMOVAL
(1) Open the hood. (2) Disconnect and isolate the battery negative
cable.
(3) Working on the underside of the hood, remove
screw holding sensor to hood panel.
(4) Disconnect the sensor electrical connector and
remove sensor from vehicle.
INSTALLATION
(1) Connect the sensor electrical connector. (2) Working on the underside of the hood, install
screw holding sensor to hood panel.
(3) Connect the battery negative cable. (4) Close the hood.
UNIVERSAL TRANSMITTER DESCRIPTION
Some DR models are equipped with a universal transmitter transceiver. The universal transmitter is integral to the Electronic Vehicle Information Center (EVIC) and the Compass Mini-Trip Computer (CMTC), which is located in the overhead console. The only visible component of the universal transmit- ter are the three transmitter push buttons centered between the modules push buttons located just rear- ward of the display screen in the overhead console. The three universal transmitter push buttons are identified with one, two or three light indicators so that they be easily identified.
Each of the three universal transmitter push but- tons control an independent radio transmitter chan- nel. Each of these three channels can be trained to transmit a different radio frequency signal for the remote operation of garage door openers, motorized gate openers, home or office lighting, security sys- tems or just about any other device that can be equipped with a radio receiver in the 286 to 399
MegaHertz (MHz) frequency range for remote opera-8M - 12 MESSAGE SYSTEMS UNIVERSAL TRANSMITTER (Continued)
DR
(2) Hold the RF detector within one inch of the TRAINED universal transmitter and press any of the transmitters buttons.
(3) The red signal detection LEDs will light and the tool will beep if a radio signal is detected. Repeat this test three times.
tion. The universal transmitter is capable of operat- ing systems using either rolling code or non-rolling code technology.
The electronics module displays messages and a small house-shaped icon with one, two or three dots corresponding to the three transmitter buttons to indicate the status of the universal transmitter. The EVIC messages are: † Clearing Channels - Indicates that all of the transmitter codes stored in the universal transmitter have been successfully cleared. † Channel “X” Training - Indicates that the uni- transmitter is in its transmitter learning versal mode.† Channel “X” Trained - Indicates that the uni- versal transmitter has successfully acquired a new transmitter code. † Channel “X” Transmitting - Indicates that a transmitter button has been transmitter is
the universal
trained universal depressed and that transmitting.
The universal transmitter cannot be repaired, and is available for service only as a unit with the EVIC or CMTC modules. If any part of the universal trans- mitter is faulty or damaged, the complete EVIC or CMTC module must be replaced.
OPERATION
The universal
transmitter operates on a non- switched source of battery current so the unit will remain functional, regardless of the ignition switch position. For more information on the features, pro- gramming procedures and operation of the universal transmitter, see the owner’s manual in the vehicle glove box.
DIAGNOSIS AND TESTING - UNIVERSAL TRANSMITTER
If the Universal Transmitter is inoperative, but the Electronic Vehicle Information Center (EVIC) is oper- ating normally, see the owner’s manual in the vehicle glove box for instructions on training the Transmit- ter. Retrain the Transmitter with a known good transmitter as instructed in the owner’s manual and test the Transmitter operation again. If the unit is still inoperative, test the universal transmitter with Radio Frequency Detector special tool. If both the Transmitter and the EVIC module are inoperative, refer to Electronic Vehicle Information Center Diagnosis and Testing in this group for further diagnosis. For complete circuit diagrams, refer to Wiring Diagrams. (Fig. 8) as described below:
(1) Turn the Radio Frequency (RF) Detector ON. A “chirp” will sound and the green power LED will light. If the green LED does not light, replace the battery.
Fig.8RADIOFREQUENCYDETECTOR
1 - SIGNAL DETECTION LED’S 2 - POWER LED 3 - ON/OFF SWITCH 4 - 9V BATTERY
STANDARD PROCEDURE
STANDARD PROCEDURE - ERASING TRANSMITTER CODES
To erase the universal transmitter codes, simply hold down the two outside buttons until the display confirms the operation.
NOTE: Individual channels cannot be erased. Eras- ing the transmitter codes will erase ALL pro- grammed codes.
STANDARD PROCEDURE - SETTING TRANSMITTER CODES (1) Turn off the engine. (2) Erase the codes by pressing the two outside buttons. Release the buttons when the display con- firms the operation (about 20 seconds).
