SEAT HEATER SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips


  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Seat Heater System
Symptom Suspected Area See page
Front seat heater does not operate (for driver) Seat heater switch (for LH)

Click here

Front seat cushion heater (separate type front seat cushion cover)

Click here

Front seatback heater (separate type front seatback cover)

Click here

Seat heater control sub-assembly LH -
Wire harness or connector -
Front seat heater does not operate (for front passenger) Seat heater switch (for RH)

Click here

Front seat cushion heater (separate type front seat cushion cover)

Click here

Front seatback heater (separate type front seatback cover)

Click here

Seat heater control sub-assembly RH -
Wire harness or connector -
Rear seat heater does not operate (for LH)*1 Seat heater switch (cooler control switch assembly)*2 -
Seat heater switch (for LH)*3 -
Rear seat cushion heater LH (bench type rear seat cushion cover)*2

Click here

Rear seat cushion heater LH (bench type rear seat cushion cover)*3

Click here

Rear seatback heater LH (separate type rear seatback cover)*2

Click here

Rear seatback heater LH (separate type rear seatback cover)*3

Click here

Wire harness or connector -
Rear seat heater does not operate (for RH)*1 Seat heater switch (cooler control switch assembly)*2 -
Seat heater switch (for RH)*3 -
Rear seat cushion heater RH (bench type rear seat cushion cover)*2

Click here

Rear seat cushion heater RH (bench type rear seat cushion cover)*3

Click here

Rear seatback heater RH (separate type rear seatback cover)*2

Click here

Rear seatback heater RH (separate type rear seatback cover)*3

Click here

Wire harness or connector -