Wipers Inoperative
- Turn ignition off. Remove and inspect WIPER fuse (20-amp) from instrument panel fuse block. If fuse is okay, go to step 3). If fuse is blown, replace fuse. Check wiper operation. Recheck WIPER fuse. If fuse is okay, go to step 3). If fuse is blown, go to next step.
- Turn ignition off. Disconnect multifunction switch, wiper motor and C1 instrument panel fuse block 10-pin connector. Measure resistance of Blue wire between ground and instrument panel fuse block 10-pin connector. If resistance is less than 5 ohms, locate and repair short to ground in Blue wire. If resistance is 5 ohms or more, reinstall fuse and go to next step.
- Reconnect instrument panel fuse block 10-pin connector (if disconnected). Disconnect multifunction switch 14-pin connector. Turn ignition on. Measure voltage between ground and Blue wire terminal at wiper motor connector and at multifunction switch connector. If both readings indicate battery voltage, go to next step. If any reading does not indicate battery voltage, repair Blue wire.
- Turn ignition off. Disconnect multifunction switch 14-pin connector. Using an ohmmeter, check continuity between switch terminals with switch in specified positions. See FRONT WIPER SWITCH CONTINUITY table below. See Fig 1 . Replace multifunction switch as necessary. If switch is okay, go to next step.
- Inspect all wiring between wiper motor connector and multifunction switch for open and/or short circuits. See WIRING DIAGRAMS . Check continuity of Black wire between motor case and ground. Repair Black wire as necessary. If wiring is okay, replace wiper motor.
FRONT WIPER SWITCH CONTINUITY
| Position | Terminal (Wire Color) |
|---|---|
| Off | 4 (BLU/BLK) & 13 (BLU/WHT) |
| Interval | 4 (BLU/BLK) & 13 (BLU/WHT) |
| Low Speed | 11 (BLU & 13 (BLU/WHT) |
| High Speed | 11 (BLU) & 12 (RED) |
| Mist | 11 (BLU) & 12 (RED) |
| Wash | 11 (BLU) & 5 (BLU/ORG) |