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The dome lamp is controlled by the instrument cluster which provides power at all times, regardless of the ignition switch position. The ground circuit for the lamp is switched through the integral dome lamp switch or through the door ajar switches via the instrument cluster.
The dome lamp lens and bulb are available for ser- vice replacement. If either of the lamp switch or bulb holders is faulty or damaged, the dome lamp assem- bly must be replaced.
For service of the dome lamp bulb, refer to the
appropriate wiring information.
OPERATION
The dome lamp is activated by the door ajar switches via the instrument cluster. When all of the doors are closed, the lamp can be activated by depressing the lens. When any door is open, depress- ing the lamp lense to activate the lamp switch will not turn the lamps off.
The instrument cluster monitors the door ajar switches. When a door is open the instrument cluster grounds the low side drivers to turn on the lamp. Upon closing all doors, the instrument cluster ini- tiates a 30 second timer. If any of the doors are opened during the “time out” cycle, the instrument cluster will reset the timer until all doors are closed. The instrument cluster will faid to off when the doors are closed and the ignition is turned ON, the time out expires or the power locks are activated.
REMOVAL
(1) Using a small flat blade, pry the left side (driv- er’s side) of the dome lamp lens downward from dome lamp.
(2) Allow the lens to hang down (Fig. 1), this will disengage the right side of the lamp (passenger’s side) from the headliner.
(3) Pull the right side of the lamp down and slide
the lamp to the right (Fig. 2).
(4) Separate the lamp from the headliner. (5) Disengage dome lamp wire connector from body
wire harness.
(6) Separate dome lamp from vehicle.
Fig.1DomeLampLens
1 - HEADLINER 2 - CONNECTOR 3 - DOME LAMP 4 - LENS 5 - BULB
INSTALLATION
(1) Position dome lamp at headliner. (2) Connect dome lamp wire connector to body
wire harness.
(3) Position the left side of the lamp in the head-
liner opening and slide lamp to the left (Fig. 1).
(4) Push the right side of the lamp in the head- liner opening and push the lamp lens up into the lamp to secure (Fig. 1).
DR DOME LAMP (Continued)
LAMPS/LIGHTING - INTERIOR
8L - 25
(3) Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to access the instrument panel wire harness connector on the glove box lamp and switch (Fig. 3).
Fig.2DomeLamp
1 - SLIDE LAMP
DOOR AJAR SWITCH DESCRIPTION
The door ajar switches are integral to the door latches on each door. The switches close a path to ground for the Instrument Cluster when a door is opened.
The door ajar switches cannot be repaired and, if faulty or damaged, the door latch unit must be replaced. Refer to the Body section under Doors for the removal and installation procedure.
OPERATION
The door ajar switches close a path to ground for the Instrument Cluster when a door is opened. The passenger front door is connected in a parallel-series circuit between ground and the Instrument Cluster, while the driver side front door ajar switch is con- nected in series between ground and the Instrument Cluster to provide a unique input. The Instrument Cluster reads the switch status, then sends the proper switch status messages to other electronic modules over the Programmable Communications Interface (PCI) data bus network. The door ajar switches can be diagnosed using conventional diag- nostic tools and methods. Refer to the Body section under Doors for the Removal and Installation proce- dures.
GLOVE BOX LAMP/SWITCH REMOVAL
(1) Disconnect and isolate the battery negative
cable.
Fig.3GloveBoxLampandSwitchRemove/Install 1 - WIRE HARNESS CONNECTOR 2 - DASH BOARD 3 - GLOVE BOX SWITCH/LIGHT
(4) Disconnect the instrument panel wire harness connector from the connector receptacle on the back of the glove box lamp and switch unit.
(5) Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to depress the retaining tabs on the top and bottom of the glove box lamp and switch housing.
(6) While holding the retaining tabs depressed, push the glove box lamp and switch unit out through the hole in the mounting bracket on the instrument panel glove box opening upper reinforcement.
(7) Remove the glove box lamp and switch unit
from the instrument panel.
INSTALLATION
(1) Reach through the glove box opening and behind the glove box lamp and switch mounting bracket to feed the instrument panel wire harness connectors out through the hole in the glove box lamp and switch housing mounting bracket.
(2) Position the glove box lamp and switch unit to
the instrument panel.
(2) Remove the glove box from the instrument panel. (Refer to 23 - BODY/INSTRUMENT PANEL/ GLOVE BOX - REMOVAL) for the procedures.
(3) Reconnect the instrument panel wire harness connector to the connector receptacle on the back of the glove box lamp and switch unit.
LAMPS/LIGHTING - INTERIOR
8L - 26
GLOVE BOX LAMP/SWITCH (Continued)DR
(4) Push the glove box lamp and switch unit into the hole in the mounting bracket on the instrument panel glove box opening upper reinforcement.
(5) Install the glove box onto the instrument panel. (Refer to 23 - BODY/INSTRUMENT PANEL/GLOVE BOX - INSTALLATION) for the procedures.
