P0E70
Battery Charging System Precharge Contactor Control Circuit High
Generic OBD-II
Common symptoms
What you'll notice
- Check and test the battery connections for any loose or corroded terminals
- Inspect the charging system for any faulty components
- Verify and replace any damaged or worn
- out wiring in the precharge contactor circuit
- Clean or replace the precharge contactor itself if it is malfunctioning or sticking.
Common causes
Most likely first
- Faulty battery or weak battery charge
- Malfunctioning alternator or voltage regulator
- Loose or corroded battery connections
- Defective precharge contactor
- Damaged wiring or electrical connectors in the battery charging system
How to diagnose & fix
Work through it in order
- Battery not charging properly
- Electrical system malfunctions
- Warning lamp illuminated
Read & clear P0E70 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.