Power Window System Cadillac DeVille Concours I final

DESCRIPTION

Power window system uses a permanent-magnet motor to operate each window. Motor operation is controlled by a master switch assembly alone, or in combination with individual window switches. Window is raised or lowered depending on polarity of current applied to window motor.

Some models use a control module to access an express mode of operation. When left front window switch pushed past first detent, module activates relay to apply full battery voltage to window motor. This provides current to quickly and fully open window. If window switch is pushed to UP position during express down mode, window will stop. When window reaches full down position, motor stall is detected by master switch assembly, cutting off power to motor.

Rear window lock-out feature disables rear window switches, allowing only master switch assembly operation of rear windows.

OPERATION

When ignition switch is in RUN position or retained accessory power is activated, power for window system is supplied to master switch assembly through fuse block circuit breaker to accessory time delay relay. When any switch is operated, power is applied through single window switch to motor, driving window motor in either direction to either raise or lower window. Each motor is protected by an internal circuit breaker which will reset after switch is released (voltage removed).

COMPONENT LOCATIONS

COMPONENT LOCATIONS

DeVille

Door window adjustment should be performed if the following conditions exist

1. If any beveled edge of window is visible with window in full up position, window should be adjusted up/down at inner panel cam.
2. If window does not fit frame, or if up/down adjustments were made, window should be adjusted fore/aft at widow sash.
3. If window rattles in full down position or if any other adjustments were made, lower run channels should be adjusted fore/aft. Adjustment reasons may vary. Adjustment procedures should always be performed in the following sequence. (Scheme 1)

1. Disable side air bags. See appropriate AIR BAG RESTRAINT SYSTEMS article. Remove window switch assembly. See «WINDOW SWITCH»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Remove door trim plate. Gently pull inward to disengage trim fastener retaining outside mirror trim cover. Remove 2 screws from door panel. Remove door panel by lifting up and out. Disconnect electrical connectors.
2. Remove speaker (if equipped). Remove side door inflatable restraint side impact inflator module and side impact sensing module. See appropriate AIR BAG RESTRAINT SYSTEMS article. Remove water deflector by removing fasteners and peel deflector from inner panel.
3. Lower window slightly to relieve excess pressure on inner panel cam. Loosen inner panel cam bolts. (Scheme 1) Front door has 2 bolts and rear door has 3. Adjust window cam up/down as necessary.
4. Tighten inner panel cam bolts to 97 INCH lbs. (11 N.m). Verify proper up/down adjustment by raising window to full up position. Check fore/aft adjustment of window to window frame. Loosen window sash bolt through access hole in door inner panel. (Scheme 1)
5. Position window fore/aft in window frame as necessary. Tighten bolt to 97 INCH lbs. (11 N.m). Cycle window several times to verify proper up/down and full up fore/aft adjustment. Lower window to full down position. Verify window rests inside of front lower run channel and rear lower run channel.
6. Loosen lower run channel adjustment bolt(s). Fit run channel(s) against window and tighten bolts to 97 INCH lbs. (11 N.m). Cycle window to ensure no binding occurs. Install water deflector and door trim panel.

Scheme 1

Eldorado

1. Remove switch plates. See «WINDOW SWITCH»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Remove screw in switch plate opening. Insert flat-blade tool between upper rear corner of carpet attached to door trim panel. Disengage fastener, and fold back carpet.
2. Remove speaker (if equipped). Remove water deflector by removing fastener and peel deflector from inner panel.
3. To adjust parallelism, raise window to 1/2 inch (13 mm) below full up position. Check parallelism on upstroke of window motion. Gap from horizontal edge of window to weatherstrip should be even at front and rear of window. Adjust parallelism as needed by loosening and repositioning of inner cam bolts. Tighten inner panel cam bolts to 97 INCH lbs. (11 N.m).
4. Window fore/aft adjustment is necessary if space between window and "B" pillar weatherstrip retainer is not 1/4 inch (6-7 mm) with window up and door closed. To adjust, loosen regulator to window sash channel bolts and reposition window. Recheck adjustment. Readjust as necessary. Tighten sash channel bolts to 97 INCH lbs. (11 N.m).
5. To Adjust window upstop, remove roof rail weatherstrip. Insert one inch (2.6 cm) wide roll of masking tape in weatherstrip retainer. (Scheme 2)
6. Window should be in full up position and door closed. Measure gap between edge of weatherstrip retainer assembly and top edge of window. (Scheme 2)
7. Gap should be 1/8 inch (3 mm). If gap is not within specification, figure amount of movement needed and adjust upstops accordingly. Window upstop adjusters are color coded. Front upstop adjuster is Neutral in color, rear adjuster is Black. One full turn of adjuster bolt equals one mm of glass movement. If facing door inner panel, clockwise rotation moves glass up, counterclockwise moves glass down. Lower window slightly to relieve pressure before moving adjusters.
8. Reinstall roof rail weatherstrip, water deflector, speaker and door trim panel. Recheck adjustment. Readjust if necessary.

