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Home >> Toyota >> 2008 >> Sienna CE >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System >> Vehicle Stability Control System >> VSC Warning Light Remains ON >> Inspection Procedure

Inspection Procedure

NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION  ).
  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

      Result 

      RESULT CHART

      Result Proceed to
      CAN communication system DTC is not output A
      CAN communication system DTC is output B

    B: INSPECT CAN COMMUNICATION SYSTEM 

    A: Go to Next Step 

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

      Result 

      RESULT CHART

      Result Proceed to
      Multiplex communication system DTC is not output A
      Multiplex communication system DTC is output B

    B: INSPECT MULTIPLEX COMMUNICATION SYSTEM 

    A: Go to Next Step 

  3. CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED 
    1. Check if the skid control ECU connector is securely connected.

      OK: The connector is securely connected. 

    NG: CONNECT CONNECTOR TO ECU CORRECTLY 

    OK: Go to Next Step 

  4. CHECK BATTERY 
    1. Check the battery voltage.

      Standard voltage: 11 to 14 V 

    NG: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY 

    OK: Go to Next Step 

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

      OK: The combination meter is normal. 

      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.

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: REPLACE BRAKE ACTUATOR ASSEMBLY