Power Window System: Diagnosis Chevrolet Malibu V facelift

TROUBLE SHOOTING

Note. To prevent misdiagnosis, ensure that no Diagnostic Trouble Codes (DTCs) exist. See appropriate BODY CONTROL MODULES article.

PRELIMINARY INSPECTION

Check PWR WNDWS (25-amp) circuit breaker. Ensure grounds are clean and tight. Check for broken or partially broken wire inside insulation which would cause system failure but prove good in continuity/voltage check. If only master power window switch operates windows, ensure lock-out is not engaged (4-door). Ensure proper installation of aftermarket electronic equipment that may affect integrity of other systems. If problem does not exist, repair by symptom. See SYSTEM TESTS .

DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK

1. Connect scan tool to Data Link Connector (DLC). DLC is located under instrument panel, right of steering column. If scan tool powers up, go to next step. If scan tool does not power up, perform appropriate diagnostic procedure. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.
2. Turn ignition switch to RUN position. Attempt to establish communication with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, diagnose communication problem. See appropriate BODY CONTROL MODULES article.
3. Select display DTC function for BCM. If scan tool displays DTCs, go to next step. If no DTCs are displayed, diagnose by symptom. See «SYSTEM TESTS»(ref-129684-S06726223782001111700000) .
4. If scan tool does not display DTCs that begin with "U", go to next step. If scan tool displays DTCs that begin with "U", diagnose communication problem. See appropriate BODY CONTROL MODULES article.
5. If scan tool does not display DTCs B1000 or B1001, go to next step. If scan tool displays DTCs B1000 or B1001, diagnose body control system. See appropriate BODY CONTROL MODULES article.
6. If scan tool does not display DTCs B1369, B1374 or B1379, go to next step. If scan tool displays DTCs B1369, B1374 or B1379, diagnose body control system. See appropriate BODY CONTROL MODULES article.
7. If scan tool does not display DTCs that begin with "P", go to next step. If scan tool displays DTCs that begin with "P", diagnose appropriate system for DTC retrieved. See appropriate BODY CONTROL MODULES article.
8. If scan tool displays DTC B3127, B3128, B3132, B3133, B3137 or DTC B3138, diagnose appropriate system for DTC retrieved. See appropriate POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS article. If scan tool does not display DTC B3127, B3128, B3132, B3133, B3137 or B3138, diagnose by symptom. See «SYSTEM TESTS»(ref-129684-S06726223782001111700000) .

TEST A: ALL WINDOWS INOPERATIVE

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(ref-129684-S03676705252001111900000) under SELF-DIAGNOSTIC SYSTEM.
2. Operate power windows. If power windows do not operate properly, go to next step. If all power windows operate properly, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
3. Disconnect master power window switch 6-pin harness connector C2. Turn ignition switch to RUN position. Connect a test light between ground and master power window switch harness connector C2 terminal "C" (Brown wire). (Scheme 1) If test light illuminates, go to next step. If test light does not illuminate, go to step 5.
4. Connect test light between master power window switch harness connector C2 terminals "A" (Black wire) and "C" (Brown wire). If test light illuminates, go to step 6. If test light does not illuminate, go to step 9.
5. Check for open or poor connection in Brown wire between right side instrument panel junction block and master power window switch. See «WIRING DIAGRAMS»(ref-129684-S24696426732001111700000). If problem does not exist, go to step 7. If problem exists, repair as necessary and go to step 10.
6. Check for poor connection or loose terminals at master power window switch. If problem does not exist, go to step 8. If problem exists, repair as necessary and go to step 10.
7. Repair short to ground in Brown wire between right instrument panel wiring harness junction block harness connector C3 terminal A8 and master power window switch harness connector C2 terminal "C". See «WIRING DIAGRAMS»(ref-129684-S24696426732001111700000). After repair, go to step 10.
8. Replace master power window switch. After repair, go to step 10.
9. Repair open in Black wire between master power window switch assembly harness connector C2 terminal "A" and ground. Ground point is located on left side of passenger compartment, behind rocker panel. See «WIRING DIAGRAMS»(ref-129684-S24696426732001111700000). After repair, go to next step.
10. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step 2.

Scheme 1

TEST B: LEFT FRONT WINDOW INOPERATIVE

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(ref-129684-S03676705252001111900000) under SELF-DIAGNOSTIC SYSTEM.
2. Operate power windows. If power windows do not operate properly, go to next step. If all power windows operate properly, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
3. Disconnect driver's side window motor 2-pin harness connector. Turn ignition switch to RUN position. Connect test light between driver's side window motor harness connector terminals "A" (Gray wire) and "B" (Dark Blue wire). Using master power window switch, press driver's side to up and down positions. If test light illuminates when master power window switch is in up or down position, go to next step. If test light does not illuminate when master power window switch is in up or down position, go to step 5 .
4. If test light illuminated when master power window switch is pressed to up and down positions, go to step 6 . If test light does not illuminate when master power window switch is pressed to up and down positions, go to step 8 .
5. Check for open in appropriate wire between master power window switch and driver's side window motor. If problem does not exist, go to step 7 . If problem exists, repair as necessary and go to step 11 .
6. Check for poor connection or loose terminals at driver's side window motor harness connector. If problem does not exist, go to step 10 . If problem exists, repair as necessary and go to step 11 .
7. Check for poor connection or loose terminals at master power window switch assembly. If problem does not exist, go to step 9 . If problem exists, repair as necessary and go to step 11 .
8. Repair short to ground in appropriate wire between master power window switch and driver's side window motor. After repair, go to step 11 .
9. Replace master power window switch. After repair, go to step 11 .
10. Replace driver's side window motor. After repair, go to next step.
11. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step 2 .

