This is general guidance based on the ChargeX MREC standard. Actual charger behavior varies by manufacturer and firmware version. Always follow on-screen instructions and contact the charging network if you are unsure.
Critical
Your vehicle's built-in AC charger has a fault. This component converts AC power from the charger to DC power for your battery. DC fast charging may still work because it bypasses the onboard charger.
What to do
- Try DC fast charging to see if the issue is specific to AC charging
- Restart your vehicle and try AC charging again
- Check for a vehicle software update
- Contact your vehicle manufacturer. The onboard charger may need service or replacement
Who's responsible?
- This may be a vehicle issue
Technical details
- Error code
- OnboardChargerFault
- Category
- Vehicle
- Classification
- maintenance
- Source
- ChargeX MREC Standard (2023)
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