SIMPLE INTELLIGENT PARKING ASSIST SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use the following procedure to troubleshoot the simple intelligent parking assist system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    • When troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • The following 5 items are important points for problem analysis:

      What Vehicle model, system name
      When Date, time, occurrence frequency
      Where Road conditions
      Under what conditions? Driving conditions, weather conditions
      How did it happen? Problem symptoms
    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT AUXILIARY BATTERY VOLTAGE


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

      Standard Voltage
      11 to 14 V

      Tech Tips

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

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK WARNING MESSAGE ON MULTI-INFORMATION DISPLAY


    1. Check if a warning message was displayed on the multi-information display when the malfunction occurred.

      Result
      Result Proceed to
      "IPA NOT AVAILABLE" or "IPA CANCELED, TAKE OVER" was displayed on the multi-information display. A

      • Warning message other than "IPA NOT AVAILABLE" or "IPA CANCELLED, TAKE OVER" was displayed on the multi-information display.

      • Warning message was not displayed on the multi-information display.

      		 B

    B

    CHECK TOYOTA PARKING ASSIST-SENSOR SYSTEM Click here

    A

  5. CHECK DATA LIST (ABNORMALITY HISTORY)*


    1. Check the abnormality history in the Data List by using the GTS.

      Click here

      Result
      Result Proceed to
      "Rec" is displayed for any of the items. A
      "Unrec" is displayed for all items. B

    B

    CHECK OPERATION Click here

    A

  6. CHECK DETAIL*


    1. Check the Data List for the following abnormality history items, and explain to the customer that the vehicle is not malfunctioning and ask them to use the vehicle as is.

      Tester Display Suspected Area Item to be Checked
      Invalid EPS Record during IPA SW-ON The power steering system temporarily overheated.

      • The simple intelligent parking assist system returns to normal when the steering wheel is not operated and the power switch on (READY) for 30 minutes with following conditions:


        • The air conditioning system is on (MAX COLD and FACE mode)


        • Close the front register and side register ducts

      • Tire pressure and tire wear
      Power source voltage supplied to the power steering system dropped. Auxiliary battery voltage (The simple intelligent parking assist system returns to normal when the auxiliary battery voltage is 12 V or more.)
      History of IPA Cancel due to Lo Power Power source voltage supplied to the simple intelligent parking assist system dropped. Auxiliary battery voltage (The simple intelligent parking assist system returns to normal when the auxiliary battery voltage is 10 V or more.)
      The IPA main switch assembly was pressed without the power switch on (READY). Power switch condition when the IPA main switch assembly is pressed.
      History of IPA Cancel due to Large Current Malfunction is due to tire conditions or usage conditions, such as on rough roads or steep hills, while the simple intelligent parking assist system was operating.

      • Tire pressure and tire wear

      • Usage conditions
      History of IPA Cancel due to Deviation in Steering Angle
      History of IPA Cancel due to Going Off Course

    2. Clear the DTCs.

      Click here

      Tech Tips

      Clearing the DTCs will reset the abnormality history.

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK OPERATION


    1. Check that the simple intelligent parking assist system operates normally.

      Click here

      OK
      Simple intelligent parking assist system operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    GO TO STEP 9 Click here

  8. CHECK OPERATION


    1. Turn the power switch off.

    2. Turn the power switch on (READY).

    3. Check that the simple intelligent parking assist system operates normally.

      Click here

      OK
      Simple intelligent parking assist system operates normally.
      Result
      Result Proceed to
      Simple intelligent parking assist system operates normally. A
      "IPA NOT AVAILABLE" or "IPA CANCELED, TAKE OVER" is displayed on the multi-information display and the operation is canceled. B
      Malfunctions other than above. C

    A

    END

    B

    REPLACE CLEARANCE WARNING ECU ASSEMBLY for LHD: Click here
    REPLACE CLEARANCE WARNING ECU ASSEMBLY for RHD: Click here

    C

  9. CHECK TOYOTA PARKING ASSIST-SENSOR SYSTEM


    1. Check that the Toyota parking assist-sensor system operates normally.

      for Hatchback: Click here

      except Hatchback: Click here

      Result
      Result Proceed to
      Toyota parking assist-sensor system operates normally. A
      Toyota parking assist-sensor system does not operate normally. B

    B

    GO TO TOYOTA PARKING ASSIST-SENSOR SYSTEM for Hatchback: Click here
    GO TO TOYOTA PARKING ASSIST-SENSOR SYSTEM except Hatchback: Click here

    A

  10. CHECK POWER STEERING SYSTEM


    1. Check that the power steering system operates normally.

      Click here

      Result
      Result Proceed to
      Power steering system operates normally. A
      Power steering system does not operate normally. B

    B

    GO TO POWER STEERING SYSTEM Click here

    A

  11. CHECK CAN COMMUNICATION SYSTEM*


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

      Click here

      Result
      Result Proceed to
      CAN communication system DTCs are not output. A
      CAN communication system DTCs are output. B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  12. CHECK DTC OUTPUT*


    1. Clear the DTCs.

      Click here


      Body Electrical > Clearance Sonar / Simple-IPA. > Clear DTCs

    2. Recheck for DTCs.

      Click here


      Body Electrical > Clearance Sonar / Simple-IPA. > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    B

    GO TO STEP 15 Click here

    A

  13. 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

      Tech Tips

      If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.

      Click here


    B

    GO TO STEP 15 Click here

    A

  14. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU

      Click here

    2. Diagnosis System

      Click here

    3. Data List / Active Test

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  15. ADJUST, REPAIR OR REPLACE

    Note

    Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization may be needed. Refer to Initialization.

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  16. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END