Test O: LFC 43/DTC B2440 -Passenger Side Crash Sensor Mounting Fault

O1:

O2:

O2 - O3:

O4 - O5:

O5 - O6:

Normal Operation
The passenger side crash 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 crash sensor for a signal that is out of the expected range. If the RCM detects an out-of-range signal from the passenger side crash 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 crash sensor mounting failure fault can be caused by:
^ a passenger side crash sensor internal fault.
^ a passenger side crash sensor mounting failure.
^ an RCM internal concern.