ELECTRONICALLY CONTROLLED BRAKE SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

*: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    1. Interview the customer and confirm the problem.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK DTC AND FREEZE FRAME DATA*


    1. Check and record DTCs and Freeze Frame Data.

      for DTC Check / Clear: Click here

      for Freeze Frame Data: Click here


      Chassis > ABS/VSC/TRC > Trouble Codes

    2. Clear the DTCs and Freeze Frame Data.

      for DTC Check / Clear: Click here

      for Freeze Frame Data: Click here


      Chassis > ABS/VSC/TRC > Clear DTCs

    3. Reconfirm the DTCs.


      1. Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.


        Chassis > ABS/VSC/TRC > Trouble Codes

        Tech Tips


        • When CAN communication system DTCs are output, repair the CAN communication system first.

          Click here

        • If DTCs U0123/62, U0124/95, U0126/63, and/or U0293/59 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit.

          Click here

        • If the GTS cannot communicate with the skid control ECU assembly, inspect the CAN communication system.

          Click here

        • If there is no response from the skid control ECU assembly, inspect the IG1 circuit of the skid control ECU assembly.

          Click here

      Result
      Result Proceed to
      DTCs are output. A
      DTCs are not output. (Problem symptom does not occur.) B
      DTCs are not output. (Problem symptom occurs.) C

    B

    SYMPTOM SIMULATION Click here

    C

    GO TO STEP 6 Click here

    A

  4. DIAGNOSTIC TROUBLE CODE CHART


    1. Proceed to Diagnostic Trouble Code Chart.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 7 Click here

  5. SYMPTOM SIMULATION


    1. Proceed to How to Proceed with Troubleshooting.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. PROBLEM SYMPTOMS TABLE


    1. Proceed to Problem Symptoms Table.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CIRCUIT INSPECTION*

    Result
    Proceed to
    NEXT

    NEXT

  8. IDENTIFICATION OF PROBLEM

    Result
    Proceed to
    NEXT

    NEXT

  9. REPAIR OR REPLACEMENT

    Result
    Proceed to
    NEXT

    NEXT

  10. RECONFIRM DTC*


    1. Clear the DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Clear DTCs

    2. Check if the same DTCs are output.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    A

  11. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END