(3) Choose one of the three buttons to train. Place the hand-held transmitter within one inch of the uni-
DR UNIVERSAL TRANSMITTER (Continued)
versal transmitter and push the buttons on both transmitters.
(4) Release both buttons. Your universal transmit- ter is now “trained”. To train the other buttons, repeat Step 3 and Step 4. Be sure to keep your hand- held transmitter in case you need to retrain the uni- versal transmitter.
MESSAGE SYSTEMS
8M - 13
REMOVAL
(1) For universal transmitter removal and installa- tion procedure, (Refer to 8 - ELECTRICAL/OVER- HEAD CONSOLE/COMPASS/MINI-TRIP COMPUTER - REMOVAL and INSTALLATION).
DR
POWER SYSTEMS
8N - 1
POWER SYSTEMS
TABLE OF CONTENTS
POWER LOCKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
POWER MIRRORS . . . . . . . . . . . . . . . . . . . . . . . . 11POWER SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
POWER WINDOWS. . . . . . . . . . . . . . . . . . . . . . . . 21page
page
POWER LOCKS
TABLE OF CONTENTS
page
page
POWER LOCKS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DIAGNOSIS AND TESTING - POWER LOCKS . . 3POWER LOCK SWITCH
DIAGNOSIS AND TESTING - POWER LOCK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SWITCH REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 4DOOR LOCK MOTOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIAGNOSIS AND TESTING - DOOR LOCKMOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DRIVER DOOR MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIAGNOSIS AND TESTING - DRIVER DOORMODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 7REMOTE KEYLESS ENTRY MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DIAGNOSIS AND TESTING - REMOTEKEYLESS ENTRY MODULE . . . . . . . . . . . . . . . 8
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 8REMOTE KEYLESS ENTRY TRANSMITTER
DIAGNOSIS AND TESTING - REMOTE
KEYLESS ENTRY TRANSMITTER . . . . . . . . . . 8
STANDARD PROCEDURE
STANDARD PROCEDURE - RKE
TRANSMITTER BATTERIES . . . . . . . . . . . . . . 9
STANDARD PROCEDURE - RKE
TRANSMITTER CUSTOMER PREFERENCES . . . . . . . . . . . . . . . . . . . . . . . 9
STANDARD PROCEDURE - RKE
TRANSMITTER PROGRAMING . . . . . . . . . . . 10
SPECIFICATIONS - REMOTE KEYLESS
ENTRY TRANSMITTER . . . . . . . . . . . . . . . . . 10
POWER LOCKS DESCRIPTION
POWER LOCKS
A power operated door lock system is available fac- tory-installed equipment on this model. The power lock system allows all of the doors to be locked or unlocked electrically by operating a switch on either front door trim panel. The power lock system receives non-switched battery current through a fuse in the Integrated Power Module (IPM), so that the power
locks remain operational, regardless of the ignition switch position.
The instrument cluster locks the doors automati- cally when the vehicle is driven beyond the speed of 25.7 Km/h (15 mph), all doors are closed and the accelerator pedal is depressed. The rolling door lock feature can be disabled if desired.
This vehicle also offers several customer program- mable features, which allows the selection of several optional electronic features to suit individual prefer- ences.
The power lock system for this vehicle can also be operated remotely using the available Remote Key-
POWER LOCKS
8N - 2
POWER LOCKS (Continued)less Entry (RKE) system radio frequency transmit- ters, if equipped.
Certain functions and features of the power lock system rely upon resources shared with other elec- tronic modules in the vehicle over the Programmable Communications Interface (PCI) data bus network. For proper diagnosis of these electronic modules or of the PCI data bus network, the use of a DRB IIIt scan tool and the appropriate diagnostic information are required.
CENTRAL LOCKING/UNLOCKING
The instrument cluster will lock all doors when a cylinder lock switch is activated in the “lock” posi- tion. When the instrument cluster receives an unlock command from one of the cylinder lock switches, it will unlock only that door. If the instrument cluster receives a second command within a 5 second period, it will unlock all the remaining doors. The illumi- nated entry will activate during door unlock.
ENHANCED ACCIDENT RESPONSE
the PCI bus, the instrument cluster will:
output for approximately 300 milliseconds.
Upon detection of an airbag deployment by way of † Immediately disable the power door lock output. † Unlock all doors by activating the door unlock † After actuating the door unlock output, allow the door lock motors to be activated if the door lock input has been inactive (not erratic) for 2 seconds since the reception of the airbag deployment mes- sage.
REMOTE KEYLESS ENTRY
A Radio Frequency (RF)
type Remote Keyless Entry (RKE) system is an available factory-installed option on this model. The RKE system allows the use of a remote battery-powered radio transmitter to sig- nal the instrument cluster to actuate the power lock system. The RKE receiver operates on non-switched battery current through a fuse in the Integrated Power Module (IPM), so that the system remains operational, regardless of the ignition switch position. The RKE transmitters are also equipped with a Panic button. If the Panic button on the RKE trans- mitter is depressed, the horn will sound and the exterior lights will flash on the vehicle for about three minutes, or until the Panic button is depressed a second time. A vehicle speed of about 25.7 kilome- ters-per-hour (15 miles-per-hour) will also cancel the panic event.
The RKE system can also perform other functions on this vehicle. If the vehicle is equipped with the optional Vehicle Theft Security System (VTSS), the RKE transmitter will arm the VTSS when the Lock
DR
button is depressed, and disarm the VTSS when the Unlock button is depressed.
The RKE system includes two transmitters when the vehicle is shipped from the factory, but the sys- tem can retain the vehicle access codes of up to a total of four transmitters. The transmitter codes are retained in the RKE module memory, even if the bat- tery is disconnected. If an RKE transmitter is faulty or lost, new transmitter vehicle access codes can be programmed into the system using a DRB IIIt scan tool.
feature
This vehicle also offers several customer program- mable features, which allows the selection of several optional electronic features to suit individual prefer- options ences. Customer programmable affecting the RKE system include: † Remote Unlock Sequence - Allows the option of having only the driver side front door unlock when the RKE transmitter Unlock button is depressed the first time. The remaining doors unlock when the but- ton is depressed a second time within 5 seconds of the first unlock press. Another option is having all doors unlock upon the first depression of the RKE transmitter Unlock button. † Sound Horn on Lock - Allows the option of having the horn sound a short chirp as an audible verification that the RKE system received a valid Lock request from the RKE transmitter, or having no audible verification. † Flash Lights with Lock and Unlock - Allows the option of having the park lamps flash as an opti- cal verification that the RKE system received a valid Lock request or Unlock request from the RKE trans- mitter, or having no optical verification.
† Programming Additional Transmitters
Allows up to a total of four transmitter vehicle access codes to be stored in the receiver memory.
Certain functions and features of the RKE system rely upon resources shared with other electronic modules in the vehicle over the Programmable Com- munications Interface (PCI) data bus network. The PCI data bus network allows the sharing of sensor information. This helps to reduce wire harness com- plexity, internal controller hardware, and component sensor current loads. For diagnosis of these electronic modules or of the PCI data bus network, the use of a DRB IIIt scan tool and the appropriate diagnostic information are required.
OPERATION
POWER LOCKS
The instrument cluster locks or unlocks the doors when an actuation input signal from a door lock switch or Remote Keyless Entry Module (RKE) is received. The instrument cluster turns on the output
DR POWER LOCKS (Continued)
drivers and provides a voltage level to the door lock motor for a specified time. All passenger doors can be locked or unlocked using a mechanical button mounted on the door trim panel. The front passenger doors can be locked or unlocked by using the key cyl- inder.
AUTOMATIC DOOR LOCKS
When the automatic door locks are ENABLED the door locks will lock when the vehicle is moving at about 25.7 Km/h (15 mph), all doors are closed and the accelerator pedal is depressed. This feature can be switched ON or OFF as desired. When the system is DISABLED the door locks will operate normally, but will not lock automatically when the vehicle is rolling. Once the automatic door locks have been actuated, they will not try to lock the doors again until a door is opened.
DOOR LOCK INHIBIT
If the key is in the ignition, in any position, and either front door is ajar, the doors can not be locked, but the unlock function still operates. Pressing the RKE lock/unlock button under these conditions will result in a normal lock/unlock activation.
After the key is removed from the ignition switch, or the doors are closed, the power door locks will operate normally.
DOOR LOCK CIRCUIT PROTECTION
If the door lock switch is actuated continuously for more than five seconds the instrument cluster will turn the output driver OFF (the instrument cluster would consider the switch stuck). Each lock motor is protected with a Positive Temperature Coefficient device that prevents motor burn out.
REMOTE KEYLESS ENTRY
† LOCK: Pressing the LOCK button locks all doors, sounds horn (chirp) once if enabled, flashes the park lamps once if enabled, and arms the Vehicle Theft Security System (VTSS), if enabled. The chirp verifies that the RKE module has sent a message to the instrument cluster for door lock operation. If a door has not been closed before pressing the LOCK button, the vehicle may not be secured and the VTSS (if equipped) will not arm until the door is closed. † UNLOCK: Pressing the UNLOCK button once will unlock the driver’s door first if enabled, flashes the park lamps twice if enabled, activates the illumi- nated entry system, and disarms the Vehicle Theft Security System (VTSS), if equipped. Pressing the UNLOCK button twice within five seconds will unlock all doors, if driver’s door first is enabled. † PANIC: Pressing the PANIC button sounds the horns at half second intervals, flashes the exterior
POWER LOCKS
8N - 3
lamps, and turns ON the interior lamps. The panic alarm will remain on for three minutes, or until the PANIC button is actuated again or the vehicle speed exceeds 25.7 Km/h (15 mph) will cancel the panic event.
The Remote Keyless Entry Module is capable of retaining the transmitter Vehicle Access Code(s) in its memory even after vehicle power has been inter- rupted.
DIAGNOSIS AND TESTING - POWER LOCKS
The most reliable, efficient, and accurate means to diagnose the power lock system requires the use of a DRBIIIt scan tool and the proper Diagnostic Procedures manual. The DRBIIIt scan tool can provide confirmation that the PCI data bus is functional, that all of the electronic modules are sending and receiv- ing the proper messages on the PCI data bus, and that the power lock motors are being sent the proper hard wired outputs by the relays for them to perform their power lock system func- tions.
Following are tests that will help to diagnose the hard wired components and circuits of the power lock system. However, these tests may not prove conclu- sive in the diagnosis of this system. In order to obtain conclusive testing of the power lock system, the Programmable Communications Interface (PCI) data bus network and all of the electronic modules that provide inputs to, or receive outputs from the power lock system components must be checked.
The instrument cluster will set Diagnostic Trouble
Codes (DTC) for the power lock system.
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.
PRELIMINARY DIAGNOSIS
As a preliminary diagnosis for the power lock sys- tem, note the system operation while you actuate both the Lock and Unlock functions with the power lock switches and with the Remote Keyless Entry (RKE) transmitter. Then, proceed as follows: † If the entire power lock system fails to function with either the power lock switches or the RKE transmitter, check the fused B(+) fuse in the Inte- grated Power Module (IPM). † If the power lock system functions with both power lock switches, but not with the RKE transmit- ter, proceed to diagnosis of the Remote Keyless Entry (RKE) system. (Refer to 8 - ELECTRICAL/POWER LOCKS/KEYLESS ENTRY TRANSMITTER - DIAG-
DR
POWER LOCK SWITCH TEST TABLE
SWITCH POSITION
RESISTANCE BETWEEN
NEUTRAL
LOCK
UNLOCK
PINS 1 & 5
10 KILOHMS ±1% 820 OHMS ±5% 330 OHMS ±5%
Fig.1PowerLockSwitchConnectorReceptacle
REMOVAL
The power lock switch on the driver side front door trim panel is integral to the driver door module. (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - REMOVAL).
(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.
INSTALLATION
(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.
POWER LOCKS
8N - 4
POWER LOCKS (Continued)(Refer
NOSIS AND TESTING) or (Refer to 8 - ELECTRI- CAL/POWER LOCKS/REMOTE KEYLESS ENTRY MODULE - DIAGNOSIS AND TESTING). † If the power lock system functions with the RKE transmitter, but not with one or both power lock switches, proceed to diagnosis of the door lock switches. to 8 - ELECTRICAL/POWER LOCKS/POWER LOCK SWITCH - DIAGNOSIS AND TESTING). † If the driver side power lock switch operates only the driver side front door power lock motor, but all other power lock motors operate with the passen- ger side power lock switch or the RKE transmitter, use a DRBIIIt scan tool and the appropriate diagnos- tic information to diagnose the Programmable Com- munications Interface (PCI) data bus. † If only one power lock motor fails to operate with both power lock switches and the RKE trans- mitter, proceed to diagnosis of the power lock motor. (Refer to 8 - ELECTRICAL/POWER LOCKS/POWER LOCK MOTOR - DIAGNOSIS AND TESTING).
