SEAT HEATER 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 seat heater system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • In 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, whether the problem occurred recently or has been occurring for a long time
    Where Whether the problem occurs at a specific location
    Under what conditions? Whether the doors were locked or unlocked, whether the power switch was on (IG), whether the hybrid control system has started
    How did it happen? Problem symptoms
    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT AUXILIARY BATTERY VOLTAGE


    1. Measure the auxiliary battery voltage.

      Standard voltage
      11 to 14 V (power switch off)

      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

    NEXT

  4. CHECK FOR DTC (AIR CONDITIONING SYSTEM)*


    1. Clear the DTCs.

      Click here


      Body Electrical > Air Conditioner > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Air Conditioner > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO AIR CONDITIONING SYSTEM Click here

    A

  5. CHECK FOR DTC (SEAT HEATER SYSTEM)*


    1. Clear the DTCs.

      Click here


      Body Electrical > Air Conditioner > Clear DTCs

    2. Recheck for DTCs.

      Click here


      Body Electrical > Air Conditioner > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  6. 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

    B

    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

    A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check

      Click here

    2. Terminals of ECU

      Click here

    3. Data List / Active Test

      Click here

    4. Inspection

      Result
      Proceed to
      NEXT

    NEXT

  8. REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  9. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END