D: LFC 16/DTC B1920 - Passenger Air Bag Circuit Failure

Normal Operation
The air bag Electronic Crash Sensor (ECS) module monitors the voltage of Circuits 607 (LB/O) and 616 (PK/BK) at Pins C200-14 and C200-28. If the ECS detects a short to ground or battery on either of these pins, the ECS will store DTC B1920 in memory and flash LFC 16 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger air bag circuit failure can be caused by:
- a short to ground or battery on Circuit 607 (LB/O).
- a short to ground or battery on Circuit 616 (PK/BK).
- a short to ground or battery on the passenger air bag module.

Pinpoint Test Steps:

D1 - D2:

D3:

D4 - D5:

D6 - D7: