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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Front seat heater does not operate (for driver) | Refreshing seat switch (for LH) | |
| Front seat cushion heater (separate type front seat cushion cover (for LH)) | ||
| Front seatback heater (separate type front seatback cover (for LH)) | ||
| Seat heater control sub-assembly LH | - | |
| Wire harness or connector | - | |
| Front seat heater does not operate (for front passenger) | Refreshing seat switch (for RH) | |
| Front seat cushion heater (separate type front seat cushion cover (for RH)) | ||
| Front seatback heater (separate type front seatback cover (for RH)) | ||
| Seat heater control sub-assembly RH | - | |
| Wire harness or connector | - | |
| Rear seat heater does not operate (for LH)* | Seat heater switch (cooler control switch assembly) | - |
| Rear seat cushion heater (for LH) (bench type rear seat cushion cover) | ||
| Rear seatback heater (for LH) (bench type rear seatback cover) | ||
| Seat heater control sub-assembly (for LH) | - | |
| Wire harness or connector | - | |
| Rear seat heater does not operate (for RH)* | Seat heater switch (cooler control switch assembly) | - |
| Rear seat cushion heater (for RH) (bench type rear seat cushion cover) | ||
| Rear seatback heater (for RH) (bench type rear seatback cover) | ||
| Seat heater control sub-assembly (for RH) | - | |
| Wire harness or connector | - |
*: w/ Rear Seat Heater