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Tests AB: LFC 43/DTC B2440 - Pass. Side Crash Sensor Mounting Fault

AB1:






AB2:






AB3 - AB4:






Normal Operation
The Restraints Control Module (RCM) monitors the communications link to the passenger side crash sensor at RCM C310b pins 18 and 19, circuits 1263 (WH) and 1264 (BN). If the RCM receives a mounting failure message from the passenger side crash sensor, it will store Diagnostic Trouble Code (DTC) B2440 in memory and flash Lamp Fault Code (LFC) 43 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A driver side passenger side sensor mounting failure can be caused by:
^ a passenger side crash sensor internal fault.
^ a passenger side crash sensor mounting failure.
^ an RCM internal concern.