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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Front seat heater for LH does not operate | Wire harness or connector | - |
| Front seat cushion heater assembly LH | ||
| Front seatback heater assembly LH | ||
| Seat heater control sub-assembly LH | - | |
| Seat heater switch (LH Side) (Air conditioning control assembly) | - | |
| Front seat heater for RH does not operate | Wire harness or connector | - |
| Front seat cushion heater assembly RH | ||
| Front seatback heater assembly RH | ||
| Seat heater control sub-assembly RH | - | |
| Seat heater switch (RH Side) (Air conditioning control assembly) | - | |
| Front seat heaters do not operate for LH and RH | Wire harness or connector | - |
| LIN communication system*1 | ||
| LIN communication system*2 | ||
| Air conditioning amplifier assembly | - |
*1: for Automatic Air Conditioning System with Top-mounted Air Conditioner Pressure Sensor
*2: for Automatic Air Conditioning System with Side-mounted Air Conditioner Pressure Sensor