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Inspection Procedure

NOTE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration (See INITIALIZATION  ).
  1. INSPECT CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

      Result 

      RESULT CHART

      Condition Proceed To
      DTC is not output A
      DTC is output B

    B: REPAIR CAN COMMUNICATION SYSTEM 

    A: Go to next step 

  2. INSPECT MULTIPLEX COMMUNICATION SYSTEM 
    1. Check if the multiplex communication system DTC is output (See DTC CHECK / CLEAR ).

      Result 

      RESULT CHART

      Condition Proceed To
      DTC is not output A
      DTC is output B

    B: REPAIR MULTIPLEX COMMUNICATION SYSTEM 

    A: Go to next step 

  3. INSPECT BRAKE CONTROL WARNING LIGHT 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch on.
    3. Select the "ECB* Warning Lamp" in the Active Test and operate the brake control warning light by Techstream.

      ABS/VSC/TRAC: 

      ABS/VSC/TRAC ACTIVE TEST REFERENCE

      Tester Display Test Part Control Range Diagnostic Note
      ECB(1) Warning Lamp Brake control warning light Warning light ON / OFF Observe combination meter
      (1) Electronically Controlled Brake
    4. Check that "ON" and "OFF" of the brake control warning lights are indicated on the combination meter when using Techstream.

      OK: The brake control warning lights turn on or off in accordance with the operation using 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: Go to step 4 

    OK: REPLACE SKID CONTROL ECU 

  4. INSPECT COMBINATION METER ASSEMBLY 
    1. Check the combination meter assembly (See HOW TO PROCEED WITH TROUBLESHOOTING ).

      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 COMBINATION METER ASSEMBLY 

    OK: END