Washers Inoperative - Headlamp
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.
Washers Inoperative - Headlamp Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Wiper/Washer System Schematics Connector End View Reference: Wiper/Washer System Connector End Views DEFINITION: The headlamp washers are inoperative. |
|||
| 1 | Did you perform the Wiper/Washer System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Wiper/Washer |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 6 | Go to Step 4 |
| 4 | Test the headlamp washer switch signal circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 5 |
| 5 | Test the headlamp washer switch ground circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 9 |
| 6 |
|
Go to Step 11 | Go to Step 7 |
| 7 | Test the headlamp washer pump control circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 8 |
| 8 | Test the headlamp washer pump ground circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 13 |
| 9 | Inspect for poor connections at the headlamp washer switch. 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 14 | Go to Step 10 |
| 10 | Replace the headlamp washer switch. Did you complete the replacement? |
Go to Step 14 | - |
| 11 | Inspect for poor connections at the headlamp washer pump. 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 14 | Go to Step 12 |
| 12 | Replace the headlamp washer pump. Refer to Washer Pump Replacement - Headlamp . Did you complete the replacement? |
Go to Step 14 | - |
| 13 | Replace the headlamp washer relay. Did you complete the replacement? |
Go to Step 14 | - |
| 14 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |