Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

FRONT WIPER LOW SPEED INOP - DIAGNOSTIC PROCEDURE

TEST	ACTION
1	Turn the ignition off. Disconnect the Front Wiper Switch harness connector. Connect a jumper wire between the Fused Ignition Switch Output circuit and the Front Wiper Motor Low Driver circuit in the Front Wiper Switch harness connector. Turn the ignition on. Does the Front Wiper Motor function? Yes --> Replace the Front Wiper Switch (Multi- Function Switch) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 2
2	Turn the ignition off. Disconnect the Front Wiper Motor. Using a 12-volt test light connected to 12-volts, check the Front Wiper Motor Ground circuit. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes --> Go To 3 No --> Repair the Front Wiper Motor Ground Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 .
3	Turn the ignition off. Disconnect the Front Wiper Motor. Disconnect the Front Wiper Switch. Measure the resistance of the Front Wiper Motor Low Driver circuit. Is the resistance above 5.0 ohms? Yes --> Repair the Front Wiper Motor Low Driver Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4
4	Turn the ignition off. Disconnect the Front Wiper Switch. Using a 12-volt test light connected to ground, check the Fused Ignition Switch Output circuit. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes --> Repair the Fused Ignition Switch Output circuit for an open. If the fuse is open make sure to check for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5
5	Turn the ignition off. Disconnect the Front Wiper Motor harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the Front Wiper Motor Low Driver circuit. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Activate the Front Wipers on Low. Does the test light illuminate brightly? Yes --> Replace the Front Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Test Complete.