Pinpoint Test G: The Safety Belt Warning Indicator Is Inoperative (Chime Is Operative)/Does Not Operate Correctly

Instrumentation, Message Center and Warning Chimes

Pinpoint Test G: The Safety Belt Warning Indicator Is Inoperative (Chime Is Operative)/Does Not Operate Correctly

Normal Operation

The safety belt switch is hardwired to the Restraints Control Module (RCM). The RCM sends a signal on circuit 1083 (LB/BK) to the Lighting Control Module (LCM) when the safety belt is fastened or unfastened, communicating the safety belt switch status. The LCM sends the safety belt switch status to the Instrument Cluster (IC) over the Standard Corporate Protocol (SCP) communication network, to illuminate the safety belt warning indicator.

This pinpoint test is intended to diagnose the following:

- LCM
- IC



PINPOINT TEST G: THE SAFETY BELT WARNING INDICATOR IS INOPERATIVE (CHIME IS OPERATIVE)/DOES NOT OPERATE CORRECTLY

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G1 CHECK THE SAFETY BELT CHIME OPERATION


- Check the operation of the safety belt chime for correct operation.
- Does the safety belt chime operate correctly?

Yes
GO to G2.

No
Go To Pinpoint Test AI. Pinpoint Tests AI: The Air Bag/Safety Belt Warning Chime Is Inoperative

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G2 CARRY OUT THE IC INDICATOR LAMP ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC safety belt warning indicator (SBLT_LAMP) active command on and off. Observe the safety belt warning indicator.
- Does the safety belt warning indicator illuminate when selected on, and turn off when selected off?

Yes
INSTALL a new LCM. TEST the system for normal operation.

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

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