Problem Symptoms Table [12/2019 - 11/2023]
NOTE:
- If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the seat heater system may not operate.
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 driver side and front passenger side seat | Air conditioning amplifier assembly | - |
| LIN Communication Line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 11/2023] | |
| Front seat heater switch (Air conditioning control assembly) | ||
| Wire harness or connector | - | |
| 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 [12/2019 - 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 [12/2019 - 11/2023] |
| Seat heater for rear left and rear right seat do not operate | Air conditioning amplifier assembly | - |
| Rear seat heater switch (Air conditioning control assembly No. 2) | - | |
| LIN Communication Line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 11/2023] | |
| 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 [12/2019 - 10/2022] , or refer to Seat Heater for Rear Right Seat does not Operate [10/2022 - 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 [12/2019 - 10/2022] , or refer to Seat Heater for Rear Left Seat does not Operate [10/2022 - 11/2023] |