TOYOTA PARKING ASSIST-SENSOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

Use the following procedure to troubleshoot the Toyota parking assist-sensor system.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS


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  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the power switch off.

      Standard Voltage
      11 to 14 V

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


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  4. CHECK INITIAL CHECK FUNCTION


    1. Refer to Operation Check Click here.

      Result
      Result Proceed to
      Symptoms do not appear A
      Symptoms appear B

      B

      Go to step 6
      A

  5. SYMPTOM SIMULATION


    NEXT

  6. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.

      Result
      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

      B

      Go to step 10
      A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Refer to Operation Check Click here.

    2. Refer to Terminals of ECU Click here.


      NEXT

  8. CIRCUIT INSPECTION


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  9. IDENTIFICATION OF PROBLEM


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  10. ADJUST, REPAIR OR REPLACE


    NEXT

  11. CONFIRMATION TEST


    NEXT
    END