SIMPLE INTELLIGENT PARKING ASSIST SYSTEM

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tip:

  • 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 BATTERY VOLTAGE

    1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

      Tip:

      If the voltage is below 11 V, recharge or replace the 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 CANCELED, 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 SYSTEMClick 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 OPERATIONClick 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 engine idles 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.

      Battery voltage (The simple intelligent parking assist system returns to normal when the 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.

      Battery voltage (The simple intelligent parking assist system returns to normal when the battery voltage is 10 V or more.)

      The IPA main switch assembly was pressed without the engine started.

      Ignition 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

      Tip:

      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

    CHECK TOYOTA PARKING ASSIST-SENSOR SYSTEMClick here

  8. CHECK OPERATION

    1. Turn the ignition switch off.

    2. Start the engine again.

    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 Hatchback LHD, Wagon LHD:Click here

    for Hatchback RHD, Wagon RHD:Click here

    for Sedan:Click here

    C

    CHECK TOYOTA PARKING ASSIST-SENSOR SYSTEMClick here

  9. CHECK TOYOTA PARKING ASSIST-SENSOR SYSTEM

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

      except Sedan:Click here

      for Sedan with Simple Intelligent Parking Assist System: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

    except Sedan:Click here

    for Sedan with Simple Intelligent Parking Assist System: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.

      w/ Central Gateway ECU:Click hereClick here

      w/o Central Gateway ECU:Click hereClick hereClick 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

    w/ Central Gateway ECU:Click here

    w/o Central Gateway ECU: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

    ADJUST, REPAIR OR REPLACEClick 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
      Tip:

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

      Click hereClick hereClick here

    B

    ADJUST, REPAIR OR REPLACEClick 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