Problem Symptoms Table [12/2013 - 11/2016]
NOTE:
If the battery voltage is low, the seat heater system may not operate. In this case, check the Data List item "Battery Control Count (Body ECU)".
HINT:
- 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 | Link |
|---|---|---|
| Front seat heater does not operate (for LH) | Seat heater switch (LH side)*1 | Refer to INSPECTION [12/2013 - ] |
| Seat heater switch*2 | Refer to INSPECTION [12/2013 - ] | |
| Check the thermostat | Refer to OPERATION CHECK [12/2013 - 11/2016] | |
| Front seat cushion heater assembly LH | Refer to INSPECTION [12/2013 - ] | |
| Front seatback heater assembly LH | Refer to INSPECTION [12/2013 - ] | |
| Seat heater control sub-assembly LH | - | |
| Wire harness or connector | - | |
| Front seat heater does not operate (for RH) | Seat heater switch (RH side)*1 | Refer to INSPECTION [12/2013 - ] |
| Seat heater switch*2 | Refer to INSPECTION [12/2013 - ] | |
| Check the thermostat | Refer to OPERATION CHECK [12/2013 - 11/2016] | |
| Front seat cushion heater assembly RH | Refer to INSPECTION [12/2013 - ] | |
| Front seatback heater assembly RH | Refer to INSPECTION [12/2013 - ] | |
| Seat heater control sub-assembly RH | - | |
| Wire harness or connector | - | |
| Rear seat heater does not operate (for LH)*3 | Check the thermostat | Refer to OPERATION CHECK [12/2013 - 11/2016] |
| Seat heater assembly (rear LH side seat cushion) | Refer to INSPECTION [12/2013 - ] | |
| Seat heater assembly (rear LH side seatback) | Refer to INSPECTION [12/2013 - ] | |
| Seat heater control sub-assembly (rear LH side seat) | - | |
| Seat heater switch (No. 2 air conditioning control assembly) | - | |
| Wire harness or connector | - | |
| Rear seat heater does not operate (for RH)*3 | Check the thermostat | Refer to OPERATION CHECK [12/2013 - 11/2016] |
| Seat heater assembly (rear RH side seat cushion) | Refer to INSPECTION [12/2013 - ] | |
| Seat heater assembly (rear RH side seatback) | Refer to INSPECTION [12/2013 - ] | |
| Seat heater control sub-assembly (rear RH side seat) | - | |
| Seat heater switch (No. 2 air conditioning control assembly) | - | |
| Wire harness or connector | - | |
| *1: w/o Climate Control Seat System *2: w/ Climate Control Seat System *3: w/ Rear Seat Heater |
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