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. INSPECT BATTERY VOLTAGE


    1. Measure the voltage of the battery.

      Standard voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.


      NEXT

  4. CHECK DTC AND FREEZE FRAME DATA*


    1. Check and record the DTCs and Freeze Frame Data.

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

        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

      GO TO STEP 6
      C

      GO TO STEP 7
      A

  5. DIAGNOSTIC TROUBLE CODE CHART


    1. Proceed to Diagnostic Trouble Code Chart Click here.


      NEXT
      GO TO STEP 8

  6. SYMPTOM SIMULATION


    1. Proceed to Check for Intermittent Problems Click here.


      NEXT

  7. PROBLEM SYMPTOMS TABLE


    1. Proceed to Problem Symptoms Table Click here.


      NEXT

  8. CIRCUIT INSPECTION


    NEXT

  9. IDENTIFICATION OF PROBLEM


    NEXT

  10. REPAIR OR REPLACEMENT


    NEXT

  11. CONFIRMATION TEST*


    NEXT
    END