(6) Close the glove box. (7) Reconnect the battery negative cable.
READING LAMP DESCRIPTION
The overhead console in this vehicle is equipped with two individual reading and courtesy lamps. The lamp lenses are the only visible components of these lamps. Each lamp has its own switch, bulb, reflector and lens within the overhead console.
The overhead console reading and courtesy lamps are controlled by the instrument cluster which pro- vides power at all times, regardless of the ignition switch position. The ground circuit for the lamps is switched through the integral reading and courtesy lamp switches or through the door ajar switches. Each lamp is designed and aimed to provide illumi- nation that will be directed only to that side of the vehicle on which the lamp is located.
The reading and courtesy lamp lenses and bulbs are available for service replacement. The reading and courtesy lamp switches, bulb holders and wiring are only available as part of the overhead console wire harness. If either of the lamp switches or bulb holders is faulty or damaged, the entire overhead console wire harness assembly must be replaced.
For service of the reading and courtesy lamp bulbs,
refer to the appropriate wiring information.
OPERATION
All reading and courtesy lamps located in the over- head console are activated by the door ajar switches via the instrument cluster. When all of the doors are closed, these lamps can be individually activated by depressing the corresponding lens. When any door is open, depressing the lamp lenses to activate the lamp switches will not turn the lamps off.
The instrument cluster monitors the door ajar switches. When a door is open the instrument cluster grounds the low side drivers to turn on the lamps. Upon closing all doors, the instrument cluster ini- tiates a 30 second timer. If any of the doors are opened during the “time out” cycle, the instrument cluster will reset the timer until all doors are closed. The instrument cluster will faid to off when the doors are closed and the ignition is turned ON, the time out expires or the power locks are activated.
REMOVAL
cable.
(1) Disconnect and isolate the battery negative
(2) Insert a long, narrow, flat-bladed tool between the curved (outboard) edge of the reading and cour- tesy lamp lens and the overhead console housing (Fig. 4).
(3) Gently pry inward and downward against the lens until the latch tab in the center of the outboard edge of the reading and courtesy lamp lens is disen- gaged from the overhead console housing.
(4) Pull firmly on the lens toward the outboard side of the vehicle to disengage the two pivot tabs on the inboard edge of the reading and courtesy lamp lens are disengaged from the overhead console housing.
(5) Remove the reading and courtesy lamp lens
from the overhead console housing.
Fig.4OverheadConsoleReadingLampBulb
Removal
1 - LENS 2 - FLAT BLADE 3 - CONSOLE
INSTALLATION
(1) Position the reading and courtesy lamp lens
onto the overhead console housing.
(2) Align the two pivot tabs on the inboard edge of the reading and courtesy lamp lens with the two pivot holes in the overhead console housing.
(3) Push firmly on the lens toward the inboard side of the vehicle to insert the two pivot tabs on the inboard edge of the reading and courtesy lamp lens into the two pivot holes in the overhead console hous- ing.
(4) Pivot the lens back up into position and press upward firmly until the latch tab in the center of the outboard edge of the reading and courtesy lamp lens snaps back into the overhead console housing.
(5) Reconnect the battery negative cable.
DR
MESSAGE SYSTEMS
8M - 1
MESSAGE SYSTEMS
TABLE OF CONTENTS
page
page
OVERHEAD CONSOLE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DIAGNOSIS AND TESTING - OVERHEADCONSOLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
STANDARD PROCEDURE
STANDARD PROCEDURE - READING/
COURTESY LAMP REPLACEMENT . . . . . . . . . 3
STANDARD PROCEDURE - MODULE LENS
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . 3
STANDARD PROCEDURE - MODULE LAMP
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . 3
STANDARD PROCEDURE - COMPASS
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DIAGNOSIS AND TESTING - ELECTRONICVEHICLE INFORMATION CENTER
. . . . . . . . . 8
STANDARD PROCEDURE - ELECTRONIC
VEHICLE INFORMATION CENTER PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . 8
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 10AMBIENT TEMP SENSOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
DIAGNOSIS AND TESTINGDIAGNOSIS AND TESTING - AMBIENT
CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . 3
TEMPERATURE SENSOR . . . . . . . . . . . . . . . 11
STANDARD PROCEDURE - COMPASS
DEMAGNETIZING . . . . . . . . . . . . . . . . . . . . . . 4
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT . . . . . . . . . . . . . . . . 4
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR CIRCUIT . . . . . . . . 11
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 11REMOVAL
OVERHEAD CONSOLE REMOVAL
. . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SPECIAL TOOLSOVERHEAD CONSOLE . . . . . . . . . . . . . . . . . . 6
COMPASS/MINI-TRIP COMPUTER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DIAGNOSIS AND TESTING - COMPASSMINI-TRIP COMPUTER . . . . . . . . . . . . . . . . . . 7
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 7ELECTRONIC VEHICLE INFO CENTER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OVERHEAD CONSOLE DESCRIPTION
Two different overhead consoles are available on DR models. The Electronic Vehicle Information Cen- ter (EVIC) (Fig. 1) or Compass Mini-Trip Computer (CMTC). All consoles are equipped with two reading/ courtesy lamps. The overhead console is mounted with screws and two snap clips to a molded plastic retainer bracket located above the headliner.
