ANTI-LOCK BRAKE SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • The anti-lock brake system troubleshooting procedures are based on the premise that the CAN communication system is normally functioning. Check the CAN communication system first before troubleshooting the anti-lock brake system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    1. Interview the customer and confirm the trouble.


      NEXT

  3. CHECK DTC AND FREEZE FRAME DATA*


    1. Check and record DTC and Freeze Frame Data.

    2. Clear the DTC and Freeze Frame Data Click here for DTC Check/Clear, or Click here for Freeze Frame Data).

    3. Reconfirm the DTC.


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

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

      B

      Go to step 5
      C

      Go to step 6
      A

  4. DIAGNOSTIC TROUBLE CODE CHART


    1. Proceed to Diagnostic Trouble Code Chart Click here.


      NEXT
      Go to step 7

  5. SYMPTOM SIMULATION


    1. Proceed to Check for Intermittent Problems Click here.


      NEXT

  6. PROBLEM SYMPTOMS TABLE


    1. Proceed to Problem Symptoms Table Click here.


      NEXT

  7. CIRCUIT INSPECTION*


    NEXT

  8. IDENTIFICATION OF PROBLEM


    NEXT

  9. REPAIR OR REPLACEMENT


    NEXT

  10. RECONFIRM DTC*


    1. Clear the DTCs.

    2. Check if the same DTCs are output.

      Result
      Result Proceed to
      DTC are not output. A
      DTCs are output. B

      B

      REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
      A

  11. CONFIRMATION TEST*


    NEXT
    END