Wiper Switch MUX Circuit Short To Ground

When Monitored: The ignition must be in the run position and battery voltage supplied to the BCM on the Fused B (+) circuit.

Set Condition: If the voltage on the wiper switch MUX circuit drops less than 0.3 volts for more than 5 seconds the code will set.

Possible Causes are:

VERIFYING ACTIVE DTC WIPER SWITCH MUX CIRCUIT SHORTED TO GROUND
WINDSHIELD WIPER SWITCH MUX CIRCUIT SHORTED TO GROUND
RIGHT MULTI-FUNCTION SWITCH DEFECTIVE, WIPER MUX CIRCUIT SHORTED TO GROUND
BCM DEFECTIVE WIPER MUX CIRCUIT SHORTED TO GROUND

Turn ignition on. Using the DRBIII(R), Erase BCM DTC's. Turn ignition off, then turn ignition on. Turn the wiper switch to each intermittent position, then low and high speed positions. Using the DRBIII(R), read BCM DTC's. Does the DRBIII(R) show WIPER SWITCH MUX CIRCUIT SHORTED TO GROUND? If yes, go to next step. If no, test is complete. Code is not present at this time.
Turn ignition off. Disconnect the right multi-function switch connector. Disconnect the BCM C2 connector. Using an ohmmeter, Measure the resistance of the Windshield Wiper Switch MUX circuit between the BCM C2 connector and ground. Is the resistance less than 5 ohms? If yes, repair the Windshield Wiper Switch MUX circuit shorted to ground. Perform BODY VERIFICATION TEST VER 1 under VERIFICATION TESTS. If no, go to next step.
Turn ignition off. Disconnect the right multi-function switch connector. Turn the Windshield Wiper Switch to the OFF position. Using an ohmmeter, measure between the windshield wiper switch MUX circuit and the Wiper Switch Return circuit of the right multi-function switch. Observe the ohmmeter while turning the windshield wiper switch from the OFF position to the high speed position. Is the resistance less than 40 ohms in any position? If yes, replace the right multi-function switch. Perform BODY VERIFICATION TEST VER 1 under VERIFICATION TESTS. If no, go to next step.
Turn ignition off. Disconnect the BCM C2 connector. Turn Ignition on. Using the DRBIII(R), read the WIPER MODE SW VOLTS sensor. Does the DRBIII(R) show the sensor volts less than 0.3 volts? If yes, replace the Body Control Module. Perform BODY VERIFICATION TEST VER 1 under VERIFICATION TESTS. If no, test is complete.