Tests AK: DTC B2227 - Front Crash Sensor Driver Communications Fault

PINPOINT TEST AK: DTC B2227 - FRONT CRASH SENSOR DRIVER COMMUNICATIONS FAULT

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Normal Operation
The restraints control module (RCM) checks the front impact severity sensor circuits for faults. If the RCM detects one of the faults on the front impact severity sensor circuits, it will store diagnostic trouble code (DTC) B2227 in memory and illuminate the air bag indicator.

Fault Conditions
The RCM monitors for the following fault conditions:
- low resistance.
- circuit open.
- circuit short to voltage.
- circuit short to ground.

Possible Causes
A front crash sensor driver communications fault can be caused by:
- damaged wiring, terminals or connectors.
- a faulty front impact severity sensor.
- incorrect sensor mounting.
- a faulted RCM.