Test L: DTC B1057 - Driver Air Bag Cross Link to Another Firing Loop

PINPOINT TEST L: DTC B1057 - DRIVER AIR BAG CROSS LINK TO ANOTHER FIRING LOOP

L1-L2:

L3-L4:

L4-L5:

L6-L7:

L7-L8:

L9-L10:

L10-L11:

Normal Operation
The restraints control module (RCM) monitors all the deployable devices for a cross link between the circuits of another deployable device. If the RCM detects a short between the circuits of the driver air bag module squib 1 and another deployable device, it will store a diagnostic trouble code (DTC) B1057 along with the DTC of the component it is cross linked to in memory and illuminate the air bag indicator.

Possible Causes
A cross link fault between the driver air bag module squib 1 and another deployable device can be caused by:
- damaged wiring, terminals or connectors.
- a faulted RCM.