Hyundai Tucson: Seat heater (Ventilation)
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Seat Electrical / Seat heater (Ventilation)
Components
- Seat cushion heater (Ventilation)
- Seat heater (Ventilation) unit
- Seat back heater (Ventilation)
Circuit Diagram
Inspection
Driver/Passenger
- Check for continuity and measure the resistance between terminals.
- Operate the seat heater after connecting the connector, and then check the thermostat by measuring the temperature of seat surface.
Second Line Seat
- Check for continuity and measure the resistance between terminals.
Cushion
Back
Cushion
Back
- Operate the seat heater after connecting the connector, and then check the thermostat by measuring the temperature of seat surface.
Diagnosis mode
- Enter the diagnostic mode referring to below description.
- In failure mode, press the ventilation seat button for 4 seconds and release it.
- Press the ventilation seat button for 2 seconds and release it.
- Lastly, press the ventilation seat button for 4 seconds and release it.
- When entering the failure mode, the LED of the ventilation seat button turns ON/OFF/blinks at each stage.
- After entering the diagnosis mode, you can check what failed by checking the blinking LED.
- The table below indicates the failure based on priority, upper item means higher priority.
- If more than one failure is detected, higher priority failure is displayed through the LED flashing pattern.
- Lower priority failure will be displays if higher priority failure is reset.
Heater Switch
Driver/Passenger
Second line seat heater
- If you press the seat heater button for more than five seconds, the LED for malfunctioning memory will blink four times and the recorded memory will be deleted.
- Pressing the IGN OFF button will end the diagnosis mode for the seat.
- You can check whether the heating seat system works properly after turning the IGN ON. If you want to check the error code, you can refer to the procedure of 2 above.
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual