Rear Wiper Mux Circuit Error

NAME OF CODE
Rear Wiper MUX Circuit Error

WHEN MONITORED
With the ignition in the run or accessory position and battery voltage above 10 volts.

SET CONDITION
When the rear wiper MUX circuit senses a voltage above 5.0 volts.

THEORY OF OPERATION
The BCM interfaces with the climate control module (CCM) to perform the rear wiper function. The CCM, based upon which rear wiper function is selected, will send the BCM a varying voltage level. The voltage level will determine the wiper function to be performed. That level will be below 5.0 volts.

POSSIBLE CAUSES
- Circuit shorted to battery
- Open CCM ground circuit