Pinpoint Tests AL: The Parking Brake Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AL: The Parking Brake Warning Chime Is Inoperative

Normal Operation

The Instrument Panel Cluster (IPC) uses vehicle speed data sent from the ABS module over the High Speed Controller Area Network (HS-CAN) and parking brake switch status input to the IPC to determine when to turn on the sound the parking brake warning chime.

The parking brake warning chime sounds when the ignition is in the ON state, the parking brake is engaged, and the vehicle speed is greater than 5 km/h (3 mph). The parking brake warning chime stops sounding and resets if the parking brake is released, the ignition is not in the ON state, the vehicle speed is below 5 km/h (3 mph), or after 90 seconds from the time the chime is activated.

NOTE: Make sure the parking brake warning chime operation is verified with the vehicle moving at least 5 km/h (3 mph) with the parking brake slightly applied (just enough to turn the brake warning indicator on without damaging the rear brakes).

This pinpoint test is intended to diagnose the following:

- Brake warning indication concern
- IPC

PINPOINT TEST AL: THE PARKING BRAKE WARNING CHIME IS INOPERATIVE

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AL1 CHECK THE SAFETY BELT WARNING CHIME OPERATION

- Ignition OFF.
- Ignition ON.
- Monitor the safety belt warning chime when the ignition switch is transitioned from OFF to RUN.
- Does the safety belt warning chime operate for approximately 6 seconds?

Yes
GO to AL2.

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

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AL2 CHECK THE BRAKE WARNING INDICATOR OPERATION

- Apply the parking brake.
- Ignition ON.
- Observe the brake warning indicator.
- Does the brake warning indicator turn on?

Yes
GO to AL3.

No
GO to Pinpoint Test L. Pinpoint Test L: The Brake Warning Indicator Is Never On

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AL3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

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

Yes
REFER to DTC Chart.

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

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