Diagnostic Fault Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Always perform the Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
Washer Inoperative - Rear
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Switch Supply Voltage | 1 | 1 | - | - |
| Switch Signal | 1 | 2 | 4 | - |
| Washer Pump Relay Control | 1 | 3 | 5 | - |
| Washer Pump Control | 3 | 3 | 5 | - |
| Washer Pump Ground | - | 3 | - | - |
| 1. All rear wiper washer system functions inoperative. 2. Rear wiper motor inoperative. 3. Rear washer pump inoperative. 4. Rear wiper motor always on. 5. Rear washer pump always on. |
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