Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
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
Right Door Key CYL Arm SW Failure
NAME OF CODE
Right Door Key Cyl Arm Sw Failure
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The BCM senses a voltage of 4.0 volts (+/-250mV) on the RF door switch MUX circuit for longer than 8 seconds.
THEORY OF OPERATION
The BCM interfaces with the power door lock, unlock, arm and disarm switches via a single wire circuit (Door Switch MUX) for each door zone.
Each zone functions independently of each other. Each switch inside the door has a unique resistance value which when activated sends a voltage
level to the BCM. The BCM will interpret the different levels and perform the desired function.
POSSIBLE CAUSES
-
Shorted right door key cylinder switch
-
Body control module
Right Door Key CYL Disarm SW Failure
NAME OF CODE
Right Door Key Cyl Disarm Sw Failure
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The BCM senses a voltage of 2.0 volts (+/-250mV) on the RF door switch MUX circuit for longer than 8 seconds.
THEORY OF OPERATION
The BCM interfaces with the power coor lock, unlock, arm and disarm switches via a single wire circuit (Door Switch MUX) for each door zone.
Each zone functions independently of each other. Each switch inside the door has a unique resistance value which when activated sends a voltage
level to the BCM. The BCM will interpret the different levels and perform the desired function.
POSSIBLE CAUSES
-
Shorted right door key cylinder switch
-
Body control module
Right Door Lock Switch Failure
NAME OF CODE
Right Door Lock Switch Failure
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The BCM senses a voltage of 3.0 volts (+/-250mV) on the RF door switch MUX circuit for longer than 8 seconds.