COMPASS DISPLAY
All the available overhead consoles on this model include Compass information. While in the compass/ the compass will display the temperature mode,
UNIVERSAL TRANSMITTER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 11
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DIAGNOSIS AND TESTING - UNIVERSALTRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . 12
STANDARD PROCEDURE
STANDARD PROCEDURE - ERASING
TRANSMITTER CODES . . . . . . . . . . . . . . . . . 12
STANDARD PROCEDURE - SETTING
TRANSMITTER CODES . . . . . . . . . . . . . . . . . 12
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13direction in which the vehicle is pointed using the eight major compass headings (Examples: north is N, northeast is NE). The self-calibrating compass unit requires no adjusting in normal use. The only cali- bration that may prove necessary is to drive the vehi- cle at 5 to 8 kilometers-per-hour (3 to 5 miles-per- hour), on level ground in a square shaped pattern. This will reorient the compass unit to its vehicle.
The compass unit also will compensate for magne- tism the body of the vehicle may acquire during nor- mal use. However, avoid placing anything magnetic directly on the roof of the vehicle. Magnetic mounts for an antenna, a repair order hat, or a funeral pro- cession flag can exceed the compensating ability of the compass unit if placed on the roof panel. Mag- netic bit drivers used on the fasteners that hold the
8M - 2 MESSAGE SYSTEMS OVERHEAD CONSOLE (Continued)
DR
ent temperature sensor, refer to Ambient Tempera- ture Sensor later in this section.
Following are general descriptions of the major components used in the overhead console. Refer to Wiring Diagrams for complete circuit schematics.
OPERATION
Refer to the vehicle Owner’s Manual for specific operation of each overhead console and its systems.
DIAGNOSIS AND TESTING - OVERHEAD CONSOLE
If the problem with the overhead console is an inaccurate or scrambled display, refer to SELF-DI- AGNOSTIC TEST later in this text. If the problem with the overhead console is incorrect Vacuum Fluo- rescent Display (VFD) dimming levels, use a DRB IIIt scan tool and the proper Diagnostic Procedures manual to test for the correct dimming message inputs being received from the Body Control Module (BCM) or Front Control Module (FCM) over the J1850 Programmable Communications Interface (PCI) data bus circuit. If the problem is a no-display condition, use the following procedure. For complete circuit diagrams, refer to Overhead Console in the Wiring Diagrams section of the service manual.
(1) Remove the overhead console from the head- liner (Refer to 8 - ELECTRICAL/OVERHEAD CON- SOLE - REMOVAL).
(2) Check for battery voltage at the overhead con- sole electrical connector. Refer to Wiring for connec- tor information. If OK, go to Step 3. If not OK, Check for battery voltage at the appropriate B(+) fuse in the integrated power module, repair the open fused B(+) circuit as required.
(3) Turn the ignition switch to the On position. Check the fused ignition switch output circuit(s) at the overhead console electrical connector. If OK, go to Step 4. If not OK, repair the open or shorted circuit as required.
(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 overhead console electrical connector and a good ground. There should be continuity. If OK, refer to SELF-DIAGNOSTIC TEST below for further diagnosis of the electronics module and the J1850
PCI data bus circuit. If not OK, repair the open ground circuit as required.SELF-DIAGNOSTIC TEST
A self-diagnostic test is built-in to the module to determine that the electronics module is operating properly, and that all the J1850 PCI data bus mes- sages are being received for proper operation. To per- form the self-diagnostic test proceed as follows:
Fig.1DROVERHEADCONSOLE–EVIC
overhead console assembly to the roof header can also affect compass operation. If the vehicle roof should become magnetized, the demagnetizing and calibration procedures found in this section may be required to restore proper compass operation.
TEMPERATURE DISPLAY
All the available overhead consoles on this model include Temperature information. The temperature displays the outside ambient temperature in whole degrees. The temperature display can be toggled from Fahrenheit to Celsius by selecting the desired U.S./Metric option from the customer programmable features. The displayed temperature is not an instant reading of conditions, but an average temperature. It may take the temperature display several minutes to respond to a major temperature change, such as driv- ing out of a heated garage into winter temperatures. When the ignition switch is turned to the Off posi- tion, the last displayed temperature reading stays in the electronic control modules, (CMTC, EVIC) mem- ory. When the ignition switch is turned to the On position again, the electronic module will display the memory temperature for one minute; then update the display to the current average temperature reading within five minutes.
The temperature function is supported by an ambi- ent temperature sensor. This sensor is mounted out- side the passenger compartment near the front and center of the vehicle, and is hard wired to the Front Control Module (FCM). The FCM sends temperature status messages to the module over the J1850 PCI data bus circuit. For more information on the ambi-
DR OVERHEAD CONSOLE (Continued)
MESSAGE SYSTEMS
8M - 3
(1) With the ignition switch in the Off position, simultaneously depress and hold the STEP and RESET buttons.
(2) Turn the ignition switch to the On position. (3) Following completion of the test, the electronics
module will display one of the following messages:
a. Pass Self Test (EVIC only), PASS (CMTC) -
The electronics module is working properly.
b. Failed Self Test (EVIC only), FAIL (CMTC) - The electronics module has an internal failure. The electronics module is faulty and must be replaced.
c. Failed J1850 Communication (EVIC only), BUS (CMTC) - The electronics module is not receiv- ing proper message input through the J1850 PCI data bus circuit. This can result from one or more faulty electronic modules in the vehicle, or from a faulty PCI data bus. The use of a DRB IIIt scan tool and the proper Diagnostic Procedures manual are required for further diagnosis.
STANDARD PROCEDURE - MODULE LENS REPLACEMENT
(1) Remove the overhead console (Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE - REMOV- AL).
(2) Remove the electronics module from the over- head console. Refer to the procedure later in this sec- tion.
(3) Unsnap the lens from the module and replace
lens as necessary.
STANDARD PROCEDURE - MODULE LAMP REPLACEMENT
(1) Remove the overhead console (Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE - REMOV- AL).
(2) Using a flat blade screwdriver twist out socket/
lamp (Fig. 2).
(3) Replace lamp(s) as necessary.
NOTE: If the compass functions, but accuracy is suspect, it may be necessary to perform a variation adjustment. This procedure allows the compass unit to accommodate variations in the earth’s mag- netic field strength, based on geographic location. Refer to Compass Variation Adjustment in the Stan- dard Procedures section of this group.
NOTE: If the compass reading displays dashes, and only “CAL” appears in the display, demagnetizing may be necessary to remove excessive residual magnetic fields from the vehicle. Refer to Compass Demagnetizing in the Standard Procedures section of this group.
STANDARD PROCEDURE
STANDARD PROCEDURE - READING/ COURTESY LAMP REPLACEMENT
(1) Open hood, disconnect and isolate the negative
battery cable.
(2) Remove the reading/courtesy lamp lens. Using a trim stick, gently pry the forward edge of the read- ing/courtesy lamp lens outward.
(3) Remove the reading/courtesy lamp socket from the overhead console. Rotate the reading/courtesy lamp socket one quarter turn counter clockwise.
(4) Remove the lamp and socket assembly. (5) Reverse the above procedure to install.
Fig.2TopofOverheadConsole
1 - OVERHEAD CONSOLE HOUSING 2 - EVIC/CMTC MODULE 3 - ILLUMINATION LAMPS 4 - MODULE RETAINING SCREWS
STANDARD PROCEDURE - COMPASS CALIBRATION
CAUTION: Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the compass. Do not use magnetic tools when ser- vicing the overhead console.
8M - 4 MESSAGE SYSTEMS OVERHEAD CONSOLE (Continued)
DR
feature automatically updates
The electronic compass unit features a self-cali- brating design, which simplifies the calibration pro- cedure. This the compass calibration while the vehicle is being driven. This allows the compass unit to compensate for small changes in the residual magnetism that the vehicle may acquire during normal use. If the compass read- ings appear to be erratic or out of calibration, per- form the following calibration procedure. Also, new service (EVIC, CMTC) must have their compass calibrated using this procedure. Do not attempt to calibrate the com- pass near large metal objects such as other vehicles, large buildings, or bridges; or, near overhead or underground power lines.
replacement Electronic Modules
NOTE: Whenever the compass is calibrated manu- ally, the variance number must also be reset. Refer to Compass Variation Adjustment in this group.
To calibrate the compass manually proceed as fol-
lows:
(1) Turn the ignition switch to the On position. If the compass/temperature data is not currently being displayed, momentarily depress and release the C/T push button to reach the compass/temperature dis- play.
(2) Depress the RESET push button and hold the button down until “CAL” appears in the display. This takes about ten seconds, and appears about five sec- onds after “VAR = XX” is displayed.
(3) Release the RESET push button. (4) Drive the vehicle on a level surface, away from large metal objects and power lines, through three or more complete turns at between five and eight kilo- meters-per-hour (three and five miles-per-hour) in not less than 48 seconds. The “CAL” message will disappear from the display to indicate that the com- pass is now calibrated.
NOTE: If the “CAL” message remains in the display, either there is excessive magnetism near the com- pass, or the unit is faulty. Repeat the calibration procedure one more time.
NOTE: If the wrong direction is still indicated in the compass display, the area selected for calibration may be too close to a strong magnetic field. Repeat the calibration procedure in another location.
overhead console. Equivalent units must be rated as continuous duty for 110/115 volts and 60 Hz. They must also have a field strength of over 350 gauss at 7
millimeters (0.25 inch) beyond the tip of the probe.To demagnetize the roof panel and the overhead console forward mounting screw, proceed as follows: (1) Be certain that the ignition switch is in the Off position, before you begin the demagnetizing proce- dure.
