| Symptom | Suspected Area | See page |
| Both front seat heaters do not operate (w/o climate control system) | LH-IG fuse | - |
| SEAT-HTR fuse | - |
| Front seat heater switch |
|
| Harness or connector | - |
| Both front seat heaters do not operate (w/ climate control system) | LH-IG fuse | - |
| SEAT-A/C FAN fuse | - |
| Front seat heater switch |
|
| Harness or connector | - |
| Front seat heater LH does not operate (w/o climate control system) | Front seat heater switch |
|
| Seat heater control sub-assembly LH (for front side) |
|
| Front seat cushion heater LH |
|
| Front seatback heater LH |
|
| Harness or connector | - |
| Front seat heater LH does not operate (w/ climate control system) | SEAT-A/C LH fuse | - |
| Front seat heater switch |
|
| Seat climate control ECU LH |
|
| Front seat cushion heater LH |
|
| Front seatback heater LH |
|
| Harness or connector | - |
| Front seat heater RH does not operate (w/o climate control system) | Front seat heater switch |
|
| Seat heater control sub-assembly RH (for front side) |
|
| Front seat cushion heater RH |
|
| Front seatback heater RH |
|
| Harness or connector | - |
| Front seat heater RH does not operate (w/ climate control system) | SEAT-A/C RH fuse | - |
| Front seat heater switch |
|
| Seat climate control ECU RH |
|
| Front seat cushion heater RH |
|
| Front seatback heater RH |
|
| Harness or connector | - |
| Indicator light (LH side) of front seat heater switch blinks (w/ climate control system) | Front seat cushion heater LH |
|
| Harness or connector | - |
| Seat climate control ECU LH |
|
| Indicator light (RH side) of front seat heater switch blinks (w/ climate control system) | Front seat cushion heater RH |
|
| Harness or connector | - |
| Seat climate control ECU RH |
|
| Both rear seat heaters do not operate (w/ rear seat heater system) | ECU-IG No. 2 fuse | - |
| RR S/HTR fuse | - |
| IG1 NO. 5 relay | - |
| Rear air conditioning control panel | - |
| Harness or connector | - |
| Rear seat heater LH does not operate (w/ rear seat heater system) | Seat heater control sub-assembly LH (for rear side) | - |
| Rear air conditioning control panel | - |
| Rear seat cushion heater LH (for 60/40 Split Seat Type 40 Side) |
|
| Rear seat cushion heater LH (for 60/40 Split Seat Type 60 Side) |
|
| Rear seatback heater LH (for 60/40 Split Seat Type 40 Side) |
|
| Rear seatback heater LH (for 60/40 Split Seat Type 60 Side) |
|
| Harness or connector | - |
| Rear seat heater RH does not operate (w/ rear seat heater system) | Seat heater control sub-assembly RH (for rear side) | - |
| Rear air conditioning control panel | - |
| Rear seat cushion heater RH (for 60/40 Split Seat Type 40 Side) |
|
| Rear seat cushion heater RH (for 60/40 Split Seat Type 60 Side) |
|
| Rear seatback heater RH (for 60/40 Split Seat Type 40 Side) |
|
| Rear seatback heater RH (for 60/40 Split Seat Type 60 Side) |
|
| Harness or connector | - |