Test N
PINPOINT TEST N: DTC B2296 - RESTRAINT SYSTEM - IMPACT SENSOR FAULTLamp Fault Codes (LFCs)
The lamp fault codes (LFCs) indicate the specific flagged faults associated with diagnostic trouble code (DTC) B2296.
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Normal Operation
The impact sensor(s) provide data to the RCM for use in calculating impact severity. This is accomplished using various electrical and electro-mechanical sensor(s) throughout the vehicle.
The restraints control module (RCM) checks all of the impact sensor circuits for faults. If the RCM detects one of the following faults on any of the impact sensor circuits, it will store diagnostic trouble code (DTC) B2296 in memory and, depending on the fault, flash a lamp fault code (LFC) on the air bag indicator.
Fault Conditions
The RCM monitors for the following fault conditions:
- low resistance.
- high resistance or circuit open.
- circuit short to voltage.
- circuit short to ground.
Possible Causes
A impact sensor fault can be caused by:
- faulted wiring, terminals, or connectors.
- a faulted impact sensor.
- incorrect sensor mounting.
- a faulted RCM.