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

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test R: 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 Panel Cluster (IPC) over the High Speed Controller Area Network (HS-CAN) communication bus.

If the IPC does not receive the safety belt buckle switch status from the RCM for less than 5 seconds, the IPC defaults the safety belt warning indicator to the last on/off state, based upon the last known good safety belt status message received.

If the IPC does not receive the safety belt status from the RCM for greater than 5 seconds, the IPC sets DTC U0151:00 and defaults the safety belt warning indicator off.

This pinpoint test is intended to diagnose the following:

- RCM
- IPC


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

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R1 RETRIEVE THE RECORDED DTCs FROM THE RCM SELF-TEST


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

Yes
REFER to Supplemental Restraint System Description and Operation.

No
GO to R2.

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R2 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST


- Check for recorded DTCs from the IPC self-test.
- Is DTC U0151:00 recorded?

Yes
GO to Pinpoint Test AZ. Pinpoint Tests AZ: DTC U0151:00

No
GO to R3.

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R3 CARRY OUT THE IPC INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC DataLogger .
- Select the IPC safety belt warning indicator (SBLT_LAMP) active command. Command the safety belt warning indicator on and off while observing 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 IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.

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