Wiper/Washer Systems: Testing
Turn ignition on. Check fuse No. 8. If fuse is okay, ensure voltage supply to fuse is good. Turn wiper switch to each position and check for voltage at appropriate terminals. See WIPER MOTOR VOLTAGE SPECIFICATIONS table, WIPER RELAY VOLTAGE SPECIFICATIONS or WIPER SWITCH VOLTAGE SPECIFICATIONS table. If voltages are not as specified, check all connectors, wiring and grounds.
WIPER MOTOR VOLTAGE SPECIFICATIONS
| Switch Position | Voltage At Terminal(s) (Wire Color) |
|---|---|
| "O" | 53a (Brown) |
| "J", "T" & "I" | 53a (Brown), 31b (Blue) & 53 (Red) |
| II | 53a (Brown), 31b (Blue) & 53b (Green) |
| "P" | 53a (Brown), 31b (Blue) & 53 (Red) |
WIPER RELAY VOLTAGE SPECIFICATIONS
| Switch Position | Voltage At Terminal(s) (Wire Color) |
|---|---|
| "O" | 15 (Brown) |
| "J" | "1" (White), 15 (Brown), 53M (Blue) & 53S (Blue/White) |
| "T", "I" & II | 15 (Brown), 53M (Blue) & 53S (Blue/White) |
| "P" | "T" (Yellow), 15 (Brown), 53M (Blue) & 53S (Blue/White) |
WIPER SWITCH VOLTAGE SPECIFICATIONS
| Switch Position | Voltage At Terminal(s) (Wire Color) |
|---|---|
| "O" | 15 (Brown) |
| "J" | "J" (White), 15 (Brown), 31b (Blue) & 53 (Red) |
| "T" & "I" | 15 (Brown), 31b (Blue) & 53 (Red) |
| II | 15 (Brown), 31b (Blue) & 53b (Green) |
| "P" | "P" (Yellow), 15 (Brown), 31b (Blue) & 53 (Red) |