BYD TANG DM 2019 Quick Reference Book page 35

Abnormal fault
1. If there are foreign matters in the charging port or terminal, it
should be cleared by the high-pressure air gun; if the foreign
matter cannot be cleared, need to change.
2. If the leaf spring of the charging port or bottom of the terminal is
blacked, need to change.
3. If the leaf spring and terminal are broken, need to change.
4. If the leaf spring of the charging port and bottom of the terminal
are yellowing, and the tail of charge cable is melanized and
deformed, need to change.
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