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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Park Assist / Monitoring >> Intuitive Parking Assist System >> DTC C1AEC Front Sensor Communication Malfunction >> Inspection Procedure

Inspection Procedure

  1. SYSTEM CHECK 
    1. Check if the vehicle is equipped with the advanced parking guidance system.

      Result 

      RESULT CHART

      Result Proceed to
      w/o Advanced parking guidance system A
      w/ Advanced parking guidance system B

    B: Go to step   23 

    A: GO TO NEXT STEP 

  2. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      C1AEC is output A
      No DTC is output B

    B: END 

    A: GO TO NEXT STEP 

  3. CHECK CLEARANCE WARNING ECU 
      Fig 1: Identifying Terminals Of L19 ECU Connector
      G04951844Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Reconnect the L19 ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      CLEARANCE WARNING ECU RESISTANCE

      Tester Connection Condition Specified Condition
      L19-19(E1)-Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      CLEARANCE WARNING ECU VOLTAGE

      Tester Connection Switch Condition Specified Condition
      L19-21 (BOF)-Body ground Engine switch on (IG) 7.2 to 8.8 V

    NG: REPLACE CLEARANCE WARNING ECU (See  REMOVAL   ) 

    OK: GO TO NEXT STEP 

  4. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - FRONT LEFT SIDE SENSOR) 
      Fig 2: Identifying Terminals Of L19 And D1 ECU Connector
      G04951845Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L19 ECU connector.
    2. Disconnect the D1 sensor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      CLEARANCE WARNING ECU - FRONT LEFT SIDE SENSOR

      Tester Connection Condition Specified Condition
      L19-21 (BOF)-D1-1 (BI) Always Below 1 Ω
      L19-9(SOF)-D1-3(SI) Always Below 1 Ω
      L19-19(E1)-D1-5(EI) Always Below 1 Ω
      L19-21 (BOF) - Body ground Always 10 kΩ or higher
      L19-9 (SOF) -Body ground Always 10 kΩ or higher
      L19-19(E1)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  5. CHECK HARNESS AND CONNECTOR (FRONT LEFT SIDE SENSOR - FRONT LEFT CORNER SENSOR) 
      Fig 3: Identifying Terminals Of D1 And D2 Sensor Connectors
      G04951846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D1 and D2 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT LEFT SIDE SENSOR - FRONT LEFT CORNER SENSOR

      Tester Connection Condition Specified Condition
      D1-2 (BO) - D2-1 (BI) Always Below 1 Ω
      D1-4(SO)-D2-3(SI) Always Below 1 Ω
      D1-6(EO)-D2-5(EI) Always Below 1 Ω
      D1-2(BO)-Body ground Always 10 kΩ or higher
      D1-4(SO)-Body ground Always 10 kΩ or higher
      D1-6(EO)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  6. CHECK HARNESS AND CONNECTOR (FRONT LEFT CORNER SENSOR - FRONT LEFT CENTER SENSOR) 
    Fig 4: Identifying Terminals Of D2 And D3 Sensor Connectors
    G04951847Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D2 and D3 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT LEFT CORNER SENSOR - FRONT LEFT CENTER SENSOR

      Tester Connection Condition Specified Condition
      D2-2 (BO) - D3-1 (BI) Always Below 1 Ω
      D2-4 (SO) - D3-3 (SI) Always Below 1 Ω
      D2-6 (EO) - D3-5 (El) Always Below 1 Ω
      02-2 (BO) - Body ground Always 10 kΩ or higher
      D2-4 (SO) - Body ground Always 10 kΩ or higher
      D2-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  7. CHECK HARNESS AND CONNECTOR (FRONT LEFT CENTER SENSOR - FRONT RIGHT CENTER SENSOR) 
      Fig 5: Identifying Terminals Of D3 And D4 Sensor Connectors
      G04951848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D3 and D4 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT LEFT CENTER SENSOR - FRONT RIGHT CENTER SENSOR

