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Home >> Lexus >> 2017 >> NX 200t Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Warning Systems >> Intuitive Parking Assist System (W/O Intelligent Clearance Sonar System) - Diagnostics - Introduction >> INTUITIVE PARKING ASSIST SYSTEM (w/o Intelligent Clearance Sonar System) >> How To Proceed With Troubleshooting [09/2017 - 07/2020] >> Procedure
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How To Proceed With Troubleshooting [09/2017 - 07/2020]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. INSPECT BATTERY VOLTAGE 
    1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

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

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      Refer to DIAGNOSIS SYSTEM [09/2017 - 05/2018] , or refer to DIAGNOSIS SYSTEM [05/2018 - 05/2019] , or refer to DIAGNOSIS SYSTEM [05/2019 - 10/2019] , or refer to DIAGNOSIS SYSTEM [10/2019 - 07/2020]

      Result

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

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2017 - 05/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - ] 

    Result: 

    See step  5

  5. PROBLEM SYMPTOM CONFIRMATION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  6

  6. CHECK DTC* 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [09/2017 - 07/2020] 

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes 

      Result

      Result Proceed to
      DTCs are output A
      DTCs are not output (Problem symptom does not occur) B
      DTCs are not output (Problem symptom occurs) C

    Result: 

    See step  8

    Result: 

    See step  9

    Result: 

    See step  7

  7. DIAGNOSTIC TROUBLE CODE CHART (INTUITIVE PARKING ASSIST SYSTEM) 
    1. Refer to Diagnostic Trouble Code Chart.

      Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2017 - 05/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [05/2019 - 07/2020] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  11

  8. SYMPTOM SIMULATION 
    1. Refer to Symptom Simulation.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2017 - 05/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table.

      Refer to PROBLEM SYMPTOMS TABLE [09/2017 - 05/2018] , or refer to PROBLEM SYMPTOMS TABLE [05/2018 - 07/2020] 

      Result

      Result Proceed to
      Fault is not listed in Problem Symptoms Table A
      Fault is listed in Problem Symptoms Table B

    Result: 

    See step  11

    Result: 

    See step  10

  10. OVERALL ANALYSIS AND TROUBLESHOOTING 
    1. Operation Check

      Refer to OPERATION CHECK [09/2017 - 05/2018] , or refer to OPERATION CHECK [05/2018 - 07/2020] 

    2. Terminals of ECU

      Refer to TERMINALS OF ECU [09/2017 - 05/2018] , or refer to TERMINALS OF ECU [05/2018 - 07/2020] 

    3. Data List / Active Test

      Refer to DATA LIST / ACTIVE TEST [09/2017 - 05/2018] , or refer to DATA LIST / ACTIVE TEST [05/2018 - 07/2020] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  11

  11. CIRCUIT INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  12

  12. IDENTIFICATION OF PROBLEM 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

  13. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  14

  14. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END