Problem Symptoms Table [11/2023 - ]
NOTE:
If the seat heater system is operated when the auxiliary battery voltage is low, due to the electrical load limit control that gives voltage supply priority to the power steering system, the seat heater system may not operate. In this case, check the vehicle control history (RoB) of the power steering system and check that "Battery Voltage Drop: X208F" is not stored before proceeding with troubleshooting.
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.
FRONT SEAT HEATER
| Symptom | Suspected Area | Link |
|---|---|---|
| Seat heater for front right seat does not operate | Refer to the "Seat Heater for Front Right Seat does not Operate". | Refer to Seat Heater for Front Right Seat does not Operate [11/2023 - ] |
| Seat heater for front left seat does not operate | Refer to the "Seat Heater for Front Left Seat does not Operate". | Refer to Seat Heater for Front Left Seat does not Operate [11/2023 - ] |
| Front seat heater does not operate for driver side and front passenger side seat | Front seat heater switch (Air conditioning control assembly) | Refer to REMOVAL [10/2022 - ] |
| Air conditioning amplifier assembly | Refer to REMOVAL [11/2023 - ] | |
| Wire harness or connector | - |
REAR SEAT HEATER (W/ REAR SEAT HEATER)
| Symptom | Suspected Area | Link |
|---|---|---|
| Seat heater for rear right seat does not operate | Refer to the "Seat Heater for Rear Right Seat does not Operate". | Refer to Seat Heater for Rear Right Seat does not Operate [11/2023 - ] |
| Seat heater for rear left seat does not operate | Refer to the "Seat Heater for Rear Left Seat does not Operate". | Refer to Seat Heater for Rear Left Seat does not Operate [11/2023 - ] |
| Seat heater for rear left and rear right seat do not operate | Rear seat heater switch (No. 2 air conditioning control assembly) | Refer to REMOVAL [12/2019 - ] |
| Air conditioning amplifier assembly | Refer to REMOVAL [11/2023 - ] | |
| Wire harness or connector | - |