Test N: LFC 48/DTC B2444 - Driver Side Crash Sensor Internal Fault
N1:
N2:
Normal Operation
The driver 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 driver side air bag.
The RCM monitors the two-wire current loop to the driver side impact sensor for a signal that is out of the expected range. If the RCM detects a signal from the driver side impact sensor, indicating an internal fault, it will store Diagnostic Trouble Code (DTC) B2444 and flash a Lamp Fault Code (LFC) 48 (or a higher priority code if one exists) on the air bag indicator.
Possible Causes
A driver side impact sensor internal fault condition can be caused by:
^ damaged driver side impact sensor