Wipers Inoperative - All Modes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Wipers Inoperative - All Modes Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Wiper/Washer System Schematics Connector End View Reference: Wiper/Washer System Connector End Views DEFINITION: Windshield wipers are inoperative in all modes. |
|||
| 1 | Did you perform the Wiper/Washer Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Wiper/Washer |
| 2 |
|
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 |
|
Go to Step 5 | Go to Step 4 |
| 4 | Connect a test lamp from the accessory voltage supply circuit terminal in the windshield wiper motor harness connector to a good ground. Does the test lamp illuminate? |
Go to Step 7 | Go to Step 6 |
| 5 | Inspect for poor connections at the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 6 | Repair an open or short to ground in the accessory voltage supply circuit to the windshield wiper motor. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Is the repair complete? |
Go to Step 9 | - |
| 7 | Repair an open or high resistance in the windshield wiper motor ground circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Is the repair complete? |
Go to Step 9 | - |
| 8 | Replace the windshield wiper motor. Refer to Wiper Transmission Replacement . Is the repair complete? |
Go to Step 9 | - |
| 9 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |