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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Both front seat heaters do not operate | S/HTR FR fuse | - |
| ECU-IG NO.2 fuse | - | |
| Harness or connector | - | |
| Front seat heater LH does not operate | Harness or connector | - |
| Seat heater switch LH | ||
| Front seat cushion heater assembly LH (for Manual Seat) | ||
| Front seat cushion heater assembly LH (for Power Seat) | ||
| Front seat cushion heater assembly LH (for Walk in Seat Type) | ||
| Front seatback heater assembly LH (for Manual Seat) | ||
| Front seatback heater assembly LH (for Power Seat) | ||
| Front seatback heater assembly LH (for Walk in Seat Type) | ||
| Seat heater control sub-assembly LH (for front side) | ||
| Front seat heater RH does not operate | Harness or connector | - |
| Seat heater switch RH | ||
| Front seat cushion heater assembly RH (for Manual Seat) | ||
| Front seat cushion heater assembly RH (for Power Seat) | ||
| Front seat cushion heater assembly RH (for Walk in Seat Type) | ||
| Front seatback heater assembly RH (for Manual Seat) | ||
| Front seatback heater assembly RH (for Power Seat) | ||
| Front seatback heater assembly RH (for Walk in Seat Type) | ||
| Seat heater control sub-assembly RH (for front side) | ||
| Both rear seat heaters do not operate (w/ rear seat heater system) | S/HTR RR relay | - |
| IG1 fuse | - | |
| S/HTR RR fuse | - | |
| ECU-IG NO.2 fuse | - | |
| Harness or connector | - | |
| Air conditioning control assembly | ||
| Rear seat heater LH does not operate (w/ rear seat heater system) | LIN communication system | |
| Harness or connector | - | |
| Rear seat cushion heater LH | ||
| Rear seatback heater LH | ||
| Seat heater control sub-assembly LH (for rear side) | ||
| Air conditioning control assembly | ||
| Rear seat heater RH does not operate (w/ rear seat heater system) | LIN communication system | |
| Harness or connector | - | |
| Rear seat cushion heater RH | ||
| Rear seatback heater RH | ||
| Seat heater control sub-assembly RH (for rear side) | ||
| Air conditioning control assembly |