(2) Connect the degaussing tool to an electrical outlet, while keeping the tool at least 61 centimeters (2 feet) away from the compass unit.
(3) Slowly approach the head of the overhead con- sole mounting screw with the degaussing tool con- nected.
(4) Contact the head of the screw with the plastic coated tip of the degaussing tool for about two sec- onds.
(5) With the degaussing tool still energized, slowly back it away from the screw. When the tip of the tool is at least 61 centimeters (2 feet) from the screw head, disconnect the tool.
(6) Place a piece of paper approximately 22 by 28
centimeters (8.5 by 11 inches), oriented on the vehicle lengthwise from front to rear, on the center line of the roof at the windshield header (Fig. 3). The pur- pose of the paper is to protect the roof panel from scratches, and to define the area to be demagnetized. (7) Connect the degaussing tool to an electrical outlet, while keeping the tool at least 61 centimeters (2 feet) away from the compass unit.(8) Slowly approach the center line of the roof panel at the windshield header, with the degaussing tool connected.
(9) Contact the roof panel with the plastic coated tip of the degaussing tool. Be sure that the template is in place to avoid scratching the roof panel. Using a slow, back-and-forth sweeping motion, and allowing 13 millimeters (0.50 inch) between passes, move the tool at least 11 centimeters (4 inches) to each side of the roof center line, and 28 centimeters (11 inches) back from the windshield header.
(10) With the degaussing tool
still energized, slowly back it away from the roof panel. When the tip of the tool is at least 61 centimeters (2 feet) from the roof panel, disconnect the tool.
(11) Calibrate the compass and adjust the compass variance (Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE - STANDARD PROCEDURE).
STANDARD PROCEDURE - COMPASS DEMAGNETIZING
A degaussing tool (Special Tool 6029) is used to demagnetize, or degauss, the overhead console for- ward mounting screw and the roof panel above the
STANDARD PROCEDURE - COMPASS VARIATION ADJUSTMENT
Compass variance, also known as magnetic decli- nation, is the difference in angle between magnetic north and true geographic north. In some geographic locations, the difference between magnetic and geo-
DR OVERHEAD CONSOLE (Continued)
MESSAGE SYSTEMS
8M - 5
(4) Release the RESET push button. “VAR =XX ” will remain in the display. “XX” equals the current variance zone setting.
(5) Depress and release the STEP push button to step through the zone numbers, until the zone num- ber for your geographic location appears in the dis- play.
(6) Depress and release the RESET push button to enter the displayed zone number into the EVIC/ CMTC module memory.
(7) Confirm that the correct directions are now
indicated by the compass.
REMOVAL
OVERHEAD CONSOLE REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the overhead console retaining screws,
located in the sunglass storage bin.
(3) Using your fingertips, grasp the sides of the overhead console and pull straight down evenly to disengage the two snap clips at the front of the unit. (4) Lower the overhead console far enough to
access the wire harness connectors.
(5) Disconnect the EVIC, CMTC electronic module and the reading/courtesy lamps electrical connectors. (6) Remove the overhead console from the vehicle.
Fig.3RoofDemagnetizingPattern
graphic north is great enough to cause the compass to give false readings. If this problem occurs, the compass variance setting may need to be changed.
To set the compass variance: (1) Using the Variance Settings map,
find your geographic location and note the zone number (Fig. 4).
(2) Turn the ignition switch to the On position. If the compass/temperature data is not currently being displayed, momentarily depress and release the C/T push button to reach the compass/temperature dis- play.
(3) Depress the RESET push button and hold the button down until “VAR = XX” appears in the display. This takes about five seconds.
INSTALLATION
(1) Position the overhead console in the vehicle. (2) Connect the EVIC, CMTC electronic module and the reading/courtesy lamps electrical connectors. (3) Grasp the sides of the overhead console and push straight up evenly to engage the two snap clips at the rear of the unit.
(4) Install the overhead console retaining screw, located in the front of console. Torque the screw to 1.2 N·m (10 in. lbs.).
(5) Connect the negative battery cable.
8M - 6 MESSAGE SYSTEMS OVERHEAD CONSOLE (Continued)
DR
SPECIAL TOOLS
OVERHEAD CONSOLE
Fig.4VarianceSettings
DEGAUSSINGTOOL#6029
COMPASS/MINI-TRIP COMPUTER DESCRIPTION
The Compass Mini-Trip Computer (CMTC)
is a module located in the overhead console. The CMTC is equipped with a mini-trip feature. The CMTC con- sists of a electronic control module with a vacuum fluorescent display (VFD) and function switches. The CMTC consists of a electronic module that displays compass, trip computer, and temperature features. Actuating the STEP push button will cause the CMTC to change mode of operation when the ignition is ON. Example: † Average miles per gallon (ECO) † Distance to empty (DTE) † Trip odometer (ODO)
RADIOFREQUENCYDETECTOR#9001
† Elapsed time (ET) † Off Actuating the C/T push button will cause the
CMTC to change to Compass/Temperature display.
