P0D16
Battery Charging System A High Voltage Interlock Circuit Performance
Generic OBD-II
Common symptoms
What you'll notice
- Inspect and repair any loose or damaged wiring in the charging system
- Check and replace the battery if necessary
Common causes
Most likely first
- Faulty battery or charging system
- Loose or corroded battery cables
- Malfunctioning voltage regulator
- Damaged wiring or connectors in the charging system
How to diagnose & fix
Work through it in order
- Battery not charging properly or at all
- Electrical system malfunctions
- Warning lights illuminate on the dashboard
Read & clear P0D16 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.