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Inspection Procedure

NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration (See CALIBRATION ).
  1. INSPECT DLC3 TERMINAL VOLTAGE (TC TERMINAL VOLTAGE) 
    1. Turn the ignition switch on (IG).
    2. Measure the voltage according to the value (s) in the table below.

      Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      D20-13 (TC) - Body ground Ignition switch on (IG) 10 to 14 V
    3. Measure the resistance according to the value (s) in the table below.
    Fig 1: Identifying Terminal CG And TC Of DLC3
    G05001607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Specified Condition
    D20-4 (CG) - Body ground Below 1 Ω

    NG: Go to step  4

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (ECM TO DLC3) 
    1. Disconnect the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      A55-27 (TC) - D20-13 (TC) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

    Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Specified Condition
    D20-13 (TC) - Body ground 10 kΩ or higher
    Fig 2: Identifying D20 DLC3 And ECM A55 Connectors
    G06128752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TC TERMINAL CIRCUIT) 

    OK: Go to next step 

  3. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

    Result 

    RESULT REFERENCE

    Result Proceed to
    DTC Is not output A
    DTC Is output B

    HINT:

    If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE ).

    B: REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

    A: REPLACE ABS & TRACTION ACTUATOR ASSEMBLY 

  4. CHECK HARNESS AND CONNECTOR (ECM TO DLC3) 
    1. Disconnect the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      A55-27 (TC) - D20-13 (TC) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

    Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Specified Condition
    D20-13 (TC) - Body ground 10 kΩ or higher
    Fig 3: Identifying D20 DLC3 And ECM A55 Connectors
    G06128753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TC CIRCUIT) 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (DLC3 TO BODY GROUND) 
    1. Measure the resistance according to the value (s) in the table below.

    Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Specified Condition
    D20-4 (CG) - Body ground Below 1 Ω
    Fig 4: Identifying Terminal CG Of D20 DLC3
    G05001606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) 

    OK: Go to next step 

  6. CHECK ECM (DLC3 (TC) INPUT) 
    1. Using SST, connect the terminals TC and CG of the DLC3.

      SST 09843-18040 

      Fig 5: Identifying Terminal CG And TC Of DLC3
      G05001607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check that the engine warning light is blinking.

    Result 

    RESULT REFERENCE

    Result Proceed to
    Engine warning light is blinking A
    Engine warning light Is not blinking B

    B: REPLACE ECM 

    A: Go to next step 

  7. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

    Result 

    RESULT REFERENCE

    Result Proceed to
    DTC is not output A
    DTC Is output B

    HINT:

    If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE ).

    B: REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

    A: REPLACE ABS & TRACTION ACTUATOR ASSEMBLY 

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