Test F: DTC B1049 - Passenger Seat Belt Pretensioner Cross Link to Another Firing Loop

PINPOINT TEST F: DTC B1049 - PASSENGER SEAT BELT PRETENSIONER CROSS LINK TO ANOTHER FIRING LOOP

F1-F2:

F2-F3:

F4-F5:

F5-F6:

F7-F8:

F8-F10:

F10-F11:

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 passenger safety belt pretensioner and another deployable device, it will store a diagnostic trouble code (DTC) B1049 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 passenger safety belt pretensioner and another deployable device can be caused by:
- damaged wiring, terminals or connectors.
- a faulted RCM.