Pinpoint Test A: The Air Bag Warning Indicator is Illuminated Continuously

Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS)

Pinpoint Test A: The Air Bag Warning Indicator is Illuminated Continuously

Normal Operation

The Instrument Panel Cluster (IPC) illuminates the air bag indicator continuously for 6 seconds. If the Supplemental Restraint System (SRS) is fault free, the air bag warning indicator turns off and remains off. If a fault is detected in the SRS (Supplemental Restraint System), the air bag warning indicator illuminates and remains illuminated for the rest of the ignition cycle until the fault is no longer detected. The Restraints Control Module (RCM) communicates to the IPC (Instrument Panel Cluster) module via the High Speed Controller Area Network (HS-CAN). The IPC (Instrument Panel Cluster) illuminates the air bag warning indicator based on messaging from the RCM (Restraints Control Module) or if there is no communication between the RCM (Restraints Control Module) and IPC (Instrument Panel Cluster).

This pinpoint test is intended to diagnose the following:

- IPC (Instrument Panel Cluster)

- RCM (Restraints Control Module)

PINPOINT TEST A : THE AIR BAG WARNING INDICATOR IS ILLUMINATED CONTINUOUSLY

WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy(R) and cause serious personal injury or death.
WARNING: Always tighten the fasteners of the restraints control module (RCM) and impact sensor (if equipped) to the specified torque. Failure to do so may result in incorrect restraint system operation, which increases the risk of personal injury or death in a crash.
NOTE:
Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test. Inspection and Verification
NOTE:
The SRS (Supplemental Restraint System) must be fully operational and free of faults before releasing the vehicle to the customer.

A1 RETRIEVE RCM (Restraints Control Module) DTCs

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Self Test- RCM (Restraints Control Module).

Were any DTCs retrieved on-demand during self-test?

Yes
If DTCs were retrieved, GO to the DTC Charts for diagnostic direction Air Bag Systems.

Do not clear any DTCs until all DTCs have been resolved.
No
If the RCM (Restraints Control Module) does communicate with the scan tool, REFER to Instrument Panel, Gauges and Warning Indicators to diagnose the IPC (Instrument Panel Cluster) concern.

If the RCM (Restraints Control Module) does not communicate with the scan tool, REFER to Information Bus to diagnose no power to the scan tool.

Do not clear any DTCs until all DTCs have been resolved.