SUB-SWITCH
When ignition switch is in ON position, battery voltage is applied to the power window relay through fuse 16 (10-amp), located in passenger compartment fuse panel. When relay is energized, battery voltage is supplied to the master switch assembly through closed relay contacts. When a sub-switch is operated, battery voltage is applied to the appropriate power window motor. The motor is then grounded through the opposite contact in the respective sub-switch and master switch assembly.
POWER WINDOW MOTORS
Remove motor to be tested. Apply battery voltage across motor terminals. Motor should operate smoothly. Reverse polarity and ensure motor operates smoothly in opposite direction. If motor does not test as specified, replace power window motor.
POWER WINDOW RELAY
- Remove power window relay from power distribution box. Check continuity between power window relay terminals No. 1 and 3 and between terminals No. 2 and 4. (Scheme 3) Continuity should exist between terminals No. 1 and 3. Continuity should not exist between terminals No. 2 and 4. If continuity is as specified, go to next step. If continuity is not as specified, replace power window relay.
- Apply battery voltage between terminals No. 1 and 3. Check continuity between terminals No. 2 and 4. If continuity exists, power window relay is okay. If continuity does not exist, replace power window relay.
Scheme 3
Remove sub-switch to be tested. Check continuity between specified terminals with switch in specified position. See SUB-SWITCH CONTINUITY. (Scheme 4) If continuity is not as specified, replace sub-switch.
| Switch Position | Continuity Between Terminals No. |
|---|---|
| Up | 1 & 3; 4 & 7 |
| Off | 1 & 3; 6 & 7 |
| Down | 3 & 4; 6 & 7 |
SUB-SWITCH CONTINUITY
Scheme 4
POWER WINDOW MAIN SWITCH
Remove main switch. Check continuity between specified terminals with switch in specified position. See MAIN SWITCH CONTINUITY. (Scheme 5) If continuity is not as specified, replace main switch.
| Switch Position | Continuity Between Terminals No. | |
|---|---|---|
| Left Front (1) | ||
| Up | 1 & 9; 2 & 8 | |
| Off | 1, 2 & 9 | |
| Down | 1 & 8; 2 & 9 | |
| Right Front | ||
| Up | 3 & 9; 4 & 8 | |
| Off | 3, 4 & 9 | |
| Down | 3 & 8; 4 & 9 | |
| Left Rear | ||
| Up | 6 & 9; 7 & 8 | |
| Off | 6, 7 & 9 | |
| Down | 6 & 8; 7 & 9 | |
| Right Rear | ||
| Up | 8 & 11; 9 & 10 | |
| Off | 9, 10 & 11 | |
| Down | 8 & 10; 9 & 11 | |
| Lock Switch | ||
| Lock | (2) | |
| Unlock | 5 & 8 | |
| (1) If equipped with auto down function, continuity should also exist between terminals No. 1, 2 and 9 at all times. (2) Continuity should not exist between terminals No. 5 and 8. | ||
| (1) | If equipped with auto down function, continuity should also exist between terminals No. 1, 2 and 9 at all times. |
| (2) | Continuity should not exist between terminals No. 5 and 8. |
MAIN SWITCH CONTINUITY
Scheme 5
ALL WINDOWS INOPERATIVE
If all power windows are inoperative, check the following and repair a necessary.
- Blown Fusible Link - Check for short to ground and repair as necessary.
- Blown Power Window Fuse - Check for short to ground. See «WIRING DIAGRAMS»(ref-37656-S36352333862001010900000) .
- Defective Sub-Switch - See «SUB-SWITCH»(ref-37656-S19967548482001010900000) under COMPONENT TESTS.
- Defective Power Window Main Switch - See POWER WINDOW MAIN SWITCH under «COMPONENT TESTS»(ref-37656-S39400255232001010900000) .
- Defective Power Window Relay - See «POWER WINDOW RELAY»(ref-37656-S26578785942001010900000) under COMPONENT TESTS.
- Wiring Harness - See «WIRING DIAGRAMS»(ref-37656-S36352333862001010900000) .
DRIVER'S WINDOW INOPERATIVE
If only driver's side window is inoperative, check the following and repair as necessary.
- Defective Power Window Main Switch - See POWER WINDOW MAIN SWITCH under «COMPONENT TESTS»(ref-37656-S39400255232001010900000) .
- Defective Motor - See «POWER WINDOW MOTORS»(ref-37656-S12340761862001010900000) under COMPONENT TESTS.
- Wiring Harness - See «WIRING DIAGRAMS»(ref-37656-S36352333862001010900000) .
PASSENGER'S WINDOW INOPERATIVE
If passenger's window is inoperative, check the following and repair as necessary.
- Defective Power Window Main Switch - See POWER WINDOW MAIN SWITCH under «COMPONENT TESTS»(ref-37656-S39400255232001010900000) .
- Defective Motor - See «POWER WINDOW MOTORS»(ref-37656-S12340761862001010900000) under COMPONENT TESTS.
- Wiring Harness - See «WIRING DIAGRAMS»(ref-37656-S36352333862001010900000) .
WINDOW MOTOR
| CAUTION | When loosening mounting screws of regulator and motor assembly, compressed force of regulator spring may cause regulator arm to spring up. When installing door trim seal, DO NOT place tape over door trim fastener mounting area. |