Tests AG

PINPOINT TEST AG: LFC 42/DTC B2441 - DRIVER SIDE IMPACT SENSOR MOUNTING FAILURE

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Normal Operation
The driver side impact sensor monitors the severity of a impact event. If the impact event is severe enough, the sensor will signal the restraints control module (RCM) to deploy the driver side air bag.

The RCM monitors the two-wire current loop to the driver side impact sensor for a signal that is out of the expected range. If the RCM detects an out-of-range signal from the driver side impact sensor, indicating a sensor mounting failure, it will store diagnostic trouble code (DTC) B2441 and flash a lamp fault code (LFC) 42 (or a higher priority code if one exists) on the air bag indicator.

Possible Causes
A driver side impact sensor mounting failure fault can be caused by:
- a driver side impact sensor internal fault.
- a driver side impact sensor mounting failure.
- a faulted RCM.