BYD Sealion 06 EV: Passenger Seat Ventilation Not Working Diagnosis (2025 Onwards)

The OEM Wiring diagram is a must-have when you are troubleshooting the passenger seat ventilation that is not working on the BYD Sealion 6 EV. This diagram provides the electrical information needed to trace the passenger-seat ventilation system and its related circuits.

This diagram helps answer these questions​

1. Why is the passenger seat ventilation not working on the BYD Sealion 06 EV?
2. How do you diagnose a passenger seat ventilation fault?
3. How do you test the passenger seat ventilation fan?
4. How do you check the passenger seat ventilation controller?
5. How do you check the power supply to the passenger seat ventilation system?
6. How do you test the passenger seat ventilation control circuit?
7. What wiring should be checked when passenger seat ventilation fails?
8. Which circuit diagram is needed to diagnose the passenger seat ventilation system?

How to Access the Diagram​

To access the wiring diagram, simply click on the link below. Within the diagram, you will find the Passenger Seat Ventilation and Heating System circuit diagram. I have attached a screenshot below to help you quickly navigate to the section where the diagram is located. Once you find it, you can then print or save it.

Please note that the year in the document is not the YOM but the document release date, so it covers the entire model range. Also note that the document applies to all countries where the model is sold, including China, South Africa, Singapore, the UK, Australia, New Zealand, Thailand, Brazil, Canada, etc.