Test I: DTC B2294 - Restraint System - Curtain Fault

PINPOINT TEST I: DTC B2294 - RESTRAINT SYSTEM - CURTAIN FAULT

I1:

I2-I5:

I5-I7:

I7-I10:

I10-I11:

I12-I15:

I15-I17:

I17-I19:

I20-I21:

I22-I25:

I25-I27:

I28:

Normal Operation
The restraints control module (RCM) monitors all safety canopy module circuits for faults. The RCM will set a diagnostic trouble code (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 0.9 ohm or greater than 5 ohms. The normal expected resistance range is 1.23 to 3.31 ohms. If a loop resistance is between 0.9 and 1.23 or between 3.31 and 5 ohms, a DTC will not set but there exists a strong potential for an intermittent fault. If the RCM detects a fault on any of the safety canopy module circuits, it will store DTC B2294 in memory and send a message to the instrument cluster module to illuminate the air bag warning indicator.

Fault Conditions
The RCM monitors for the following fault conditions:
- Loop resistance less than 0.9 ohm (low resistance)
- Loop resistance greater than 5 ohms (circuit open)
- Circuit short to voltage
- Circuit short to ground

Possible Causes
A safety canopy module fault can be caused by:
- damaged wiring, terminals or connectors.
- a faulty safety canopy module.
- RCM is faulted.