B2304-WIPER PARK SWITCH INPUT CIRCUIT LOW (STUCK LOW)

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

When Monitored:
With the ignition on.
Set Condition:
The Totally Integrated Power Module (TIPM) detects a short to ground on the Wiper Park Switch Sense circuit.

Possible Causes
(W7) WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
FRONT WIPER MOTOR
TOTALLY INTEGRATED POWER MODULE

1. INTERMITTENT CONDITION

1.	Turn the ignition on.

2.	With the scan tool, clear all DTCs.

3.	Cycle the Wiper Switch on and off three times.

4.	With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

2. FRONT WIPER MOTOR

1.	Turn the ignition off.

2.	Disconnect the Front Wiper Motor harness connector.

3.	Turn the ignition on.

4.	Wait 30 seconds.

5.	With the scan tool, read the Front Wiper Park Switch Sense.

Does the Front Wiper Park Switch Sense display: False?

Yes

Replace the Front Wiper Motor in accordance with the Service Information.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

3. CHECK (W7) 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 (W7) Wiper Park Sense Circuit.

Is the resistance above 10k Ohms?

Yes

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

Repair the (W7) Wiper Park Switch Sense circuit for a short to ground.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).