Test Q: LFC 43/DTC B2440 - Passenger Side Crash Sensor Mounting Failure

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Q2:

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Normal Operation
The passenger side impact sensor monitors the severity of a crash event. If the crash event is severe enough, the sensor will signal the Restraints Control Module (RCM) to deploy the passenger side air bag.

The RCM monitors the two-wire current loop to the passenger side impact sensor for a signal that is out of the expected range. If the RCM detects a signal from the passenger side impact sensor, indicating a sensor mounting failure, it will store Diagnostic Trouble Code (DTC) B2440 and flash a Lamp Fault Code (LFC) 43 (or a higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger side impact sensor mounting failure fault can be caused by:
^ damaged passenger side impact sensor.
^ corrosion or damage at the sensor mounting surface.