Power Window System: Diagnosis Chevrolet Prizm I

PRELIMINARY INSPECTION

Check ECU-IG, GAUGE and POWER fuses. Ensure accessory power relay is securely mounted in its connector. Before replacing a component, inspect connector terminals for backed out pins, corroded or dirty connections and loose terminals. Check that ground connection is clean and tight. If no problem is found, repair by symptom. See SYMPTOM INDEX table under SYMPTOM TESTS.

SYMPTOM TESTS

Note. After performing appropriate system test(s) and making repairs, repeat SYSTEM CHECK to ensure system is operational.

SYMPTOM INDEX

TEST 1: ALL WINDOWS & POWER DOOR LOCKS INOPERATIVE

1. Check POWER fuse (30-amp) in junction block No. 2 for open. See «COMPONENT LOCATIONS»(ref-3332-S42589592332000042500000) . Check for defective accessory power relay. Repair as necessary. If fuse and relay are okay, go to next step.
2. Check for an open in White/Black wire between splice SP551 and ground. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000) and «COMPONENT LOCATIONS»(ref-3332-S42589592332000042500000) . Repair as necessary. If wire is okay, go to next step.
3. Check for faulty splice SP551. Repair as necessary.

TEST 2: ALL WINDOWS INOPERATIVE

1. Turn ignition switch to RUN position. Disconnect power window master switch connector. Using a test light connected to ground, backprobe power window master switch connector terminal No. 10 (Black wire). (Scheme 2) If test light does not come on, go to next step. If test light comes on, replace power window master switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
2. Check for an open in Black wire between power window master switch connector terminal No. 10 and splice SP551. Check for faulty splice SP551 or SP252. Check for faulty junction block No. 1. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000) and «COMPONENT LOCATIONS»(ref-3332-S42589592332000042500000). Repair as necessary.

Scheme 2

TEST 3: LEFT FRONT WINDOW INOPERATIVE

1. Disconnect left front power window motor connector. Turn ignition switch to ON position. Using a test light connected to ground, backprobe left front window motor connector terminal No. 2 (Green wire). Press left front power window switch on power window master switch to DOWN position. If test light comes on, go to next step. If test light does not come on, check for open in Green wire between left front window motor connector terminal No. 2 and power window master switch connector terminal No. 5. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000) . If Green wire is okay, go to step 3 . If Green wire is open, repair as necessary and retest system.
2. Using a test light connected to ground, backprobe left front window motor connector terminal No. 1 (Yellow wire). Press left front power window switch on power window master switch to UP position while observing test light. If test light comes on, go to step 4 . If test light does not come on, check for open in Yellow wire between window motor connector terminal No. 1 and power window master switch connector terminal No. 1. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000) . If Yellow wire is okay, go to next step. If Yellow wire is open, repair as necessary and retest system.
3. Replace power window master switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
4. Replace left front power window motor. See «WINDOW MOTOR/REGULATOR ASSEMBLY»(ref-3332-S20463662922000042500000) under REMOVAL & INSTALLATION.

TEST 4: RIGHT FRONT WINDOW INOPERATIVE

1. Disconnect right front power window switch connector. Turn ignition switch to RUN position. Using a test light connected to ground, backprobe right front window switch connector terminal No. 4 (Black wire). (Scheme 3) If test light comes on, go to next step. If test light does not come on, check for open in Black wire between right front window switch connector terminal No. 4 and splice SP252. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If Black wire is okay, replace splice SP252 as necessary.
2. Turn ignition switch to OFF position. Disconnect power window master switch connector. Check for open in Blue/White wire between right front window switch connector terminal No. 2 and power window master switch connector terminal No. 6. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If Blue/White wire is open, repair as necessary. If Blue/White wire is okay, go to next step.
3. Check for open in Green/Red wire between right front window switch connector terminal No. 5 and power window master switch connector terminal No. 14. If Green/Red wire is open, repair as necessary. If Green/Red wire is okay, go to next step.
4. Connect power window master switch connector. Turn ignition switch to ON position. Using a test light connected to ground, backprobe right front window switch connector terminal No. 2 (Blue/White wire). (Scheme 3) Press right front power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe right front window switch connector terminal No. 5 (Green/Red wire). Press right front power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace power window master switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
5. Connect right front power window switch. Using a test light connected to ground, backprobe right front window switch connector terminal No. 1 (Green wire). (Scheme 3) Press right front power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe right front window switch connector terminal No. 3 (Yellow wire). Press right front power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace right front power window switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
6. Disconnect right front power window motor connector. Check for open in Green wire between right front power window motor connector terminal No. 1 and right front power window switch connector terminal No. 1. If Green wire is okay, go to next step. If Green wire is open, repair as necessary.
7. Check for open in Yellow wire between right front power window motor connector terminal No. 2 and right front power window switch connector terminal No. 3. If Yellow wire is okay, replace right front power window motor. See «WINDOW MOTOR/REGULATOR ASSEMBLY»(ref-3332-S20463662922000042500000) under REMOVAL & INSTALLATION. If Yellow wire is open, repair as necessary.