      Tester Connection Condition Specified Condition
      D3-2 (BO) - D4-1 (BI) Always Below 1 Ω
      03-4 (SO) - D4-3 (SI) Always Below 1 Ω
      D3-6 (EO) - D4-5 (El) Always Below 1 Ω
      D3-2 (BO) - Body ground Always 10 kΩ or higher
      D3-4 (SO) - Body ground Always 10 kΩ or higher
      D3-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  8. CHECK HARNESS AND CONNECTOR (FRONT RIGHT CENTER SENSOR - FRONT RIGHT CORNER SENSOR) 
      Fig 6: Identifying Terminals Of D4 And D6 Sensor Connectors
      G04951849Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D4 and D6 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT RIGHT CENTER SENSOR - FRONT RIGHT CORNER SENSOR

      Tester Connection Condition Specified Condition
      D4-2 (BO) - D6-1 (BI) Always Below 1 Ω
      D4-4 (SO) - D6-3 (SI) Always Below 1 Ω
      D4-6 (EO) - D6-5 (El) Always Below 1 Ω
      D4-2 (BO) - Body ground Always 10 kΩ or higher
      D4-4 (SO) - Body ground Always 10 kΩ or higher
      D4-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  9. CHECK HARNESS AND CONNECTOR (FRONT RIGHT CORNER SENSOR - FRONT RIGHT SIDE SENSOR) 
      Fig 7: Identifying Terminals Of D6 And D5 Sensor Connectors
      G04951850Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D6 and D5 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT RIGHT CORNER SENSOR - FRONT RIGHT SIDE SENSOR

      Tester Connection Condition Specified Condition
      D6-2 (BO) - D5-1 (BI) Always Below 1 Ω
      D6-4 (SO) - D5-3 (SI) Always Below 1 Ω
      D6-6 (EO) - D5-5 (El) Always Below 1 Ω
      D6-2 (BO) - Body ground Always 10 kΩ or higher
      D6-4 (SO) - Body ground Always 10 kΩ or higher
      D6-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  10. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) C
      No DTC is output D

    B: Go to step   17 

    C: Go to step   21 

    D: END 

    A: GO TO NEXT STEP 

  11. REPLACE NO. 2 ULTRASONIC SENSOR (FRONT LEFT SIDE SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 8: Identifying No. 2 Ultrasonic Sensor
      G04951832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) C
      No DTC is output D

    B: Go to step   17 

    C: Go to step   21 

    D: END 

    A: GO TO NEXT STEP 

  13. REPLACE NO. 2 ULTRASONIC SENSOR (FRONT RIGHT SIDE SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 9: Identifying No. 2 Ultrasonic Sensor
      G04951832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) C
      No DTC is output D

    B: Go to step   17 

    C: Go to step   21 

    D: END 

    A: GO TO NEXT STEP 

  15. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT CORNER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 10: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) C
      No DTC is output D

    B: REPLACE CLEARANCE WARNING ECU (See  REMOVAL   ) 

    C: Go to step   21 

    D: END 

    A: GO TO NEXT STEP 

  17. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT CENTER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 11: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) B
      No DTC is output C

    B: Go to step   21 

    C: END 

    A: GO TO NEXT STEP 

  19. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT RIGHT CENTER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 12: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) B
      No DTC is output C

    B: REPLACE CLEARANCE WARNING ECU (See  REMOVAL   ) 

    C: END 

    A: GO TO NEXT STEP 

  21. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT RIGHT CORNER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 13: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) A
      No DTC is output B

    B: END 

    A: REPLACE CLEARANCE WARNING ECU (See  REMOVAL   ) 

  23. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC and C1AEE are output A
      DTC C1AEC is output B
      No DTCs are output C

    B: GO TO  DTC C1AEE  

    C: END 

    A: GO TO NEXT STEP 

  24. CHECK PARKING ASSIST ECU 
      Fig 14: Identifying Terminals Of L19 ECU Connector
      G04951857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Reconnect the L19 ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      PARKING ASSIST ECU RESISTANCE

      Tester Connection Condition Specified Condition
      L91-32(CSG1)-Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      PARKING ASSIST ECU VOLTAGE

      Tester Connection Switch Condition Specified Condition
      L91-31 (CSBI)-Body ground Engine switch on (IG) 7.2 to 8.8 V

    NG: REPLACE PARKING ASSIST ECU (See  REMOVAL   ) 

    OK: GO TO NEXT STEP 

  25. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT LEFT CORNER SENSOR) 
      Fig 15: Identifying Parking Assist ECU
      G04951858Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L91 ECU connector.
    2. Disconnect the D2 sensor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      PARKING ASSIST ECU - FRONT LEFT CORNER SENSOR