POWER LOCK SWITCH DIAGNOSIS AND TESTING - POWER LOCK SWITCH
The Light-Emitting Diode (LED) illumination lamp of the power lock switch receives battery current through a fuse in the Integrated Power Module (IPM) on a fused ignition switch output (run) circuit. The power lock switch on the driver side front door trim panel is integral to the driver door module. (Refer to 8 - ELECTRICAL/POWER LOCKS/DOOR MODULE - DIAGNOSIS AND TESTING). If the power lock switch operates, but the LED is inoperative, check for battery current at the switch with the ignition switch in the On position. If OK, replace the faulty switch. 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.
(1) Disconnect and isolate the battery negative cable. Remove the power lock switch from the door trim panel. Disconnect the door wire harness connec- tor for the power lock switch from the switch connec- tor receptacle.
(2) Test the power lock switch resistance. See the Power Lock Switch Test chart to determine if the resistance is correct for the switch in each switch position (Fig. 1). If not OK, replace the faulty power lock switch as required.
DR
POWER LOCKS
8N - 5
DOOR LOCK MOTOR DESCRIPTION
The lock mechanisms are actuated by a reversible electric motor mounted within each door. The power lock motors are integral to the door latch units.
The power lock motors cannot be adjusted or repaired and, if faulty or damaged, the door latch unit must be replaced.
OPERATION
The door lock motors are controlled by the instru- ment cluster. A positive and negative battery connec- tion to the two motor terminals will cause the motor to move in one direction. Reversing the current will cause the motor to move in the opposite direction.
DIAGNOSIS AND TESTING - DOOR LOCK MOTOR
The most reliable, efficient, and accurate means to diagnose the power lock system requires the use of a DRBIIIt scan tool and the proper Diagnostic Proce- dures manual. The DRBIIIt scan tool can provide confirmation that the PCI data bus is functional, that all of the electronic modules are sending and receiv- ing the proper messages on the PCI data bus, and that the power lock motors are being sent the proper hard wired outputs by the door modules for them to perform their power lock system functions.
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.
DRIVER DOOR MODULE DESCRIPTION
A Driver Door Module (DDM) is used on all models equipped with power locks, power windows, and power mirrors. The DDM houses the following switches: † Power Lock Switch - The DDM includes a two-way, momentary, resistor multiplexed switch to control the power lock system. † Power Mirror Selector Switch - A three-posi- tion rocker switch in the DDM selects the right or left power mirror for adjustment, or turns the power mirror system Off. † Power Mirror Adjustment Switches - Four momentary, arrowhead shaped, directional switches allow the driver to adjust the selected power mirror in the Up, Down, Right, or Left directions.
† Power Window Lockout Switch - A two-way, latching, push-button switch in the DDM allows the vehicle operator to lock out the power window switches on each passenger door so that the passen- ger door power windows may be operated only from the master switches in the DDM. † Power Window Switches - The DDM houses a two-way, momentary power window switch for the driver side front door. This switch also has a second detent in the Down direction and internal circuitry to provide an Auto-Down feature for the driver side front door power window. In addition to the power window switch for its own door, the DDM houses individual master switches for each passenger door power window.
The DDM also incorporates several green Light- Emitting Diodes (LEDs) that illuminate the power lock and power window switch paddles, and the power mirror switch directional buttons to improve switch visibility in dark ambient lighting conditions. The DDM cannot be adjusted or repaired and, if faulty or damaged, the entire DDM unit must be replaced.
OPERATION
The Driver Door Module (DDM) combines a power lock switch, a driver power window switch with an Auto-down feature, master switches for each passen- ger door power window, a power window lockout switch, a power mirror selector switch, and four power mirror adjustment switches in a single unit. The switches in the DDM can be diagnosed using conventional diagnostic tools and methods.
Power Lock Switch
The DDM power lock switch circuitry is connected in series between ground and the driver door switch mux input of the instrument cluster. Each power lock switch position (Lock, Unlock, and Neutral) provides a different resistance value to the instrument cluster input, which allows the instrument cluster to sense the switch position. Based upon the power lock switch input, the instrument cluster controls the bat- tery and ground feed outputs to the individual power lock motors to lock or unlock the door latches. The Light-Emitting Diode (LED) in the DDM power lock switch is connected to battery current through the power window circuit breaker in the Integrated Power Module (IPM) on a fused ignition switch out- put (run-acc) circuit so that the switch will be illumi- nated whenever the ignition switch is in the On or Accessory positions.
