Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
level to the BCM. The BCM will interpret the different levels and perform the desired function.
POSSIBLE CAUSES
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Shorted liftgate key cylinder switch
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Body control module
Liftgate Door Mux CKT Short to GND
NAME OF CODE
Liftgate Door MUX Ckt Short to Gnd
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The BCM senses a voltage below 0.4 volts on the liftgate switch MUX circuit.
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 wire (Liftgate Switch MUX)
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Body control module
LT Front Door Mux Circuit Short to GND
NAME OF CODE
LT Front Door MUX Circuit Short to Gnd
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The BCM senses a voltage below 0.4 volts on the LF door switch MUX circuit.
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 wire (LF Door Switch MUX)
-
Body control module
No CCD Message From PCM
NAME OF CODE
No CCD Message From PCM
WHEN MONITORED
When the ignition is in the run or start position and battery voltage is above 10 volts.
SET CONDITION
The BCM looks for engine messages over the CCD bus and does not receive a message within a 2-second period.
THEORY OF OPERATION
The body control module will monitor the engine messages after the ignition has been turned on.
POSSIBLE CAUSES
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Body control module
-
Powertrain control module
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CCD Bus failure
Rear Wiper Mux Circuit Error
NAME OF CODE