MESSAGE SYSTEMS
8M - 7
DR COMPASS/MINI-TRIP COMPUTER (Continued) OPERATION
The Compass Mini-Trip Computer module in the overhead console has buttons used to select various functions. The CMTC selector buttons will not oper- ate until the ignition is in the RUN position.
When the ignition switch is first turned to the RUN position the CMTC display; † Returns to the last mode setting selected before the ignition was last switched OFF.
DIAGNOSIS AND TESTING - COMPASS MINI-TRIP COMPUTER
Compass Mini-Trip Computer (CMTC) data is obtained from other electronic modules (CCN, FCM and JTEC) on the J1850 Data Bus circuit. The CMTC will display dashes (- -) for any of the screens it did not receive the bus messages. The label corre- sponding to the missing information will be lit. If no compass mini-trip computer data is displayed, check the J1850 Data Bus circuit communications and the other modules.
Refer to Overhead Console Diagnosis and Testing for instructions on performing a CMTC module Self- Diagnostic Test. The DRB IIIt is recommended for checking the J1850 Data Bus circuit and the other modules. Perform the CMTC self diagnosis before replacing the CMTC module.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the overhead console from the headlin- er.(Refer to 8 - ELECTRICAL/OVERHEAD CON- SOLE - REMOVAL).
(3) Remove the screws holding Compass Mini-Trip
Computer module in the overhead console (Fig. 5).
(4) Disconnect the CMTC module electrical connec- tor. Depress the retaining tab and pull straight apart.
(5) Remove CMTC module from console assembly.
INSTALLATION
(1) Position the compass mini-trip computer mod-
ule in the overhead console.
(2) Install the screws holding the compass mini-
trip computer module in the overhead console. (3) Connect the module electrical connector. (4) Install the overhead console on the headlin- er(Refer to 8 - ELECTRICAL/OVERHEAD CON- SOLE - INSTALLATION).
(5) Connect the negative battery cable. (6) Check CMTC module function.
NOTE: If a new module has been installed, the com- pass will have to be calibrated and the variance set. Refer to Compass Variation Adjustment and Com-
Fig.5OVERHEADCONSOLEMODULEREMOVAL 1 - COMPASS MINI-TRIP COMPUTER MODULE 2 - OVERHEAD CONSOLE
pass Calibration in the Standard Procedures sec- tion of this group for the procedures.
ELECTRONIC VEHICLE INFO CENTER DESCRIPTION
The Electronic Vehicle Information Center (EVIC) is a module located in the overhead console on some models. The EVIC module features a large Vacuum Fluorescent Display (VFD) screen for displaying information, and back-lit push button switches labeled C/T (compass/temperature), RESET, STEP, and MENU.
The EVIC module contains a central processing unit and interfaces with other electronic modules in the vehicle over the Programmable Communications Interface (PCI) J1850 data bus circuit. The PCI data bus circuit allows the sharing of sensor information. This helps to reduce wire harness complexity, reduce internal controller hardware, and reduce component sensor current loads. At the same time, this system provides increased reliability, enhanced diagnostics, and allows the addition of many new feature capabil- ities.
The EVIC “Menu” push button provides the vehicle operator with a user interface, which allows the selection of several optional customer programmable individual preferences. electronic features to suit
8M - 8 MESSAGE SYSTEMS ELECTRONIC VEHICLE INFO CENTER (Continued)
DR
to ELECTRONIC VEHICLE INFORMA- Refer TION CENTER PROGRAMMING in the Standard Procedures section of this group for more information on the customer programmable feature options.
If the vehicle is equipped with the optional univer- sal transmitter transceiver, the EVIC will also dis- play messages and an icon indicating when the universal transmitter transceiver is being trained, which of the three transmitter buttons is transmit- ting, and when the transceiver is cleared.
Data input for all EVIC functions, including VFD dimming level, is received through the J1850 PCI data bus circuit. The EVIC module uses its internal programming and all of its data inputs to calculate and display the requested data. If the data displayed is incorrect, perform the self-diagnostic tests as described in this group. If these tests prove inconclu- sive, the use of a DRB IIIt scan tool and the proper Diagnostic Procedures manual are recommended for further testing of the EVIC module and the J1850
PCI data bus circuit.The EVIC module cannot be repaired, and is avail- able for service only as a unit. If any part is faulty or damaged, the complete EVIC module must be replaced.
OPERATION
The Electronic Vehicle Information Center is wired to both constant 12v and ignition switched sources of battery current so that some of its features remain operational at any time, while others may only oper- ate with the ignition switch in the On position. When the ignition switch is turned to the On position, the EVIC module display will return to the last function being displayed before the ignition was turned to the Off position.
The compass/temperature display is the normal EVIC display. With the ignition switch in the On position, momentarily depressing and releasing the C/T (compass/temperature) push button switch will cause the EVIC to return to the compass/tempera- ture display mode from any other mode. While in the compass/temperature display mode, momentarily depressing and releasing the Step push button will step through the available trip computer display options.