Power Window Switches
The DDM power window switch circuitry is con- nected to battery current through a circuit breaker in
POWER LOCKS
8N - 6
DRIVER DOOR MODULE (Continued)the Integrated Power Module (IPM) on a fused igni- tion switch output (run-acc) circuit so that the power windows will operate whenever the ignition switch is in the On or Accessory positions. Each two-way, momentary master passenger power window switch in the DDM provides battery current and ground to the individual power window switches on each pas- senger door so that the power window switch controls the battery current and ground feeds to its respective power window motor. The DDM switch for the driver side front door power window is labeled “Auto” and includes an auto-down feature. When this switch is depressed to a second momentary detent position and released, the driver door power window is automati- cally operated through an internal circuit and relay to its fully lowered position. The Auto-down event is cancelled if the switch paddle is depressed a second time in either the Up or Down direction. When the two position window lockout switch in the DDM is depressed and latched in the lockout position, the battery current feed to each of the individual passen- ger power window switches is interrupted so that the passenger door power windows can only be operated from the master switches in the DDM. The window lockout switch also controls the battery current feed for the LED in each passenger power window switch so that the switch will not be illuminated when it is locked out.
Power Mirror Switches
The DDM power mirror switch circuitry is con- nected to battery current through a fuse in the IPM on a fused B(+) circuit so that the power mirrors remain operational regardless of the ignition switch position. A rocker type selector switch has three posi- tions, one to select the right mirror, one to select the left mirror, and a neutral Off position. After the right or left mirror is selected, one of four directional but- tons is depressed to move the selected mirror Up, Down, Right or Left. The DDM power mirror switch circuitry controls the battery current and ground feeds to each of the four (two in each mirror head) power mirror motors. The Light-Emitting Diode (LED) in the DDM power mirror switch is connected to battery current through the power window circuit breaker in the IPM on a fused ignition switch output (run-acc) circuit so that the switch directional but- tons will be illuminated whenever the ignition switch is in the On or Accessory positions.
DR
DIAGNOSIS AND TESTING - DRIVER DOOR MODULE
(LED)
The Light-Emitting Diode
illumination lamps for all of the Driver Door Module (DDM) power window, power lock, and power mirror switches receive battery current through the power window circuit breaker in the Integrated Power Mod- ule (IPM). If all of the LEDs are inoperative in the DDM, be certain to diagnose the power window sys- tem before replacing the switch unit. (Refer to 8 - ELECTRICAL/POWER WINDOWS - DIAGNOSIS AND TESTING). If only one LED in the DDM is inoperative, replace the faulty DDM. If the driver side front door power window operates in a normal manner, but the Auto-Down feature is inoperative, replace the faulty DDM. Refer to the appropriate wir- ing information. The wiring information includes wir- ing 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.
(1) Disconnect and isolate the battery negative cable. Remove the DDM from the door trim panel. Disconnect the door wire harness connectors for the DDM from the DDM connector receptacles.
(2) Test the DDM switch continuity. See the Driver Door Module Switch Tests chart to determine if the continuity is correct for the suspect switches in each switch position (Fig. 2) and/or (Fig. 3). If not OK, replace the faulty DDM as required.
Fig.2DriverDoorModuleConnectorC1Receptacle
DR DRIVER DOOR MODULE (Continued)
POWER LOCKS
8N - 7
RIGHT FRONT DOWN
LEFT FRONT DOWN RIGHT FRONT UP
DRIVER DOOR MODULE SWITCH TESTS PINS 9 & 12
PINS 3 & 9
PINS 6 & 9
PINS 4 & 9
PINS 9 & 10
PINS 2 & 9
PINS 1 & 9
POWER WINDOW LOCKOUT SWITCHLEFT REAR DOWN RIGHT REAR UP
RIGHT REAR DOWN
LEFT REAR UP
SWITCH POSITION
OFF (SWITCH BUTTON
CONTINUITY BETWEEN PIN 9 OF CONNECTOR
RAISED - NOT DEPRESSED)
C-1 & PIN 8 OF CONNECTOR C-2
REMOVAL
(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 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
