Diagnostic Test
- 1) INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all TIPM DTC's.
Turn the Rear Wipers on.
With the Scan Tool, read the TIPM DTC's.
Does the Scan Tool read: B230D-REAR WIPER PARK SWITCH INPUT CIRCUIT LOW?
Yes
- Go To 2).
No
- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Perform BODY VERIFICATION TEST - VER 1 .
- 2) REAR WIPER MOTOR
Turn the ignition off.
Disconnect the Rear Wiper Motor connector.
Turn the ignition on.
With the Scan Tool, read the TIPM DTC's.
Does the Scan Tool read: B230D-REAR WIPER PARK SWITCH INPUT CIRCUIT LOW?
Yes
- Go To 3).
No
- Replace the Rear Wiper Motor in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1 .
- 3) (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the TIPM C2 harness connector.
Measure the resistance between ground and the (W17) Rear Wiper Park Switch Sense circuit.
Is the resistance below 5.0 ohms?
Yes
- Repair the (W17) Rear Wiper Park Switch Sense circuit for a short condition.
- Perform BODY VERIFICATION TEST - VER 1 .
No
- Replace the Totally Integrated Power Module in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1 .