Wipers Always On
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Wipers Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Wiper/Washer System Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Turn the ignition to the ON position. Are the windshield wipers ON? |
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Remove the wiper high relay. Are the windshield wipers ON? |
Go to Step 4 | Go to Step 7 |
| 4 | Are the windshield wipers operating at a high speed? | Go to Step 5 | Go to Step 6 |
| 5 | Test for a short to battery positive voltage in the windshield wiper motor high speed circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 24 | Go to Step 20 |
| 6 | Test for a short to battery positive voltage in the windshield wiper motor low speed circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 24 | Go to Step 20 |
| 7 | Using a test lamp connected to ground, probe the wiper high speed relay control circuit at the underhood fuse block. Does the test lamp illuminate? |
Go to Step 13 | Go to Step 8 |
| 8 |
|
Go to Step 20 | Go to Step 9 |
| 9 | Using a test lamp connected to ground, probe the wiper relay control circuit. Does the test lamp illuminate? |
Go to Step 10 | Go to Step 21 |
| 10 |
|
Go to Step 11 | Go to Step 22 |
| 11 |
|
Go to Step 17 | Go to Step 12 |
| 12 |
|
Go to Step 18 | Go to Step 23 |
| 13 |
|
Go to Step 14 | Go to Step 22 |
| 14 |
|
Go to Step 19 | Go to Step 15 |
| 15 |
|
Go to Step 16 | Go to Step 23 |
| 16 | Test for a short to ground in the wiper high speed relay control circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 24 | Go to Step 20 |
| 17 | Repair a short to ground in the windshield wiper switch low signal circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 24 | - |
| 18 | Repair a short to battery positive voltage in the wiper relay control circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 24 | - |
| 19 | Repair a short to ground in the windshield wiper switch high signal circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 24 | - |
| 20 | Replace the underhood electrical fuse block. Refer to Underhood Electrical Center or Junction Block Replacement
in Wiring Systems. Did you complete the replacement? |
Go to Step 24 | - |
| 21 | Replace the wiper relay. Refer to Relay Replacement (Within an Electrical Center)
or Relay Replacement (Attached to Wire Harness)
in Wiring Systems. Did you complete the replacement? |
Go to Step 24 | - |
| 22 | Replace the windshield wiper/washer switch. Refer to Wipers/Washer Switch Replacement . Did you complete the repair? |
Go to Step 24 | - |
| 23 | Replace the BCM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup and programming. Did you complete the replacement? |
Go to Step 24 | - |
| 24 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |