BODY CONTROL MODULE B (BCM-B) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action
B109F:08	Intrusion Sensor Module: Bus Signal/Message Failures	GO to PINPOINT TEST E .
B109F:49	Intrusion Sensor Module: Internal Electronic Failure	INSTALL a new intrusion and inclination sensor. REFER to INTRUSION AND INCLINATION SENSOR in this service information. TEST the system for normal operation.
B109F:55	Intrusion Sensor Module: Not Configured	REFER to MODULE COMMUNICATIONS NETWORK - MODULE CONFIGURATION article.
B109F:97	Intrusion Sensor Module: Component Or System Operation Obstructed Or Blocked	NOTE: The Body Control Module B (BCM-B) DTC B109F: 97 is a continuous memory and on-demand DTC that sets when there are 3 successive failures of the intrusion and inclination sensor module to arm and there is no indication of a module fault and the communication link between the module and the BCM-B appears to have sufficient integrity. CHECK for any blockages/restrictions near the intrusion and inclination sensor that may hinder/affect the operation of the sensor.
All other DTCs	-	REFER to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULE article.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Body Control Module B (BCM-B)