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 item "VSC/BR WARN BUZ" in the ACTIVE TEST and operate the skid control buzzer on the hand-held tester.
      VEHICLE CONDITION / TEST DETAILS CHART
      
      

      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 with 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: 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: Disconnecting Skid Control Buzzer Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE SKID CONTROL 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: 

      SPECIFICATION TESTER CONNECTION
      
      

      Tester Connection	Specified Condition
      S27-30 (BZ) - V8-1 (BZ)	Below 1 Ω

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

      Standard: 

      SPECIFICATION TESTER CONNECTION
      
      

      Tester Connection	Specified Condition
      S27-30 (BZ) - Body ground	10 kΩ or higher

      Fig 2: Checking Harness And Connector (Skid Control Buzzer - Skid Control ECU)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: REPLACE ABS & TRACTION ACTUATOR ASSY (See  REPLACEMENT  )