Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Master Electrical Component List | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
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 |
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 . 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 . 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 |
Are the windshield wipers ON? | 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 |
Are the windshield wipers ON? | Go to Step 11 | Go to Step 22 |
11 |
Does the test lamp illuminate? | Go to Step 17 | Go to Step 12 |
12 |
Does the test lamp illuminate? | Go to Step 18 | Go to Step 23 |
13 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 22 |
14 |
Does the test lamp illuminate? | Go to Step 19 | Go to Step 15 |
15 |
Does the test lamp illuminate? | 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 . 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 . 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 . 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 . 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 . Did you complete the replacement? | Go to Step 24 | -- |
21 | Replace the wiper relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 24 | -- |
22 | Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement . Did you complete the repair? | Go to Step 24 | -- |
23 | Replace the BCM. Refer to Control Module References 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 |
