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.

1. PERFORM ACTIVE TEST BY HAND-HELD TESTER (SKID CONTROL BUZZER) 
   1. Connect the hand-held tester to the DLC3.
   2. Start the engine.
   3. Select the "VSC/BR WARN BUZ" in the ACTIVE TEST and operate the skid control buzzer by the hand-held tester.
      ACTIVE TEST
      
      

      Item	Vehicle Condition / Test Details	Diagnostic Note
      VSC / BR WARN BUZ	Turns VSC / BRAKE warning buzzer ON / OFF	Buzzer can be heard

   4. Check that skid control buzzer sounds by operating the hand-held tester.

   OK: The skid control buzzer sounds in accordance with operation of the hand-held tester. 

   1. NG: Go to step 2 
   2. OK: GO TO NEXT STEP. 

      REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  ) 

2. INSPECT SKID CONTROL BUZZER ASSY 
   1. Disconnect the skid control buzzer connector.
   2. Apply a battery positive voltage to terminals 1 and 2 of the skid control buzzer connector, and check that the buzzer sounds.

   OK: The skid control buzzer sound should be heard. 

   Fig 1: Checking Skid Control Buzzer Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE BUZZER ASSY 
   2. OK: GO TO NEXT STEP. 
3. CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU) 
   1. Disconnect the skid control buzzer connector and the skid control ECU connector.
   2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SKID CONTROL BUZZER AND SKID CONTROL ECU TERMINALS RESISTANCE
      
      

      Tester Connection	Specified Condition
      S1-30(BZ)-V6-1 (BZ)	Below 1 Ω

   3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SKID CONTROL BUZZER AND BODY GROUND RESISTANCE
      
      

      Tester Connection	Specified Condition
      S1-30 (BZ) - Body ground	10 kΩ or higher

      Fig 2: Identifying Skid Control Buzzer And Skid Control ECU Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: GO TO NEXT STEP. 

      REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  )