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Home >> Toyota >> 2005 >> Camry Base, Automatic >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Brakes - Abs With EBD (BOSCH Made) - Diagnostics >> Abs Warning Light Circuit (Remains On) >> Inspection Procedure

Inspection Procedure

  1. CHECK DTC (See  PRE-CHECK   ) 
    NORMAL AND MALFUNCTION CODE

    A Normal Code
    B Malfunction Code
    1. B: REPAIR CIRCUIT INDICATED BY OUTPUT DTC 

    A: Go to Next Step. 

  2. INSPECT CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED 
    1. NO: CONNECT CONNECTOR TO ECU 

    YES: Go to Next Step. 

  3. INSPECT SKID CONTROL ECU CONNECTOR(IG1 TERMINAL VOLTAGE) 

    WHEN USING HAND-HELD TESTER 

    1. Connect the hand-held tester to the DLC3.
    2. Start the engine.
    3. Select the DATA LIST mode on the hand-held tester.
      DATA LIST

      Item Measurement Item / Range (Display) Normal Condition
      IG VOLTAGE ECU power supply voltage / NORMAL or TOO LOW NORMAL: 9.8 V or over TOO LOW: Below 9.8 V
    4. Read the voltage condition output from the ECU displayed on the hand-held tester.

      Standard: 

      "Normal" is displayed. 

    WHEN NOT USING HAND-HELD TESTER 

    1. Disconnect the skid control ECU connector.
    2. Turn the ignition switch to the ON position.
    3. Measure the voltage according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION (1 OF 2)

      Tester Connection Specified Condition
      S1-18 (IG1)-S1-4 (GND1) 11 to 14 V
      S1-18 (IG1) - S1-1 (GND2) 11 to 14 V
      Fig 1: Inspecting Skid Control ECU Connector (IG1 Terminal Voltage)
      G02633546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Go to step   5 

    NG: Go to Next Step. 

  4. INSPECT SKID CONTROL ECU CONNECTOR (GND TERMINAL CONTINUITY) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION (2 OF 2)

      Tester Connection Specified Condition
      S1-4 (GND1) - Body ground Below 1 Ω
      S1-1 (GND2) - Body ground Below 1 Ω
      Fig 2: Inspecting Skid Control ECU Connector (GND Terminal Continuity)
      G02633547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step. 

  5. INSPECT COMBINATION METER ASSEMBLY (ABS WARNING LIGHT) 
    1. NG: REPAIR OR REPLACE COMBINATION METER 

    OK: REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 

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