DTC B1401: Driver's Air Bag Module (1st squib) System (Squib Circuit Open); DTC B1481: Driver's Air Bag Module (2nd squib) System (Squib Circuit Open): Notes
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION:
If DTC B1401 <1st squib> or B1481 <2nd squib> is stored in the SRS-ECU, always diagnose the CAN main bus line.
When DTC B1401 is stored in the following diagnosis, check the 1st squib circuit. When DTC B1481 is stored, check the 2nd squib circuit.