Test L: LFC 33/DTC B1933- Passenger Air Bag Resistance High

L1 - L2:

L3:

L4:

L5 - L6:

Normal Operation

WARNING: DO NOT ATTEMPT A DIRECT RESISTANCE MEASUREMENT OF THE AIR BAG MODULE. A DIRECT RESISTANCE MEASUREMENT OF THE AIR BAG MODULE CAN CAUSE AIR BAG DEPLOYMENT, WHICH CAN RESULT IN PERSONAL INJURY. FOLLOW THE DIAGNOSTIC PROCEDURE TO DETERMINE IF THE AIR BAG MODULE RESISTANCE IS HIGHER THAN NORMAL.

The air bag Electronic Crash Sensor (ECS) monitors the resistance of the passenger air bag ignitor by measuring the resistance between Pins C2O0-14 and C200-28. If the ECS detects high resistance, the ECS will store Diagnostic Trouble Code (DTC) B1933 in memory and flash Lamp Fault Code (LFC) 33 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
^ A poor connection or corrosion in the passenger air bag module circuits or connections.
^ An open circuit or high resistance in the wiring harness.
^ An open circuit or high resistance in the passenger air bag module.