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Home >> Lexus >> 2004 >> RX 330 FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs With EBD & BA & TRAC & VSC System - Diagnosis >> Skid Control Buzzer Circuit >> Inspection Procedure

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.
    4. Check that skid control buzzer sounds "ON" and "OFF" with the hand-held tester.

    NG: Go to step 2 

    OK: NO PROBLEM 

  2. INSPECT SKID CONTROL BUZZER ASSY 
    1. Disconnect the skid control buzzer connector V8.
    2. Apply a battery positive voltage to the terminals 1 and 2 of the skid control buzzer connector, and check that the buzzer sounds.
    Fig 1: Inspecting Skid Control Buzzer Assy
    G01396124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SKID CONTROL BUZZER ASSY 

    OK: GO TO NEXT STEP. 

  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU) 
  1. Disconnect the skid control buzzer connector V8 and the skid control ECU connector S1.
  2. Fig 2: Disconnecting Skid Control Buzzer Connector V8 And Skid Control ECU Connector S1
    G01396127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Measure the resistance according to the value(s) in Fig 3 .

    Standard: 

    Fig 3: Resistance Standard Table (1 Of 2)
    G01396125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Measure the resistance according to the value(s) in Fig 4 .

Standard: 

Fig 4: Resistance Standard Table (2 Of 2)
G01396126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ABS & TRACTION ACTUATOR ASSY (See  REPLACEMENT  )