Scheme 2

TROUBLE SHOOTING

Note. Left front window switch is referred to as master switch assembly.

Note. To prevent misdiagnosis, ensure no Diagnostic Trouble Codes (DTCs) exist. See BODY CONTROL MODULES - DEVILLE & ELDORADO article.

SYSTEM CHECK

1. Momentarily press left front window switch on master switch assembly to DOWN position, past first detent. Left front window should open fully. To stop window, press left front window switch to UP position.
2. Press left front window switch on master switch assembly to UP and DOWN positions, stopping at first detent. Left front window should move up and down. Window should stop when switch is released.
3. Operate each window up and down from master switch assembly. Each window should move up and down. Operate each window from individual window switch. Each individual window should move up and down.
4. Place rear lock-out switch in LOCK position, repeat step 3) . Rear power windows should not operate from individual switches, but operate from master switch assembly. If problem exists with power window system, go to «PRELIMINARY INSPECTION»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system__preliminary-inspection) .

PRELIMINARY INSPECTION

Note. Check operation of Retained Accessory Power (RAP) system. If problem exists, repair as necessary. See appropriate wiring diagram in POWER DISTRIBUTION article in WIRING DIAGRAMS.

Check WINDOWS circuit breaker. Ensure power windows are free of mechanical binding. Ensure aftermarket electronic equipment that may affect integrity of other systems is installed correctly (if equipped). Check for poor terminal contact at master switch assembly. If no problem is found, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.

SYSTEM TESTS

Note. Prior to testing, perform SYSTEM CHECK under TROUBLE SHOOTING.

Note. To prevent damage to terminal, connector Test Adaptor Kit (J 35616-A) must be used whenever a diagnostic procedure requires checking or probing a terminal. To locate and identify terminals, see WIRING DIAGRAMS .

SYMPTOM INDEX

TEST 1: ALL WINDOWS INOPERATIVE

1. Turn ignition switch to RUN position. Using a test light connected to ground, backprobe master switch assembly connector Pink wire terminal. If test light illuminates, go to step 3 . If test light does not illuminate, go to next step.
2. Check for open or short in Pink wire between accessory time delay relay and master switch assembly. If circuit is okay, check operation of accessory time delay relay and related circuits. See appropriate wiring diagram in POWER DISTRIBUTION article in WIRING DIAGRAMS. Recheck system.
3. Using a test light, backprobe between master switch assembly connector Pink wire and Black wire terminals. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between master switch assembly and ground. Recheck system.
4. Check master switch assembly connector for poor terminal contact. If terminal contact is okay, replace master switch assembly. Recheck system.

TEST 2: LEFT FRONT WINDOW IS INOPERATIVE

1. Turn ignition switch to RUN position. Using a test light, backprobe between master switch assembly connector C2 Brown wire and Dark Blue wire terminals. While observing test light, press left front window switch on master switch assembly to UP and DOWN positions. If test light illuminates in both positions, go to next step. If test light does not illuminate in both positions, check master switch assembly connector for poor terminal contact. If terminal contact is okay, replace master switch assembly. Recheck system.
2. Disconnect left window motor connector. Connect test light between left window motor connector Dark Blue wire and Brown wire terminals. While observing test light, press left front window switch on master switch assembly to UP and DOWN positions. If test light illuminates in both positions, go to next step. If test light does not illuminate in both positions, repair open in Brown wire or Dark Blue wire between master switch assembly and left front power window motor. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system) . Recheck system.
3. Check left front window motor connector for poor terminal contact. If terminal contact is okay, replace left front window motor. Recheck system.

