Inspection Procedure
HINT: Start the inspection from step 1 when using the hand-held tester, and start from step 2 when not using the hand-held tester.
- PERFORM ACTIVE TEST BY HAND-HELD TESTER (SKID CONTROL BUZZER)
- Connect the hand-held tester to the DLC3.
- Start the engine.
- Select "VSC/BR WARN BUZ" in the ACTIVE TEST and operate the skid control buzzer on the hand-held tester.
- Check that skid control buzzer sounds "ON" and "OFF" with the hand-held tester.
VEHICLE CONDITION / TEST DETAILS REFERENCEItem Vehicle Condition / Test Details Diagnostic Note VSC / BR WARN BUZ Turns VSC / BRAKE warning buzzer ON / OFF Buzzer can be heard - NG : Go to step 2
- OK : REPLACE BRAKE ACTUATOR ASSY (See REPLACEMENT )
NOTE: When replacing the brake actuator assy, perform the zero point calibration (see CALIBRATION ). - INSPECT SKID CONTROL BUZZER ASSY
- Disconnect the skid control buzzer connector.
- Apply positive (+) battery voltage to terminals 1 and 2 of the skid control buzzer connector. Check that the buzzer sounds.
Standard: The skid control buzzer sound is heard.
- NG : REPLACE SKID CONTROL BUZZER ASSY
- OK : GO TO NEXT STEP.
- CHECK WIRE HARNESS (SKID CONTROL BUZZER - SKID CONTROL ECU)
- Disconnect the skid control buzzer connector and the skid control ECU connector.
- Measure the resistance according to the table below.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition BZ (S1-30) - BZ (V5-1) Below 1 Ω BZ (S1-30) - Body ground 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG : REPAIR OR REPLACE HARNESS AND CONNECTOR
- OK : REPLACE BRAKE ACTUATOR ASSY (See REPLACEMENT )
NOTE: When replacing the brake actuator assy, perform the zero point calibration (see CALIBRATION ).