B1870

DTC B1870 - AIR BAG INDICATOR CIRCUIT SHORT TO BATTERY

Step 1 - 2:

Step 3 - 4:

Step 5:

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.

Normal Operation
If the restraints control module detects an open or short to battery on the air bag warning indicator circuit, it will store diagnostic trouble code (DTC) B1870 in memory.

If any other DTCs are detected with this DTC active, the secondary air bag warning will be activated.

Possible Causes
An air bag indicator circuit short to battery can be caused by:
- damaged wiring, terminals or connectors.
- instrument cluster module is faulted.
- RCM is faulted.

WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.

WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow these instructions may result in the inadvertent deployment of the safety canopy and risk of 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.

WARNING: Never probe the electrical connector on a safety canopy module. Doing so can result in safety canopy deployment.

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

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.