TEST 3: RIGHT FRONT WINDOW IS INOPERATIVE

1. Disconnect right front window switch connector. Turn ignition switch to RUN position. Using DVOM, measure voltage between right front window switch connector terminal "H" (Tan wire) and battery voltage. (Scheme 3) If 10-15 volts does not exist, go to next step. If 10-15 volts exists, go to step 5.
2. Check for open in Tan wire between right front window switch connector and master switch assembly. If circuit is open, go to next step. If circuit is okay, go to step 4.
3. Repair open in Tan wire and recheck system.
4. Replace master switch assembly and recheck system.
5. Using DVOM, measure voltage between right front window switch connector terminal "H" (Tan wire) and battery voltage. Press and hold right front window switch on master switch assembly in DOWN position. If 10-15 volts exists, go to next step. If 10-15 volts does not exist, go to step 8.
6. Check for short to ground in Tan wire between right front window switch connector and master switch assembly. If circuit is shorted, go to next step. If circuit is okay, go to step 11.
7. Repair short to ground in Tan wire and recheck system.
8. Using DVOM, check voltage between right front window switch connector terminal "D" (Light Blue wire) and battery voltage. If 10-15 volts does not exist, go to next step. If 10-15 volts exists, go to step 11.
9. Check for open in Light Blue wire between right front window switch connector and master switch assembly. If circuit is open, go to next step. If circuit is okay, go to step 4.
10. Repair open in Light Blue wire and recheck system.
11. Using DVOM, check voltage between right front window switch connector terminal "D" (Light Blue wire) and battery voltage. Press and hold right front window switch on master switch assembly in UP position. If 10-15 volts exists, go to next step. If 10-15 volts does not exist, go to step 14.
12. Check for short to ground in Light Blue wire between right front window switch connector and master switch assembly. If circuit is shorted to ground, go to next step. If circuit is okay, go to step 4.
13. Repair short to ground in Light Blue wire and recheck system.
14. Using DVOM, check voltage between right front window switch connector terminal "F" (Pink wire on Eldorado; Dark Blue wire on DeVille) and ground. If 10-15 volts does not exist, go to next step. If 10-15 volts exists, go to step 16.
15. Repair open or short to ground in Pink wire or Dark Blue wire. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Recheck system.
16. Connect right front window switch connector. Disconnect right front window motor connector. Using DVOM, check voltage between right front window motor connector Brown wire and Dark Blue wire terminals. Press right front window switch to UP and DOWN positions. If 10-15 volts exists when switch is pressed, go to next step. If 10-15 volts does not exist when switch is pressed, go to step 18.
17. Replace window motor and recheck system.
18. Check for open or short to ground in Brown wire between right front window switch connector and motor. If circuit is faulty, go to next step. If circuit is okay, go to step 20.
19. Repair open or short to ground in Brown wire and recheck system.
20. Check for short to ground in Dark Blue wire between right front window switch connector and motor. If circuit is faulty, go to next step. If circuit is okay, go to step 22.
21. Repair open or short to ground in Dark Blue wire and recheck system.
22. Replace right front window switch and recheck system.

Scheme 3

TEST 4: LEFT REAR WINDOW IS INOPERATIVE

1. Using a DVOM, backprobe between left rear window switch connector terminals "A" (Brown wire) and "E" (Dark Blue wire). (Scheme 3) Press left rear window switch at master window switch assembly to UP and DOWN position. If 10-15 volts does not exist in both switch positions, go to next step. If 10-15 volts exists in both switch positions, go to step 7.
2. Using a DVOM, backprobe between left rear window switch connector terminals "F" (Dark Blue wire) and "D" (Dark Green wire). Backprobe between left rear switch connector terminals "F" (Dark Blue wire) and "H" (Purple wire). If 10-15 volts does not exist between both sets of terminals, go to next step. If 10-15 volts exists between both sets of terminals, go to step 4.
3. Using a DVOM, backprobe between master window switch assembly connector C1 terminals "C" (Dark Green wire) and "H" (Purple wire). Press left rear window switch on master window switch assembly to UP and DOWN positions. If 10-15 volts exists in both switch positions, go to step 5. If 10-15 volts does not exist in both switch positions, go to step 6.
4. Check left rear window switch connector. Clean and repair as necessary. If no problem is found, replace left rear window switch. Recheck system.
5. Repair open in Dark Green wire or Purple wire between left rear window switch and master window switch assembly. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Recheck system.
6. Check master window switch assembly connector. Clean and repair as necessary. If no problem is found, replace master window switch assembly. Recheck system.
7. Using a DVOM, backprobe between left rear window motor connector Brown wire and Dark Blue wire terminals. Press left rear window switch to UP and DOWN positions. If 10-15 volts exists in both switch positions, go to next step. If 10-15 volts does not exist in both switch positions, go to step 9.
8. Check left rear window motor connector. Clean and repair as necessary. If no problem is found, replace left rear window motor. Recheck system.
9. Repair open or short to ground in Dark Blue wire or Brown wire between left rear window switch and motor. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Recheck system.

