Test Q: DTC B1878 - Seat Belt Driver Pretensioner Circuit Short to Battery Fault

PINPOINT TEST Q: DTC B1878 - SEAT BELT DRIVER PRETENSIONER CIRCUIT SHORT TO BATTERY FAULT

Q1-Q2:

Q3-Q5:

Normal Operation
The restraints control module (RCM) checks all of the safety belt pretensioners for faults. If the RCM detects a short to voltage on a driver safety belt pretensioner circuit, it will store diagnostic trouble code (DTC) B1878 in memory and illuminate the air bag indicator.

Fault Conditions
The RCM monitors for the following fault condition:
- Circuit short to voltage

Possible Causes
A driver safety belt pretensioner short to voltage fault can be caused by:
- damaged wiring, terminals or connectors.
- a faulted RCM.