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
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  2. CUSTOMER PROBLEM ANALYSIS


    1. Interview the customer and confirm the problem Click here.

      Result
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  3. CHECK DTC AND FREEZE FRAME DATA*


    1. Check and record DTCs and Freeze Frame Data.

    2. Clear the DTCs and Freeze Frame Data (See page for DTC Check/Clear, and Click here for Freeze Frame Data).

    3. Reconfirm the DTCs.


      1. Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data (See page for DTC Check/Clear, and Click here for Freeze Frame Data).

        Tech Tips


        • When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system before repairing each corresponding sensor (See page for with Central Gateway ECU or Click here for without Central Gateway ECU).

        • If any of DTCs U0123/62, U0124/95, U0126/63, and 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, inspect the CAN communication system (See page for with Central Gateway ECU or Click here for without Central Gateway ECU).

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

        Result
        Result Proceed to
        DTC is output A
        DTC is not output (Problem symptom does not occur) B
        DTC is not output (Problem symptom occurs) C

    B
    C
    A
  4. DIAGNOSTIC TROUBLE CODE CHART


    1. Proceed to Diagnostic Trouble Code Chart Click here.

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  5. SYMPTOM SIMULATION


    1. Proceed to How to Proceed with Troubleshooting Click here.

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  6. PROBLEM SYMPTOMS TABLE


    1. Proceed to Problem Symptoms Table Click here.

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  7. CIRCUIT INSPECTION*

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  8. IDENTIFICATION OF PROBLEM

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  9. REPAIR OR REPLACEMENT

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  10. CONFIRMATION TEST*

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