The EVIC trip computer features several functions that can be reset. The functions that can be reset are: average fuel economy, trip odometer and elapsed time. With the ignition switch in the On position and with one of the functions of the trip computer that can be reset currently displayed, depressing the Reset push button twice within three seconds will perform a global reset, and all of the trip computer information that can be reset will be reset to zero. With the ignition switch in the On position and the
is to be reset currently displayed, function that momentarily depressing and releasing the Reset push button once will perform a local reset, and only the value of the displayed function will be reset to zero. A global or local reset will only occur if the function currently displayed is a function that can be reset. The distance to service function can also be reset using the local reset method, but it will reset back to the Service Interval distance that is set in the EVIC programmable features mode. Refer to ELECTRONIC VEHICLE INFORMATION CEN- TER PROGRAMMING in the Standard Procedures section of this group for more information on setting the Service Interval.
For more information on the features, control func- tions and setting procedures for the EVIC module, see the owner’s manual in the vehicle glove box.
DIAGNOSIS AND TESTING - ELECTRONIC VEHICLE INFORMATION CENTER
Electronic Vehicle Information Center (EVIC) data is obtained from other electronic modules (CCN, FCM, JTEC) on the J1850 Data Bus circuit. The EVIC will display dashes (- -) for any of the screens it did not receive the bus messages. The label corre- sponding to the missing information will be lit. If no EVIC data is displayed, check the J1850 Data Bus circuit communications and the other modules. If the brightness level is improper check the J1850 Data Bus circuit.
Refer to Overhead Console Diagnosis and Testing for instructions on performing a EVIC module Self- Diagnostic Test. The DRB IIIt is recommended for checking the J1850 Data Bus circuit and other mod- ules. Perform the EVIC self diagnosis before replac- ing the EVIC module.
STANDARD PROCEDURE - ELECTRONIC VEHICLE INFORMATION CENTER PROGRAMMING
EVIC PROGRAMMING MODE
Some vehicles are equipped with a Electronic Vehi- cle Information Center (EVIC) equipped overhead console. The Electronic Vehicle Information Center (EVIC) provides the vehicle operator with a user interface, which allows the selection of several optional customer programmable electronic features to suit individual preferences. The EVIC must be placed into its programming mode in order to view or change the programmable features. To enter the EVIC programming mode and to view or change the selected programmable features options, proceed as follows:
(1) Turn the ignition switch to the On position.
DR ELECTRONIC VEHICLE INFO CENTER (Continued)
MESSAGE SYSTEMS
8M - 9
(2) Momentarily depress and release the Menu push button to step through the programmable fea- tures list. Each programmable feature and its cur- rently selected option will appear on the EVIC display in the sequence shown in the Programmable Features list that follows.
(3) Momentarily depress and release the Step push button to step through the available options for the programmable feature being displayed.
(4) The option that last appears in the display with a programmable feature before exiting the pro- gramming mode, becomes the newly selected pro- grammable feature option.
(5) The EVIC exits the programming mode and returns to its normal operating mode when the C/T push button is depressed or when the end of the pro- grammable features menu list is reached, whichever occurs first.
PROGRAMMABLE FEATURES
† LANGUAGE? - The options include English, Francaise, Deutsch, Italiana, or Espanol. The default is English. All EVIC display nomenclature, including the trip computer functions, warning messages and the programmable features appear in the selected language. † DISPLAY U.S. OR METRIC? - The options include U.S. and M. The default is U.S. This feature toggles the trip computer temperature, fuel economy and odometer display readings between U.S. and metric units of measure. † SERVICE INTV. = - The options include from 3200 to 12000 kilometers in 800 kilometer incre- ments (2000 to 6000 miles in 500 mile increments). The default is 12000 kilometers (6000 miles). The selected distance becomes the interval at which the Perform Service warning message will be displayed by the EVIC. If a new distance is selected, a second programmable feature appears, RESET SERVICE DISTANCE? - The options include No and Yes. The default is Yes. When Yes is selected, the accumulated distance since the last previous Perform Service warning message will be reset to zero because the service interval has been changed. When No is selected, the distance until the next Perform Service warning message is reduced by the accumulated dis- tance since the last previous message. † AUTO DOOR LOCKS? - The options include Yes and No. The default is Yes. When Yes is selected, all doors lock automatically when vehicle speed reaches 25 kilometers-per-hour (15 miles-per-hour). If YES is selected, a second programmable feature appears, AUTO UNLOCK ON EXIT? - The options again include Yes and No. The default is No. When Yes is selected, following each Auto Door Lock event all doors will automatically unlock when the driver
(RKE)
transmitter