TEST C: PASSENGER POWER WINDOW INOPERATIVE

Note. Test includes testing for all right front, right rear and left rear power windows.

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(ref-129684-S03676705252001111900000) under SELF-DIAGNOSTIC SYSTEM.
2. Turn ignition switch to RUN position. Ensure master power window switch lock-out button is not engaged. Verify one or more passenger power widows are suspect. If one or more passenger power windows are suspect, go to next step. If all passenger power windows operate properly, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
3. If suspect power window operates from master power window switch assembly, go to next step. If suspect power window does not operate from master power window switch, go to step 5.
4. Disconnect suspect power window switch 8-pin harness connector. Connect test light to ground and probe suspect power window switch harness connector terminal "D" (Dark Blue wire). (Scheme 1) If test light does not illuminate, go to step 9. If test light illuminates, go to step 13.
5. Disconnect suspect power window switch 8-pin harness connector. Connect test light between window motor up circuit and window motor down circuit at suspect power window switch harness connector. Using master power window switch, press appropriate window switch to up and down positions. If test light illuminates when switch is in UP or DOWN position, go to next step. If test light does not illuminate when switch is in UP or DOWN position, go to step 10.
6. If test light illuminated when suspect switch was in both up and down positions, go to next step. If test light did not illuminate when suspect switch was in both up and down positions, go to step 11.
7. Reconnect suspect power window switch. Disconnect suspect power window motor. Connect test light between power window motor harness connector terminals "A" (Dark Blue wire) and "B" (Brown wire). Press window switch to up and down positions. If test light illuminates, go to next step. If test light does not illuminate, go to step 12.
8. If test light illuminated when suspect power window switch was in up and down positions, go to step 14. If test light does not illuminate when suspect power window switch was in up and down positions, go to step 16.
9. Check for open in Dark Blue wire between suspect power window switch and master power window switch. If problem does not exist, go to step 15. If problem exists, repair as necessary and go to step 20.
10. Check for an open in up and down signal circuits between master power window switch and suspect power window switch. If problem does not exist, go to step 15. If problem exists, repair as necessary and go to step 20.
11. Check for a short to ground in up and down signal circuits between master power window switch and suspect power window switch. If problem does not exist, go to step 15. If problem exists, repair as necessary and go to step 20.
12. Check for an open in up and down control circuits (Dark Blue and Brown wires) between suspect power window switch and power window motor. If problem does not exist, go to next step. If problem exists, repair as necessary and go to step 20.
13. Check for poor connections or loose terminals at suspect power window switch. If problem does not exist, go to step 18. If problem exists, repair as necessary and go to step 20.
14. Check for poor connections or loose terminals at suspect power window motor. If problem does not exist, go to step 17. If problem exists, repair as necessary and go to step 20.
15. Check for poor connections or loose terminals at master power window switch. If problem does not exist, go to step 19. If problem exists, repair as necessary and go to step 20.
16. Repair short to ground in appropriate wire between power window switch and power window motor. After repair, go to step 20.
17. Replace power window motor. After repair, go to step 20.
18. Replace passenger power window switch. After repair, go to step 20.
19. Replace master power window switch. After repair, go to next step.
20. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step 2.

TEST D: EXPRESS DOWN FUNCTION INOPERATIVE

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(ref-129684-S03676705252001111900000) under SELF-DIAGNOSTIC SYSTEM.
2. Operate driver's side power window. If power window operates normally and express down feature does not, go to next step. If power window and express down feature operate normally, check for an intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
3. Replace master power window switch. After repair, go to next step.
4. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step 2 .

TEST E: LOCK-OUT FUNCTION INOPERATIVE

1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See «DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK»(ref-129684-S03676705252001111900000) under SELF-DIAGNOSTIC SYSTEM.
2. Verify lock-out function is inoperative. If lock-function does not operate, go to next step. If lock-out function operates, check for an intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
3. Disconnect master power window switch 6-pin harness connector C2. Check for an open, short to ground or short to voltage in lock-out signal circuit (Dark Blue wire). See «WIRING DIAGRAMS»(ref-129684-S24696426732001111700000) . If problem does not exist, go to next step. If problem exists, repair as necessary and go to step 5 .
4. Replace master power window switch. After repair, go to next step.
5. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step 2 .