Inspection Procedure 11: Parking brake reminder buzzer does not sound.
Inspection Procedure 12: Brake warning lamp does not illuminate.


caution Before replacing the combination meter, be sure to check that the power supply circuit, earth circuit, and communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM


If the parking reminder buzzer does not sound or the brake warning lamp does not come on at a speed above 8 km/h with the parking brake switch ON, the parking brake switch input circuit, the vehicle speed signal circuit, the combination meter, the wiring harness or its connector may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the speedometer.


Check that the speedometer in the combination meter operates normally.

Q. Is the check result normal?

Go to Step 2.

Troubleshoot the combination meter. Refer to .

STEP 2. Check the parking brake switch.


Refer to GROUP 36 - On-vehicle Service, Parking Brake Switch Check .

Q. Is the check result normal?

Go to Step 3.

Replace the parking brake switch.

STEP 3. Check of short to power supply, and open circuit in BRK line between combination meter connector and parking brake switch connector.


Q. Is the check result normal?

Go to Step 4.

Repair the connector(s) or wiring harness.

STEP 4. M.U.T.-III Special Function


Using M.U.T.-III, select "Test" from the special function of the combination meter. Execute the following item to check the liquid crystal display.

Q. Is the check result normal?

Go to Step 5.

Replace the combination meter, and then go to Step 5.

STEP 5. Retest the system.


The parking brake reminder buzzer function should work normally.

Q. Is the check result normal?

The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to GROUP 00 / How to Cope with Intermittent Malfunction ).

Go to Step 1.