B231C

B231C-REAR WIPER MOTOR CONTROL CIRCUIT HIGH

B231C - Rear Wiper Motor Control Circuit High:

POSSIBLE CAUSES
- Rear wiper relay
- (W12) Rear wiper relay control circuit shorted to B(+)
- Integrated power module

Diagnostic test

1. (W12) REAR WIPER RELAY CONTROL CIRCUIT SHORT TO B(+)

Measure the resistance between ground and the (W12) Rear Wiper Relay Control circuit.

Q: Is the resistance below 5.0 ohms?

YES: Repair the (W12) Rear Wiper Relay Control circuit for a short to B(+).
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

NO: Go To 2

2. INTEGRATED POWER MODULE

Turn the ignition off.
Replace the Rear Wiper relay with and known good relay.
With the Scan Tool, clear all FCM DTC's.
Turn the Rear Wipers ON then OFF.
With the Scan Tool, read the FCM DTC's.

Q: Does the Scan Tool read: B231C-REAR WIPER MOTOR CONTROL CIRCUIT HIGH?

YES: Replace the Integrated Power Module.
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Test complete.
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test