B230D

B230D-REAR WIPER PARK SWITCH INPUT CIRCUIT LOW (STUCK LOW)





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

Rear Wiper requested

- Set Condition:
The Totally Integrated Power Module (TIPM) detects a short to ground or open in the Rear Wiper Park Switch Sense circuit.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Cycle the Rear Wiper Switch on and off three times.
4. With the scan tool, read 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 REAR WIPER MOTOR HARNESS CONNECTIONS
1. Turn the ignition off.
2. Check the headliner harness inline connectors and rear wiper motor harness connector. Make sure the connectors are fully seated.
3. Turn the ignition on.
4. Cycle the Rear Wiper Switch on and off three times.
5. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 3

No

- Test complete, the open connector condition that originally set this DTC is not present at this time.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE REAR WIPER MOTOR
1. Turn the ignition off.
2. Disconnect the Rear Wiper Motor harness connector.
3. Turn the ignition on.
4. With the scan tool, read the Rear Wiper Park Signal.

Does the Rear Wiper Park Signal display: Not Parked (false)?

Yes

- Replace the Rear Wiper Motor. Rear Wiper Motor - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. CHECK (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Measure the resistance between ground and the (W17) Rear Wiper Park Switch Sense Circuit.

Is the resistance above 10k Ohms?

Yes

- Replace the Totally Integrated Power Module (TIPM). Totally Integrated Power Module (TIPM) - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the short to ground in the (W17) Rear Wiper Park Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.