Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Wiper/Washer Schematics in Wipers/Washer Systems. Connector End View Reference: Component Connector End Views . | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Do the windshield wipers remain in the Park position? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. | Go to Step 3 |
3 | Disconnect the harness connector of the Wiper/Washer switch. Do the windshield wipers stop? | Go to Step 11 | Go to Step 4 |
4 | Connect a test lamp from the signal circuit of the Wiper/Washer switch at the body control module (BCM) to a good ground. Does the test lamp illuminate? | Go to Step 9 | Go to Step 5 |
5 | Connect a test lamp from the supply voltage circuit of the wiper Hi relay coil to a good ground. Does the test lamp illuminate? | Repair a short to voltage on supply voltage circuit of the wiper relay coil. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. | Go to Step 6 |
6 | Connect a test lamp from the control circuit of the washer pump to a good ground. Does the test lamp illuminate? | Repair a short to voltage on control circuit of the washer pump. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. | Go to Step 7 |
7 | Disconnect the wiper relay. Do the windshield wipers stop? | Go to Step 8 | Repair a short to voltage on high speed circuit of the windshield wiper motor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. |
8 | Connect a test lamp from the supply voltage circuit of the wiper relay coil from the BCM to a good ground. Does the test lamp illuminate? | Go to Step 10 | Go to Step 12 |
9 | Test the signal circuit of the Wiper/Washer switch for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Go to Step 13 |
10 | Test the supply voltage circuit of the wiper relay for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Go to Step 13 |
11 | Inspect for poor connections at the windshield Wiper/Washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Replace the Wiper/Washer switch. Refer to Windshield Wiper and Washer Switch Replacement . |
12 | Inspect for poor connections at the wiper relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Replace the wiper relay. |
13 | Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems, for replacement, setup, and programming. |
