TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/ Multi-display) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


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

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the engine 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.


      NEXT

  4. CHECK CAN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD with Entry and Start System) B
      CAN DTC is output (for LHD without Entry and Start System) C
      CAN DTC is output (for RHD with Entry and Start System) D
      CAN DTC is output (for RHD without Entry and Start System) E

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      C

      GO TO CAN COMMUNICATION SYSTEM Click here

      D

      GO TO CAN COMMUNICATION SYSTEM Click here

      E

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. CHECK LIN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the LIN communication system is functioning normally.

      Result
      Result Proceed to
      LIN communication system DTC is not output A
      LIN communication system DTC is output B

      B

      GO TO LIN COMMUNICATION SYSTEM Click here

      A

  6. CHECK METER/GAUGE SYSTEM*


    1. Use the GTS to check if the meter/gauge system is functioning normally.

      Result
      Result Proceed to
      Meter/gauge system DTC B2660 is not output A
      Meter/gauge system DTC B2660 is output B

      B

      GO TO METER/GAUGE SYSTEM Click here

      A

  7. PROBLEM SYMPTOM CONFIRMATION


    NEXT

  8. CHECK DTC*


    1. Check for DTCs 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

      Go to step 10
      C

      Go to step 11
      A

  9. DIAGNOSTIC TROUBLE CODE CHART


    1. Refer to Diagnostic Trouble Code Chart Click here.


      NEXT
      Go to step 13

  10. SYMPTOM SIMULATION


    1. Refer to Symptom Simulation Click here.


      NEXT

  11. 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

      ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
      A

  12. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check Click here

    2. Terminals of ECU Click here

    3. Data List / Active Test Click here


      NEXT

  13. CIRCUIT INSPECTION*


    1. Adjust, repair or replace as necessary.


      NEXT

  14. IDENTIFICATION OF PROBLEM


    NEXT

  15. REPAIR OR REPLACE


    NEXT

  16. CONFIRMATION TEST*


    NEXT
    END