B230C-12

B230C-12-REAR WIPER PARK SWITCH INPUT - CIRCUIT SHORT TO BATTERY





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

Theory of Operation

The Body Control Module (BCM) provides a ground path for the wiper park switch sense circuit through a pull-down resistor that is connected to ground. The Wiper Park Switch switches the signal circuit to voltage when the wiper motor is active and in the park position.

- When Monitored:
With the ignition on.

Rear Wiper is off or Rear Wiper is on following a time-out period.

- Set Condition:
The Body Control Module (BCM) detects a short to voltage on 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 FOR CORRECT OPERATION
1. Turn the ignition off.
2. Disconnect the Rear Wiper Motor harness connector.
3. Turn the ignition on.
4. Turn the rear wipers on.
5. With the scan tool, read the DTCs.

Does the scan tool display DTC: B230C-13-REAR WIPER PARK SWITCH INPUT - CIRCUIT OPEN?

Yes

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

No

- Go To 3

3. CHECK (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE




1. Turn the ignition off.
2. Disconnect the BCM E harness connector.
3. Turn the ignition on.
4. Measure the voltage between ground and the (W17) Rear Wiper Park Switch Sense Circuit.

Is there any voltage present?

Yes

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

No

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