Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - WIPER PARK SWITCH FAILURE
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, erase all BCM DTC's. Turn the Wipers on. With the DRBIII®, read DTCs. Does the DRBIII® display: WIPER PARK SWITCH FAILURE? Yes --> Go To 2 No --> The condition is not present at this time. Monitor DRBIII parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins that may apply. Visually inspect the related wiring harness and connector terminals. Perform BODY VERIFICATION TEST - VER 1 . |
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| 2 | Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Disconnect the Junction Block C3 harness connector. Turn the ignition on. Measure the voltage of the Wiper Park Switch Sense circuit in the Front Wiper Motor harness connector. Is there any voltage present? Yes --> Repair the Wiper Park Switch Sense circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3 |
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| 3 | Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Disconnect the Junction Block C3 harness connector. Measure the resistance of the Wiper Park Switch Sense circuit between the Junction Block C3 harness connector and the Wiper Motor harness connector. Is the resistance below 5.0 ohms? Yes --> Go To 4 No --> Repair the Front Wiper Park Switch Sense circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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| 4 | Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Disconnect the Junction Block C3 harness connector. Measure the resistance between ground and the Wiper Park Switch Sense circuit in the Junction Block C3 harness connector. Is the resistance below 100.0 ohms? Yes --> Repair the Front Wiper Park Switch Sense circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5 |
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| 5 | Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Using a 12-volt test light connected to 12-volts, test the Ground circuit in the Front Wiper Motor harness connector. Does the test light illuminate brightly? Yes --> Go To 6 No --> Repair the Wiper Motor Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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| 6 | Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Turn the ignition on. Connect a jumper wire from the Wiper Park Switch Sense circuit to ground. With the DRBIII® in Inputs/Outputs read: Wiper Park Switch state. Did the Wiper Park Switch Input change state when connected to ground? Yes --> Replace the Wiper Motor. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Body Control Module. Perform BODY VERIFICATION TEST - VER 1 . |
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