TEST 5: RIGHT REAR WINDOW IS INOPERATIVE

1. Using a DVOM, backprobe between right rear window switch terminals "A" (Brown wire) and "E" (Dark Blue wire). (Scheme 3) Press right rear window switch on master window switch assembly to UP and DOWN positions. If 10-15 volts does not exist in both switch positions, go to next step. If 10-15 volts exists in both switch positions, go to step 7.
2. Using a DVOM, backprobe between right rear window switch terminals "F" (Dark Blue wire) and "D" (Light Green wire). Backprobe between right rear window switch terminals "F" (Dark Blue wire) and "H" (Purple wire). If 10-15 volts does not exist between both sets of terminals, go to next step. If 10-15 volts exists between both sets of terminals, go to step 4.
3. Using a DVOM, backprobe master window switch assembly connector C1 terminals "E" (Light Green wire) and "F" (Purple wire). Press right rear window switch on master window switch assembly to UP and DOWN positions. If 10-15 volts exists in both switch positions, go to step 5. If 10-15 volts does not exist in both switch positions, go to step 6.
4. Check right rear window switch connector. Clean and repair as necessary. If no problem is found, replace right rear window switch. Recheck system.
5. Repair open in Light Green wire or Purple wire between right rear window switch and master window switch assembly. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Recheck system.
6. Check master window switch assembly connector. Clean and repair as necessary. If no problem is found, replace master window switch assembly. Recheck system.
7. Using a DVOM, backprobe between right rear window motor connector Brown wire and Dark Blue wire terminals. Press right rear window switch to UP and DOWN positions. If 10-15 volts exists in both switch positions, go to next step. If 10-15 volts does not exist in both switch positions, go to step 9.
8. Check right rear window motor connector. Clean and repair as necessary. If no problem is found, replace right rear window motor. Recheck system.
9. Repair open or short to ground in Dark Blue wire or Brown wire between right rear window switch and motor. See «WIRING DIAGRAMS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system). Recheck system.

WINDOW MOTOR

Removal & Installation

1. On DeVille, deactivate air bag system before performing any service operation. See appropriate AIR BAG RESTRAINT SYSTEMS article. Remove window switch assembly. See «WINDOW SWITCH»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system) . Remove door trim plate. Gently pull inward to disengage trim fastener retaining outside mirror trim cover. Remove 2 screws from door panel. Remove door panel by lifting up and out. Disconnect electrical connectors. Remove speaker (if equipped). Remove side door inflatable restraint side impact inflator module and side impact sensing module. See appropriate AIR BAG RESTRAINT SYSTEMS article. Remove water deflector by removing fastener and peel deflector from inner panel.
2. On Eldorado, remove switch plates. See «WINDOW SWITCH»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system) . Remove screw in switch plate opening. Insert flat-blade tool between upper rear corner of carpet attached to door trim panel. Disengage fastener and fold back carpet. Gently pull inward to disengage trim fastener retaining outside mirror trim cover. Remove 2 screws from door panel. Remove door panel by lifting up and out. Disconnect electrical connectors. Remove speaker (if equipped). Remove water deflector by removing fastener and peel deflector from inner panel.
3. On all models, using Counterbalance Spring Tool (J-38864) and a breaker bar, release spring from regulator. Remove 3 window regulator motor nuts and motor. To install, reverse removal procedure. Adjust window as needed. See «ADJUSTMENTS»(/cadillac/deville-concours/i-final-1999-1999/remont/windows/#power-window-system) .

Using tape, cover front of switch and rear of door upholstery to prevent damage. Using a thin-blade screwdriver, pry between switch and door panel for spring clip. On DeVille, clip is at front of switch. On Eldorado, clip is at rear of switch. Press down on clip to release switch and pry outward. Disconnect electrical connector and remove switch. To install, reverse removal procedure.

See also:
• WINDOW SWITCH
• PRELIMINARY INSPECTION
• SYSTEM CHECK
• 1
• 2
• 3
• 4
• 5