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Inspection Procedure

NOTE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration (see INITIALIZATION  ).
  1. CHECK DTC FOR ALL SYSTEM 
    1. Clear the DTC (see DTC CHECK/CLEAR  ).
    2. Check for the DTC (see DTC CHECK/CLEAR  ).

      Result 

      RESULT REFERENCE

      Result Proceed to
      DTC is not output A
      DTC (CAN communication system) is output B
      DTC (LIN communication system) is output C

    B: GO TO CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    C: GO TO LIN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    A: GO TO NEXT STEP 

  2. PERFORM ACTIVE TEST BY INTELLIGENT TESTER OR TECHSTREAM (SLIP INDICATOR LIGHT) 
    1. Connect the intelligent tester or Techstream to the DLC3.
    2. Turn the engine switch on ( (IG).
    3. Select the ACTIVE TEST mode on the intelligent tester or Techstream.
      1. Intelligent tester

        Meter ECU: 

        METER ECU

        Tester Display Test Part Control Range Diagnostic Note
        SLIP INDIC Turns slip indicator light ON / OFF Confirm that the vehicle is stopped and engine idling
      2. Techstream

        Meter ECU: 

        METER ECU

        Tester Display Test Part Control Range Diagnostic Note
        Indicat. Lamp Slip Turns slip indicator light ON / OFF Confirm that the vehicle is stopped and engine idling
    4. Check that the slip indicator light turns on or off when using the intelligent tester.

      OK: The slip indicator light turns on or off in accordance with the intelligent tester. 

      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  ).

    NG: GO TO METER AND GAUGE SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    OK: GO TO NEXT STEP 

  3. PERFORM ACTIVE TEST BY INTELLIGENT TESTER OR TECHSTREAM (SLIP INDICATOR LIGHT) 
    1. Connect the intelligent tester or Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Select the ACTIVE TEST mode on the intelligent tester or Techstream.
      1. Intelligent tester

        Skid control ECU: 

        SKID CONTROL ECU

        Tester Display Test Part Control Range Diagnostic Note
        SLIP INDI LAMP Turns slip indicator light ON / OFF Observe combination meter
      2. Techstream

        Skid control ECU: 

        SKID CONTROL ECU

        Tester Display Test Part Control Range Diagnostic Note
        Slip Indicator Lamp Turns slip indicator light ON / OFF Observe combination meter
    4. Check that the slip indicator light turns on or off when using the intelligent tester or Techstream.

      OK: The slip indicator light turns on or off in accordance with the intelligent tester or Techstream. 

      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  ).

    NG: REPLACE SKID CONTROL ECU (See  REMOVAL   ) 

    OK: GO TO NEXT STEP 

  4. READ VALUE OF INTELLIGENT TESTER (NO. 1 CONSOLE SWITCH) 
    1. Connect the intelligent tester or Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Select the DATA LIST mode on the intelligent tester or Techstream.
      1. Intelligent tester

        Center console switch: 

        CENTER CONSOLE SWITCH

        Tester Display Measurement Item/ Range Normal Condition Diagnostic Note
        TRAC/VSC OFF SW VSC OFF switch / ON or OFF ON: VSC OFF switch OFF
        OFF: VSC OFF switch ON        		 -
      2. Techstream

        Center console switch: 

        CENTER CONSOLE SWITCH

        Tester Display Measurement Item/ Range Normal Condition Diagnostic Note
        TRC (TRAC)/VSC OFF Switch VSC OFF switch / ON or OFF ON: VSC OFF switch OFF
        OFF: VSC OFF switch ON        		 -
    4. Check that "ON" and "OFF" of the VSC OFF switch turns on or off on the intelligent tester or Techstream.

      OK: The VSC OFF switch is operated, and the display changes as shown above. 

      HINT:

      The procedure above is performed to confirm the condition of the TR (A)C / VSC switch.

    NG: REPLACE NO. 1 CONSOLE SWITCH 

    OK: GO TO NEXT STEP 

  5. READ VALUE OF INTELLIGENT TESTER (SLIP INDICATOR LIGHT) 
    1. Connect the intelligent tester or Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Select the DATA LIST mode on the intelligent tester or Techstream.
      1. Intelligent tester

        Skid control ECU: 

        SKID CONTROL ECU

        Tester Display Measurement Item/ Range Normal Condition Diagnostic Note
        TRAC/VSC OFF SW VSC OFF switch / ON or OFF ON: VSC OFF switch OFF
        OFF: VSC OFF switch ON        		 -
      2. Techstream

        Skid control ECU: 

        SKID CONTROL ECU

        Tester Display Measurement Item/ Range Normal Condition Diagnostic Note
        TRC (TRAC)/VSC OFF SW VSC OFF switch / ON or OFF ON: VSC OFF switch OFF
        OFF: VSC OFF switch ON        		 -
    4. Check that the VSC OFF switch turns on or off on the intelligent tester or Techstream.

      OK: VSC OFF switch is operated, and the display changes as shown above. 

    NG: REPLACE SKID CONTROL ECU (See  REMOVAL   ) 

    OK: CHECK INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS   ) 

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