Scheme 3

TEST 5: LEFT REAR WINDOW INOPERATIVE

1. Disconnect left rear power window switch connector. Turn ignition switch to RUN position. Using a test light connected to ground, backprobe left rear window switch connector terminal No. 4 (Black wire). (Scheme 3) If test light comes on, go to next step. If test light does not come on, check for open in Black wire between left rear window switch connector terminal No. 4 and splice SP252. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If wiring is okay, replace splice SP252 as necessary.
2. Turn ignition switch to OFF position. Disconnect power window master switch connector. Check for open in Blue/Black wire between left rear window switch connector terminal No. 2 and power window master switch connector terminal No. 12. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If Blue/Black wire is open, repair as necessary. If Blue/Black wire is okay, go to next step.
3. Check for open in Red/Green wire between left rear window switch connector terminal No. 5 and power window master switch connector terminal No. 9. If Red/Green wire is open, repair as necessary. If Red/Green wire is okay, go to next step.
4. Connect power window master switch connector. Turn ignition switch to ON position. Using a test light connected to ground, backprobe left rear window switch connector terminal No. 2 (Blue/Black wire). (Scheme 3) Press left rear power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe left rear window switch connector terminal No. 5 (Red/Green wire). Press left rear power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace power window master switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
5. Connect left rear power window switch. Using a test light connected to ground, backprobe left rear window switch connector terminal No. 1 (Green wire). (Scheme 3) Press left rear power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe left rear window switch connector terminal No. 3 (Yellow wire). Press left rear power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace left rear power window switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
6. Disconnect left rear power window motor connector. Check for open in Green wire between left rear power window motor connector terminal No. 2 and left rear power window switch connector terminal No. 1. If Green wire is okay, go to next step. If Green wire is open, repair as necessary.
7. Check for open in Yellow wire between left rear power window motor connector terminal No. 1 and left rear power window switch connector terminal No. 3. If Yellow wire is okay, replace left rear power window motor. See «WINDOW MOTOR/REGULATOR ASSEMBLY»(ref-3332-S20463662922000042500000) under REMOVAL & INSTALLATION. If Yellow wire is open, repair as necessary.

TEST 6: RIGHT REAR WINDOW INOPERATIVE

1. Disconnect right rear power window switch connector. Turn ignition switch to RUN position. Using a test light connected to ground, backprobe right rear window switch connector terminal No. 4 (Black wire). (Scheme 3) If test light comes on, go to next step. If test light does not come on, check for open in Black wire between right rear window switch connector terminal No. 4 and splice SP252. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If wiring is okay, replace splice SP252 as necessary.
2. Turn ignition switch to OFF position. Disconnect power window master switch connector. Check for open in Blue/Red wire between right rear window switch connector terminal No. 2 and power window master switch connector terminal No. 13. See «WIRING DIAGRAMS»(ref-3332-S05717782162000042500000). If Blue/Red wire is open, repair as necessary. If Blue/Red wire is okay, go to next step.
3. Check for open in Red/Black wire between right rear window switch connector terminal No. 5 and power window master switch connector terminal No. 8. If Red/Black wire is open, repair as necessary. If Red/Black wire is okay, go to next step.
4. Connect power window master switch connector. Turn ignition switch to ON position. Using a test light connected to ground, backprobe right rear window switch connector terminal No. 2 (Blue/Red wire). (Scheme 3) Press right rear power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe right rear window switch connector terminal No. 5 (Red/Black wire). Press right rear power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace power window master switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
5. Connect right rear power window switch. Using a test light connected to ground, backprobe right rear window switch connector terminal No. 1 (Green wire). (Scheme 3) Press right rear power window switch on power window master switch to DOWN position while observing test light. Using a test light connected to ground, backprobe right rear window switch connector terminal No. 3 (Yellow wire). Press right rear power window switch on power window master switch to UP position while observing test light. If test light comes on in both cases, go to next step. If test light does not come on in both cases, replace right rear power window switch. See «WINDOW SWITCH»(ref-3332-S24254299422000042500000) under REMOVAL & INSTALLATION.
6. Disconnect right rear power window motor connector. Check for open in Green wire between right rear power window motor connector terminal No. 1 and right rear power window switch connector terminal No. 1. If Green wire is okay, go to next step. If Green wire is open, repair as necessary.
7. Check for open in Yellow wire between right rear power window motor connector terminal No. 2 and right rear power window switch connector terminal No. 3. If Yellow wire is okay, replace right rear power window motor. See «WINDOW MOTOR/REGULATOR ASSEMBLY»(ref-3332-S20463662922000042500000) under REMOVAL & INSTALLATION. If Yellow wire is open, repair as necessary.

POWER WINDOW MASTER SWITCH CONTINUITY TEST

Disconnect power window master switch connector. Check continuity between specified power window master switch terminals with switch in specified position. See POWER WINDOW MASTER SWITCH CONTINUITY table. (Scheme 2) If continuity does not exist between specified terminals, replace power window master switch.

POWER WINDOW MASTER SWITCH CONTINUITY