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How To Proceed With Troubleshooting [11/2023 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 
    1. Interview the customer to confirm the problem.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. PRE-CHECK 
    1. Measure the auxiliary battery voltage with the ignition switch off.

      Standard Voltage

      11 to 14 V

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

    2. Check the fuses and relays.
    3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
    1. Using the GTS, check for CAN communication system DTCs.

      for HV Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

      for Gasoline Model: Refer to DIAGNOSIS SYSTEM [11/2023 - ]

      Result

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

    Result: 

    GO TO CAN COMMUNICATION SYSTEM 

    for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

    for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

    Result: 

    See step  5

  5. CHECK FOR DTC* 
    1. Clear the DTCs.

      Body Electrical > Air Conditioner > Clear DTCs 

    2. Check for DTCs.

      Body Electrical > Air Conditioner > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      Air conditioning system DTCs are output B
      Seat heater system DTCs are output C

    Result: 

    GO TO AIR CONDITIONING SYSTEM 

    for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

    for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [11/2023 - ]  

    Result: 

    See step  6

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

      Refer to PROBLEM SYMPTOMS TABLE [11/2023 - ] 

      Result

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

    Result: 

    See step  8

    Result: 

    See step  7

  7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Operation Check

      Refer to OPERATION CHECK [12/2019 - ] 

    2. Terminals of ECU

      Refer to TERMINALS OF ECU [11/2023 - ] 

    3. Data List / Active Test

      Refer to DATA LIST / ACTIVE TEST [11/2023 - ] 

    4. Inspection

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  9

  9. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END