Wipers Always On
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. 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 WPR2 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 WPR2 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 WPR1 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 WPR2 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 WPR1 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 WPR1 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 Multifunction, Turn Signal Switch Replacement
in Steering Wheel and Column. 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 |