B2304-WIPER PARK SWITCH INPUT CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
- With the ignition on.
- Set Condition:
- The FCM detects a short to ground condition.
| Possible Causes |
| FRONT WIPER MOTOR |
| (W7) FRONT WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND |
| FRONT CONTROL MODULE |
Diagnostic Test
1. INTERMITTENT CONDITIONTurn the ignition on.
With the Scan Tool, clear all FCM DTC's.
Turn the Wipers on.
With the Scan Tool, read the Wiper DTC's.
Does the Scan Tool read: B2304-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 the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
2. WIPER MOTOR
With the scan tool, erase DTCs.
Turn the ignition off.
Disconnect the Front Wiper Motor harness connector.
Turn the ignition on.
Wait 30 seconds
With the scan tool, read DTCs.
Does the Scan Tool read: B2305-WIPER PARK SWITCH INPUT CIRCUIT HIGH?
Yes
- Replace the Front Wiper Motor in accordance with the service information.
- Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To 3
3. (W7) FRONT WIPER MOTOR PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the IPM C1 harness connector.
Measure the resistance between ground and the (W7) Front Wiper Park Switch Sense circuit.
Is the resistance below 5.0 ohms?
Yes
- Repair the (W7) Front Wiper Park Switch Sense circuit for a short to ground condition.
- Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace the Front Control Module in accordance with the service information.
- Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)