Pinpoint Test W: The Air Bag Warning Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test W: The Air Bag Warning Indicator Is Never/Always On

Normal Operation

The Instrument Cluster (IC) receives the Supplemental Restraint System (SRS) status from the Restraints Control Module (RCM) over the High Speed Controller Area Network (HS-CAN) communication bus. If an SRS (Supplemental Restraint System) concern is detected, the RCM (Restraints Control Module) sets a DTC and sends a message to the IC (Instrument Cluster) to turn on the air bag warning indicator. If the SRS (Supplemental Restraint System) status message is missing or is deemed invalid for more than 5 seconds, the IC (Instrument Cluster) sets DTC U0151 and defaults the air bag warning indicator on.

This pinpoint test is intended to diagnose the following:

- RCM (Restraints Control Module)

- IC (Instrument Cluster)

PINPOINT TEST W : THE AIR BAG WARNING INDICATOR IS NEVER/ALWAYS ON

W1 CARRY OUT THE IC (Instrument Cluster) RESTRAINTS OUTPUT CONTROL ACTIVE COMMAND USING THE SCAN TOOL

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: IC (Instrument Cluster) DataLogger.

- Select the IC (Instrument Cluster) air bag warning indicator (AIRBAG) active command. Command the air bag warning indicator on and off. Observe the air bag warning indicator.

Does the air bag warning indicator illuminate when commanded on and turn off when commanded off?

Yes
GO to W2.

No
INSTALL a new IC (Instrument Cluster). REFER to Instrument Cluster (IC) . TEST the system for normal operation.

W2 RETRIEVE THE RECORDED DTCs FROM THE RCM (Restraints Control Module) SELF-TEST

- Check for recorded RCM (Restraints Control Module) DTCs from the self-test.

Are any RCM (Restraints Control Module) DTCs recorded?

Yes
REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
GO to W3.

W3 RETRIEVE THE RECORDED DTCs FROM THE IC (Instrument Cluster) SELF-TEST

- Check for recorded IC (Instrument Cluster) DTCs from the self-test.

Are any DTCs recorded?

Yes
For DTC B1318, GO to Pinpoint Test AT Pinpoint Test AT: DTC B1318.

For DTC U0151, GO to Pinpoint Test BD Pinpoint Test BD: DTC U0151.

For all other DTCs, REFER to DTC Charts Instrumentation, Message Center and Warning Chimes.

No
INSTALL a new RCM (Restraints Control Module). TEST the system for normal operation.