B230C-13

B230C-13-REAR WIPER PARK SWITCH INPUT - CIRCUIT OPEN





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 on.

- Set Condition:
The Body Control Module (BCM) does not detect battery voltage on the Rear Wiper Park Switch Sense circuit when the wipers are in the park position.





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. ATTEMPT TO SET THE OPPOSITE DTC




1. Turn the ignition off.
2. Disconnect the Rear Wiper Motor harness connector.
3. Connect a jumper wire between the (W17) Rear Wiper Park Switch Sense circuit and 12-volts.
4. Turn the ignition on.
5. With the scan tool, read the DTCs.

Does the scan tool display DTC: B230C-12-REAR WIPER PARK SWITCH INPUT - CIRCUIT SHORT TO BATTERY?

Yes

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

No

- Go To 3

3. CHECK THE (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT FOR AN OPEN




1. Turn the ignition off.
2. Disconnect the BCM E harness connector.
3. Measure the resistance of the (W17) Rear Wiper Park Switch Sense circuit between the Rear Wiper Motor harness connector and the BCM E harness connector.

Is the resistance below 5.0 Ohms?

Yes

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

No

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