      Tester Connection Condition Specified Condition
      L91-31(CSB1)-D2-1 (BI) Always Below 1 Ω
      L91-33(LIN1)-D2-3(SI) Always Below 1 Ω
      L91-32(CSG1)-D2-5 (El) Always Below 1 Ω
      L91-31(CSBI)-Body ground Always 10 kΩ or higher
      L91-33(LIN1)-Body ground Always 10 kΩ or higher
      L91-32(CSG1)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  26. CHECK HARNESS AND CONNECTOR (FRONT LEFT CORNER SENSOR - FRONT LEFT CENTER SENSOR) 
    Fig 16: Identifying Terminals Of D2 And D3 Sensor Connectors
    G04951847Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D2 and D3 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT LEFT CORNER SENSOR - FRONT LEFT CENTER SENSOR

      Tester Connection Condition Specified Condition
      D2-2 (BO) - D3-1 (BI) Always Below 1 Ω
      D2-4 (SO) - D3-3 (SI) Always Below 1 Ω
      D2-6 (EO) - D3-5 (El) Always Below 1 Ω
      D2-2 (BO) - Body ground Always 10 kΩ or higher
      D2-4 (SO) - Body ground Always 10 kΩ or higher
      D2-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  27. CHECK HARNESS AND CONNECTOR (FRONT LEFT CENTER SENSOR - FRONT RIGHT CENTER SENSOR) 
      Fig 17: Identifying Terminals Of D3 And D4 Sensor Connectors
      G04951848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D3 and D4 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT LEFT CENTER SENSOR - FRONT RIGHT CENTER SENSOR

      Tester Connection Condition Specified Condition
      D3-2 (BO) - D4-1 (BI) Always Below 1 Ω
      D3-4 (SO) - D4-3 (SI) Always Below 1 Ω
      D3-6 (EO) - D4-5 (El) Always Below 1 Ω
      D3-2 (BO) - Body ground Always 10 kΩ or higher
      D3-4 (SO) - Body ground Always 10 kΩ or higher
      D3-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  28. CHECK HARNESS AND CONNECTOR (FRONT RIGHT CENTER SENSOR - FRONT RIGHT CORNER SENSOR) 
      Fig 18: Identifying Terminals Of D4 And D6 Sensor Connectors
      G04951849Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D4 and D6 sensor connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FRONT RIGHT CENTER SENSOR - FRONT RIGHT CORNER SENSOR

      Tester Connection Condition Specified Condition
      D4-2 (BO) - D6-1 (BI) Always Below 1 Ω
      D4-4 (SO) - D6-3 (SI) Always Below 1 Ω
      D4-6 (EO) - D6-5 (El) Always Below 1 Ω
      D4-2 (BO) - Body ground Always 10 kΩ or higher
      D4-4 (SO) - Body ground Always 10 kΩ or higher
      D4-6 (EO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  29. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      No DTC is output C

    B: Go to step   34 

    C: END 

    A: GO TO NEXT STEP 

  30. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT CORNER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 19: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      No DTC is output C

    B: Go to step   34 

    C: END 

    A: GO TO NEXT STEP 

  32. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT RIGHT CORNER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 20: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Left, Front Center and Front Right) A
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) B
      No DTC is output C

    B: REPLACE PARKING ASSIST ECU (See  REMOVAL   ) 

    C: END 

    A: GO TO NEXT STEP 

  34. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT CENTER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 21: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Center and Front Right) A
      No DTC is output B

    B: END 

    A: GO TO NEXT STEP 

  36. REPLACE NO. 1 ULTRASONIC SENSOR (FRONT RIGHT CENTER SENSOR) 
    1. Replace the ultrasonic sensor (see REMOVAL  ) with a normally functioning sensor.
      Fig 22: Identifying No. 1 Ultrasonic Sensor
      G04951833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. CHECK DTC OUTPUT 
    1. Delete the DTCs (see DTC CHECK / CLEAR  ).
    2. Recheck for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC C1AEC is output And, multi-information display indicates open circuit (Front Right) A
      No DTC is output B

    B: END 

    A: REPLACE PARKING ASSIST ECU (See  REMOVAL   ) 

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