Pinpoint Test AK: The Safety Belt Warning Chime Is Inoperative/The Belt-Minder(R) Feature Does Not Operate

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AK: The Safety Belt Warning Chime Is Inoperative/The Belt-Minder(R) Feature Does Not Operate

Normal Operation

The Instrument Panel Cluster (IPC) receives the safety belt and Belt-Minder(R) requests from the Restraints Control Module (RCM) over the High Speed Controller Area Network (HS-CAN). The safety belt warning chime sounds for approximately 6 seconds when the driver safety belt is not fastened and the ignition is changed from the OFF or ACC state to the RUN or START state.

The Belt-Minder(R) feature supplements the safety belt warning function and is enabled after the safety belt warning is complete. The Belt-Minder(R) simultaneously sounds the chime and illuminates the safety belt warning lamp in the IPC (Instrument Panel Cluster) once the vehicle speed has exceeded 5 km/h (3 mph), and remains active for 5 minutes from the time it is started.

There are 2 Belt-Minder(R) strategies used and implemented by the IPC (Instrument Panel Cluster) as commanded by the RCM (Restraints Control Module). The 2 strategies are designed to provide an increased intensity level of the chime. Belt-Minder(R) A provides 6 one-second sequences of 0.5-second on/0.5-second off for the first minute of the Belt-Minder(R) warning. Belt-Minder(R) B provides 6 one-second sequences of 0.2-second on/0.2-second off then 0.3-second on/0.3-second off for the remainder of the Belt-Minder(R) warning.

NOTE: Make sure the safety belt/Belt-Minder(R) chime operation is verified with the vehicle moving at least 9.7 km/h (6 mph).

This pinpoint test is intended to diagnose the following:

- Belt-Minder(R) deactivated

- Safety belt warning indication concern

- Speedometer concern

- IPC (Instrument Panel Cluster)

PINPOINT TEST AK : THE SAFETY BELT WARNING CHIME IS INOPERATIVE/THE BELT-MINDER(R) FEATURE DOES NOT OPERATE

AK1 CHECK THE HEADLAMPS ON WARNING CHIME OPERATION

- Ignition OFF.

- Place the headlamp switch in the HEADLAMP position.

- Open the LH front door and observe the headlamps on warning chime operation.

Does the headlamps on warning chime operate correctly?

Yes
GO to AK2.

No
INSTALL a new IPC (Instrument Panel Cluster). REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

AK2 CHECK THE DRIVER SAFETY BELT BUCKLE SWITCH

- Ignition ON.

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

- Monitor the RCM (Restraints Control Module) driver safety belt buckle PID (SBELT_D_ST) while buckling and unbuckling the driver safety belt.

Does the PID display BUCKLED with the safety belt buckled and UNBUCKLED with the safety belt unbuckled?

Yes
GO to AK3.

No
REFER to Restraints and Safety Systems &/or Air Bag Systems.

AK3 CHECK THE SAFETY BELT WARNING INDICATOR FOR CORRECT OPERATION

- Ignition ON.

- Within one minute, buckle then unbuckle the LH front safety belt.

- With the engine running, verify the safety belt warning indicator illuminates with the safety belt unbuckled and turns off when buckled.

Does the safety belt warning indicator operate correctly?

Yes
GO to AK4.

No
GO to Pinpoint Test Z Pinpoint Test Z: The Safety Belt Warning Indicator Is Never/Always On.

AK4 CHECK THE SPEEDOMETER OPERATION

- Verify the speedometer is operating correctly.

Does the speedometer operate correctly?

Yes
GO to AK5.

No
GO to Pinpoint Test E Pinpoint Test E: The Speedometer Is Inoperative.

AK5 CHECK THE BELT-MINDER(R) CONFIGURATION

- Verify the Belt-Minder(R) is activated or configured on for the seating position in question. Refer to Belt-Minder(R) Deactivating/Activating Service and Repair to configure without a scan tool.

Is the Belt-Minder(R) activated for the seating position in question?

Yes
If the Belt-Minder(R) is always on above 5 km/h (3 mph) with the safety belt unfastened, the system is operating normally.

If the Belt-Minder(R) is always on with the safety belt fastened or never on with the safety belt unfastened above 9.7 km/h (6 mph), INSTALL a new RCM (Restraints Control Module). TEST the system for normal operation.

No
ACTIVATE the Belt-Minder(R) for the seating position in question. REFER to Belt-Minder(R) Deactivating/Activating Service and Repair. TEST the system for normal operation.