Test M: LFC 43/DTC B2440 - Passenger Side Impact Sensor Mounting Failure

M1:

M1 - M2:

M2 - M3:

M4 - M5:

M5 - M6:

Normal Operation
The passenger seat 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 passenger seat side air bag.

The RCM monitors the two-wire current loop to the passenger seat side impact sensor for a signal that is out of the expected range. If the RCM detects an out-of-range signal from the passenger seat 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 seat side impact sensor mounting failure fault can be caused by:
^ a passenger seat side impact sensor internal fault.
^ a passenger seat side impact sensor mounting failure.
^ an RCM internal concern.