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 PARK SWITCH SENSE CIRCUIT HIGH - DIAGNOSTIC PROCEDURE

TEST	ACTION
1	Turn the ignition on. With the DRBIII(R), erase DTCs. Cycle the ignition off and on, leaving ignition key off for at least 15 seconds. Operate the Wiper system in all modes. With the DRBIII(R), read DTCs. Does the DTC reset? Go To 2 No --> Go To 13
2	Turn the ignition on. With the DRBIII(R), erase DTCs. Cycle the ignition off and on, leaving ignition key off for at least 15 seconds. Install a substitute relay in place of the Front Wiper Relay. Operate the Wiper system in all modes. With the DRBIII(R), read DTCs. Does the DTC reset? Go To 3 No --> Replace the Front Wiper Relay in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .
3	Turn the ignition on. With the DRBIII(R), erase DTCs. Turn the ignition off. NOTE: Place the Wipers in the "parked" position. Disconnect the Front Wiper Motor harness connector Measure the resistance of the Park Switch between the Front Wiper Motor Ground pin and the Front Wiper Park Switch Sense pin in the Front Wiper Motor harness connector. Is the resistance above 5.0 ohms? Replace the Front Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4
4	Turn the ignition off. Disconnect the Front Wiper Switch harness connector. Select the Intermittent mode with the Front Wiper Switch. Measure the resistance of the Front Wiper Switch between the Front Wiper Relay Signal pin and the Front Wiper Motor Low Driver Pin. Is the resistance above 5.0 ohms? Replace the Front Wiper Switch (Multi-Function Switch) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5
5	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 from the Front Wiper Motor harness connector to both cavities of the Front Wiper Switch harness connector. Is the resistance above 5.0 ohms? Repair the Front Wiper Motor Low Driver Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 6
6	Turn the ignition off. Disconnect the Front Wiper Motor. Measure the resistance between the Front Wiper Park Switch Ground circuit at the Front Wiper Motor harness connector. Is the resistance above 5.0 ohms? Repair the Front Wiper Park Switch Ground Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 7
7	Turn the ignition off. Disconnect the Front Wiper Motor. Disconnect the Central Timer Module. Measure the resistance of the Front Wiper Park Switch Sense circuit between the Central Timer Module harness connector and the Front Wiper Motor harness connector. Is the resistance above 5.0 ohms? Repair the Front Wiper Park Switch Sense Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 8
8	Turn the ignition off. Disconnect the Front Wiper Relay. Disconnect the Central Timer Module. Measure the resistance of the Front Wiper Park Switch Sense circuit between the Central Timer Module harness connector and the Front Wiper Relay connector. Is the resistance above 5.0 ohms? Repair the Front Wiper Park Switch Sense Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 9
9	Turn the ignition off. Remove the Front Wiper Relay. Disconnect the Front Wiper Switch. Measure the resistance of the Front Wiper Relay Signal circuit. Is the resistance above 5.0 ohms? Repair the Front Wiper Relay Signal Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 10
10	Turn the ignition off. Disconnect the Front Wiper Motor. Disconnect the Central Timer Module. Turn the ignition on. Measure the voltage of the Front Wiper Park Switch Sense Circuit at the Front Wiper Motor harness connector. Is the voltage above 5.0 volts? Repair the Front Wiper Park Switch Sense Circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 11
11	Turn the ignition off. Disconnect the Front Wiper Relay. Disconnect the Central Timer Module. Turn the ignition on. Measure the voltage of the Front Wiper Park Switch Sense Circuit at the Front Wiper Relay connector. Is the voltage above 5.0 volts? Repair the Front Wiper Park Switch Sense Circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 12
12	If there are no possible causes remaining, view repair. Repair Replace the Central Timer Module in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .
13	The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring while checking for shorts and open circuits. Were there any problems found? Repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . No --> Test Complete.