TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the IPM C4 harness connector.
Disconnect the Wiper Motor harness connector.
Measure the voltage between the Wiper Park Switch Sense circuit and ground.
Is there any voltage present?
All
Yes → Repair the Wiper Park Switch Sense circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 5
5 Turn the ignition off.
Disconnect the IPM C4 harness connector.
Disconnect the Wiper Motor harness connector.
Measure the resistance between ground and the Wiper Park Switch Sense circuit.
Is the resistance below 5.0 ohms?
All
Yes → Repair the Wiper Park Switch Sense circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 6
6 Turn the ignition off.
Disconnect the IPM C4 harness connector.
Disconnect the Wiper Motor harness connector.
Measure the resistance of the Wiper Park Switch Sense circuit.
Is the resistance above 5.0 ohms?
All
Yes → Repair the Wiper Park Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 7
7 Turn the ignition off.
Remove the FCM from the IPM.
Disconnect the IPM C4 harness connector.
Measure the internal resistance of the Wiper Park Switch Sense circuit.
Is the resistance above 5.0 ohms?
All
Yes → Replace the Power Distribution Center (PDC) in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No → Replace the Front Control Module (FCM) in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
540
WINDSHIELD WIPER & WASHER
FCM-WIPER PARK SWITCH INPUT PERFORMANCE — Continued
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