Tests BB: DTC B2856 - Front Crash Sensor ID Fault
PINPOINT TEST BB: DTC B2856 - FRONT CRASH SENSOR ID FAULTBB1-BB4:
BB5-BB6:
Normal Operation
The restraints control module (RCM) checks the front impact severity sensor for correct application. If the RCM detects an incorrect front impact severity sensor, it will store diagnostic trouble code (DTC) B2856 in memory and illuminate the air bag indicator.
Possible Causes
A front impact severity sensor ID fault can be caused by:
- a faulty impact sensor.
- a faulted RCM.