BYD Sealion 06 EV: HUD Not Working Diagnosis

The BYD Sealion 06 Wiring diagram provides the reference needed when fixing the Head-Up Display System faults. It contains the HUD system circuit diagram, which can help you trace the power, signal, controller, and communication circuits associated with the head-up display. Performing diagnosis without the wiring diagram can be difficult, and you risk doing incorrect tests or unnecessary component replacement.

This diagram helps answer these questions​

1. Why is the BYD Sealion 06 EV HUD not working?
2. How do you diagnose a BYD Sealion 06 EV head-up display fault?
3. How do you test the power supply to the BYD Sealion 06 EV HUD?
4. How do you diagnose the HUD signal circuit?
5. How do you check the HUD controller circuit?
6. How do you diagnose the communication circuit for the BYD Sealion 06 EV HUD?
7. What circuit diagram is needed to diagnose a BYD Sealion 06 EV HUD fault?

How to Access the Diagram​

To access the wiring diagram, click on the link below. Within the diagram, you will find the HUD 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.