B2312-11

B2312-11-WIPER ON/OFF CONTROL - CIRCUIT SHORT TO GROUND





For a complete wiring diagram, refer to the wiring information.

- When Monitored:
With the windshield wipers on.

- Set Condition:
The Body Control Module (BCM) detects a short to ground in the wiper on/off relay coil control circuit.





1. CHECK FOR ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, clear DTCs.
3. Turn the front wipers on.
4. With the scan tool, read the active DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK THE WIPER ON/OFF RELAY FOR CORRECT OPERATION
1. Turn the ignition off.
2. Remove the Front Wiper On/Off Relay and substitute it with a known good relay.
3. Turn the ignition on.
4. Turn the windshield wipers on.

Do the windshield wipers operate?

Yes

- Replace the Front Wiper On/Off Relay.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (W8) WIPER ON/OFF RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Remove the Front Wiper On/Off Relay.
3. Disconnect the BCM A harness connector.
4. Measure the resistance between ground and the (W8) Wiper On/Off Relay Control circuit.

Is the resistance above 10k Ohms?

Yes

- Replace the Body Control Module (BCM). Body Control Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the short to ground in the (W8) Wiper On/Off Relay Control circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.