if the vehicle is stopped and the door is opened, transmission gear selector is in Park or Neutral. The Auto Door Unlock event will only occur once follow- ing each Auto Door Lock event. † REMOTE UNLOCK - The options include Driver Door 1st and All Doors. The default is Driver Door 1st. When Diver Door 1st is selected, only the driver door unlocks when the Unlock button of the Remote Keyless Entry is depressed once. The Unlock button of the RKE trans- mitter must be depressed twice to unlock all doors. When All Doors is selected, all doors unlock when the Unlock button of the RKE transmitter is depressed once.† SOUND HORN ON LOCK? - The options include On and Off. The default is No. When Yes is selected, a short horn chirp will provide an audible confirmation when the RKE receiver recognizes a valid Lock signal from an RKE transmitter. When No is selected, no horn chirp will occur with the RKE Lock event. This feature may be selected indepen- dent of the FLASH LIGHTS WITH LOCKS? pro- grammable feature. † FLASH LIGHTS WITH LOCKS? - The options include Yes and No. The default is Yes. When Yes is selected, a single flash of the hazard warning lamps will provide an optical confirmation when the RKE receiver recognizes a valid Lock signal from an RKE transmitter, and two flashes of the same lamps will occur when the RKE receiver recognizes a valid Unlock signal from an RKE transmitter. When No is selected, no lamp flash will occur with the RKE Lock or Unlock event. This feature may be selected inde- pendent of the SOUND HORN ON LOCK? pro- grammable feature. † HEADLAMP DELAY = - The options include Off, 30 Sec, 60 Sec, and 90 Sec. The default is 90 Sec. When a time interval is selected, the headlamps will remain on for that length of time when the head- lamps are turned off after the ignition is turned off, or if the Auto mode is selected on vehicles with the Auto Headlamps option. When Off is selected, the headlamp delay feature is disabled.
† TRAIN REMOTE - When this
feature is selected the driver can choose to train up to four remote keyless entry transmitters. The options include Yes and No. The default is No. When Yes is selected and the MENU button is pressed the EVIC will display “PRESS REMOTE LOCK & UNLOCK THEN PRESS UNLOCK”, followed by a chime to indicate the training sequence can commence. You have approximately 30 seconds to train up to four transmitters, after each transmitter is trained a chime will sound indicating that the training was successful. If remote link to memory is “YES” , the first transmitter trained will be associated with
8M - 10 MESSAGE SYSTEMS ELECTRONIC VEHICLE INFO CENTER (Continued)
DR
memory setting 1 and the second transmitter trained will be associated with memory setting 2. Additional transmitters will not be associated with a memory setting. When you have finished training the trans- mitters, press the menu button again and the EVIC will display “TRAIN DONE “X” TRAINED. If no transmitters are trained within approximately 30
seconds the EVIC will display “TRAIN TIMEOUT”.REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the overhead console from the headlin- er.(Refer to 8 - ELECTRICAL/OVERHEAD CON- SOLE - REMOVAL).
Fig.6OVERHEADCONSOLEMODULEREMOVAL 1 - ELECTRONIC VEHICLE INFORMATION MODULE 2 - OVERHEAD CONSOLE
(3) Disconnect the EVIC module electrical connec- tor. Depress the retaining tab and pull straight apart.
(4) Remove the screws holding the EVIC module in
the overhead console (Fig. 6).
(5) Remove EVIC module from console assembly.
INSTALLATION
(1) Position the EVIC module in the overhead con-
sole.
(2) Install the screws holding the EVIC module in
the overhead console.
(3) Connect the EVIC module electrical connector.
(4) Install the overhead console on the headlin- er(Refer to 8 - ELECTRICAL/OVERHEAD CON- SOLE - INSTALLATION).
(5) Connect the battery negative cable. (6) Check EVIC module function.
NOTE: If a new EVIC module has been installed, the compass will have to be calibrated and the variance set. Refer to Compass Variation Adjustment and Compass Calibration in the Standard Procedures section of this group for the procedures.
AMBIENT TEMP SENSOR DESCRIPTION
Ambient air temperature is monitored by the over- head console. The ambient temperature messages are received from the Front Control Module (FCM) over the Programmable Communications Interface (PCI) J1850 data bus circuit. The FCM receives a hard wired input from the ambient temperature sensor (Fig. 7). The ambient temperature sensor is a vari- able resistor mounted to the underside of the hood, in the engine compartment.
Fig.7AmbientTemperatureSensor-Typical
For more information on the front control module, refer to Front Control Module in the Electronic Control Modules section of this manual. For complete circuit diagrams, refer to Wiring. The ambient tem- perature sensor cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.
OPERATION
The ambient
temperature sensor is a variable resistor that operates on a five-volt reference signal sent to it by the Front Control Module. The resis- tance in the sensor changes as temperature changes, changing the temperature sensor signal circuit volt- age to the Front Control Module. Based upon the resistance in the sensor, the Front Control Module senses a specific voltage on the temperature sensor signal circuit, which it is programmed to correspond to a specific temperature. The Front Control Module
DR AMBIENT TEMP SENSOR (Continued)
MESSAGE SYSTEMS
8M - 11
then sends the proper ambient temperature mes- 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
