Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
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Body control module
Internal Module Test Failed
NAME OF CODE
Internal Module Test Failed
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
SET CONDITION
The body control module performs an internal check and determines the body control module is not functioning properly.
THEORY OF OPERATION
The body control module performs internal diagnostics on demand and determines if the body control module microprocessor is functioning
properly.
POSSIBLE CAUSES
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Body control module
Left Door Key CYL Arm SW Failure
NAME OF CODE
Left 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 LF 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
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Shorted left door key cylinder switch
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Body control module
Left Door Key CYL Disarm SW Failure
NAME OF CODE
Left 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 LF 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
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Shorted left door key cylinder switch
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Body control module
Left Door Lock Switch Failure
NAME OF CODE
Left Door Lock Switch Failure
WHEN MONITORED
Anytime battery voltage is above 10 volts and BCM is awake.
