BYD Sealion 06 EV: Rear Windshield Heating Fault Diagnosis

When diagnosing the rear windshield heating fault on the BYD Sealion 06 EV, it's crucial to always refer to the OEM Wiring Diagram. This diagram helps you trace the rear windshield heating circuit and identify the relevant heater grid and power connections. Without the circuit diagrams, it can be difficult to correctly identify the rear windshield power circuits.

This diagram helps answer these questions​

1. Why is the BYD Sealion 06 EV rear windshield heating not working?
2. How to diagnose a BYD Sealion 06 EV rear windshield heating fault?
3. How to test the rear windshield heater circuit?
4. How to check the power supply to the BYD Sealion 06 EV rear windshield heating system?
5. How to diagnose a rear windshield heater grid fault?
6. How to identify the wiring for the BYD Sealion 06 EV rear windshield heating system?
7. Which circuit diagram is needed to diagnose a BYD Sealion 06 EV rear windshield heating fault?

How to Access the Diagram​

To access the wiring diagram, simply click on the link below. Within the diagram, you will find the windshield heating 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.