B2304

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

- 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:

1. INTERMITTENT CONDITION

NOTE: This DTC may set due to a stuck Front Wiper Switch input. With the scan tool, verify the Front Wiper Switch is operating correctly before diagnosing this DTC.

1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Cycle the Wiper Switch on and off three (3) times.
4. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- 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. Body Verification Test

2. FRONT WIPER MOTOR

1. Turn the ignition off.
2. Disconnect the Front Wiper Motor harness connector.
3. Turn the ignition on.
4. Wait 3O 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. Body Verification Test

No

- Go To 3

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. Body Verification Test

No

- Repair the short to ground in the (W7) Wiper Park Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test