B1925

DTC B1925 / LFC 16 - PASSENGER AIR BAG CIRCUIT SHORT TO BATTERY OR IGNITION

Normal Operation
The restraints control module (RCM) checks for passenger side air bag circuit shorts to battery or ignition by monitoring the voltage of the (LB/O) wire and (P/B) wire at pins 6 and 7. If the RCM detects a short to battery or ignition on either of these pins, it will store a diagnostic trouble code (DTC) B1925 in memory and flash a lamp fault code (LFC) 16 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger side air bag circuit short to battery or ignition could be caused by:
- wiring, terminals, or connectors.
- a short to battery or ignition on the passenger side air bag module.
- a faulted RCM.

WARNING: If the supplemental restraint system (SRS) is being serviced, the system must be deactivated and restraint system diagnostic tools must be installed.

The air bag restraint system diagnostic tools must be removed and the air bag modules reconnected when the system is reactivated to avoid non-deployment in a collision, resulting in possible personal injury.

WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.

WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.

NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road.

Step 1 - 2:

Step 3 - 6: