Test J: LFC 19/21/ DTC B2293 - Restraint System - Air Bag Fault
PINPOINT TEST J: LFC 19/21/ DTC B2293 - RESTRAINT SYSTEM - AIR BAG FAULTNormal Operation
The restraints control module (RCM) monitors all front air bag module circuits for faults. The RCM will set a DTC if a short to battery or short to ground fault is detected. The RCM will also set a DTC if the loop resistance is less than 1.36 ohms or greater than 4.70 ohms for the driver air bag and less than 1.04 ohms or greater than 3.72 ohms for the passenger air bag. The normal expected resistance range of driver air bag is 1.84 to 3.96 ohms and 1.50 to 3.04 ohms for the passenger air bag. If a driver air bag loop resistance is between 1.36 and 1.84 or between 3.96 and 4.70 ohms and a passenger air bag resistance is between 1.04 and 1.50 or between 3.04 and 3.72 ohms, a DTC may or may not set, yet there exists a strong potential for an intermittent fault. If the RCM detects a fault on any of the front air bag circuits, it will store DTC B2293 in memory and send a message to the instrument cluster (IC) module to flash LFC 19 or 21 (or higher priority code if one exists) on the air bag warning indicator.
Part 1:
Part 2:
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Clockspring
- Driver air bag module
- Passenger air bag module
- RCM
J1:
J1-J4:
J4-J6:
J6-J7:
J7-J9:
J10-J12:
J12-J14:
J14-J17:
J17-J19:
J19-J21:
J22-J23:
J24-J25:
J26-J27:
J28-J30:
J30-J33:
