DTC B1421-4B: Left Front Cooled/Heated Seat Thermal Electric Device #2 - Over temperature: Action
- Check the airflow to the front left seat cushion climate assembly thermal electric device is not blocked
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. For further symptom driven diagnostic flow. Refer to DIAGNOSIS AND TESTING - Vehicles With: Climate Controlled Seats