Brake Warning Lamp

BRAKE WARNING LAMP





Component Function Check
1.CHECK BRAKE WARNING LAMP FUNCTION (1)
Check that brake warning lamp in combination meter turns ON for approx. 1 second after ignition switch is turned ON.

CAUTION:
Never start engine.
Is the inspection result normal?
YES - GO TO 2.
NO - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
2.CHECK BRAKE WARNING LAMP FUNCTION (2)
Check that brake warning lamp in combination meter turns ON/OFF when parking brake is operated.

NOTE:
Brake warning lamp turns ON when parking brake is operated (when parking brake switch is ON).
Is the inspection result normal?
YES - GO TO 3.
NO - Check parking brake switch system. Parking Brake Switch.
3.CHECK BRAKE WARNING LAMP FUNCTION (3)
Check that brake warning lamp in combination meter turns ON/OFF when brake fluid level switch is operated while brake fluid level in reservoir tank is with the specified level.

NOTE:
Brake warning lamp turns ON when brake fluid is less than the specified level (when brake fluid level switch is
ON).
Is the inspection result normal?
YES - INSPECTION END
NO - Check brake fluid level switch system. C1155.




Diagnosis Procedure
1.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
Perform the trouble diagnosis for ABS actuator and electric unit (control unit) power supply and ground circuit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace error-detected parts.
2.PERFORM THE SELF-DIAGNOSIS
With CONSULT-III.
Perform self-diagnosis for "ABS".
Is any DTC detected?
YES - Check the DTC. Testing and Inspection.
NO - GO TO 3.
3.CHECK BRAKE WARNING LAMP SIGNAL
With CONSULT-III.
1. Select "ABS", "DATA MONITOR" and "EBD WARN LAMP" according to this order.
2. Turn the ignition switch OFF.
3. Check that data monitor displays "On" for approx. 1 second after ignition switch is turned ON and then changes to "Off".

CAUTION:
Never start engine.
Is the inspection result normal?
YES - GO TO 4.
NO - Replace ABS actuator and electric unit (control unit). Service and Repair.
4.CHECK COMBINATION METER
Check combination meter. Scan Tool Testing and Procedures.
Is the inspection result normal?
YES - Replace ABS actuator and electric unit (control unit). Service and Repair.
NO - Repair or replace combination meter. Removal And Installation.