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Problem Symptoms Table

  1. SEAT VENTILATION/HEATING SYSTEM 

    HINT:

    Use the table below, with suspected areas listed in numerical order, to determine the cause of the problem. Inspect and repair or replace parts as necessary according to the steps on the following pages.

    SEAT HEATER SYSTEM - PROBLEM SYMPTOMS TABLE

    Symptom Suspected Area Refer To
    Seat heaters do not operate (Seat is not warmed up).
    1. SEAT HTR fuse
    2. IG1 relay
    3. Front seat cushion heater assy LH
    4. Front seat cushion heater assy RH
    5. Front seatback heater assy LH
    6. Front seatback heater assy RH
    7. Seat ventilator/heater switch (Heater control housing sub-assy)
    8. Wire harness or connector
    1. *
    2. *
    3. INSPECTION 
    4. INSPECTION 
    5. INSPECTION 
    6. INSPECTION 
    7. DTC 63: SEAT HEATER TEMPERATURE SENSOR CIRCUIT (DRIVER SIDE)

      DTC 64: SEAT HEATER TEMPERATURE SENSOR CIRCUIT (PASSENGER SIDE)

    8. *
    Temperature of seat heater cannot be adjusted.
    1. Seat ventilator/heater switch (Heater control housing sub-assy)
    2. Wire harness or connector
    1. DTC 63: SEAT HEATER TEMPERATURE SENSOR CIRCUIT (DRIVER SIDE)

      DTC 64: SEAT HEATER TEMPERATURE SENSOR CIRCUIT (PASSENGER SIDE)

    2. *
    Seat ventilators do not operate.
    1. SEAT HTR fuse
    2. IG1 relay
    3. Seat ventilator circuit
    4. Seat ventilator/heater switch (Heater control housing sub-assy)
    5. Seat ventilator
    1. *
    2. *
    3. ON-VEHICLE INSPECTION 
    4. SEAT BLOWER CONTROL CIRCUIT
    5. *
    Intensity of seat ventilator cannot be adjusted.
    1. Seat ventilator/heater switch (Heater control housing sub-assy)
    2. Wire harness or connector
    1. SEAT BLOWER CONTROL CIRCUIT
    2. *
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