Pinpoint Tests AA: The Safety Belt Warning Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AA: The Safety Belt Warning Indicator Is Never/Always On

Normal Operation

The Restraints Control Module (RCM) monitors the safety belt position through the safety belt buckle switch. The RCM provides the safety belt buckle status to the Instrument Cluster (IC) over the High Speed Controller Area Network (HS-CAN) communication bus. If the IC does not receive the safety belt buckle switch status from the RCM for greater than 5 seconds, the IC sets DTC U0151 and defaults the safety belt warning indicator off. If the RCM message is deemed invalid by the IC for greater than 5 seconds, the IC sets DTC U2023 and defaults the safety belt warning indicator off.

This pinpoint test is intended to diagnose the following:

- RCM
- IC


PINPOINT TEST AA: THE SAFETY BELT WARNING INDICATOR IS NEVER/ALWAYS ON

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AA1 RETRIEVE THE RECORDED RCM DTCs FROM THE SELF-TEST


- Check for recorded RCM DTCs from the self-test.
- Are any DTCs recorded?

Yes
REFER to Supplemental Restraint System Testing and Inspection.

No
GO to AA2.

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AA2 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST


- Check for recorded IC DTCs from the self-test.
- Are any DTCs recorded?

Yes
For DTC U0151, GO to Pinpoint Test AP. Pinpoint Tests AP: DTC U0151

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

No
GO to AA3.

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AA3 CARRY OUT THE IC INDICATOR LAMP CONTROL 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. Command the safety belt warning indicator on and off. Observe the safety belt warning indicator.
- Does the safety belt warning indicator illuminate when commanded on and turn off when commanded off?

Yes
INSTALL a new RCM. REFER to Supplemental Restraint System Service and Repair. 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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