DTC B1400: Driver's Air Bag Module (1st squib) System (Short Circuit Between Squib Circuit Terminals); DTC B1480: Driver's Air Bag Module (2nd squib) System (Short Circuit Between Squib Circuit Terminals): Notes
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION:
If DTC B1400 <1st squib> or B1480 <2nd squib> is stored in the SRS-ECU, always diagnose the CAN bus lines.
When DTC B1400 is stored in the following diagnosis, check the 1st squib circuit. When DTC B1480 is stored, check the 2nd squib circuit.