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

M1:

M1 - M2:

M2 - M3:

M4 - M5:

M5 - M6:

Normal Operation
The passenger seat side impact sensor monitors the severity of a crash event. If the crash 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 fault, 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 fault can be caused by:
^ a passenger seat side impact sensor internal fault.
^ a passenger seat side impact sensor mounting fault.
^ RCM is faulted.