E27
Polestar
Vehicle-Side Lock Coordination Fault
Charger shows E27; display may indicate ‘Locking Error EV’; vehicle cannot lock to connector.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Timing mismatch between charger lock and vehicle lock, Faulty lock feedback signal from vehicle, Incorrect regional configuration, Control board firmware bug
How to Fix / Troubleshooting
Safety first: Do not force the connector. Turn off power if the connector cannot be removed normally.
- Test with another vehicle: If possible, connect a different EV to see if the issue is specific to one car.
- Check configuration: Ensure the Polestar charger is configured for the correct connector standard and region in the installer menu or app.
- Update firmware: Use the Polestar app or service portal to check for and apply any firmware updates that address locking coordination.
- Service support: If E27 persists across vehicles, contact Polestar support; a firmware patch or control board replacement may be required.
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Repair Difficulty
Medium
3/5
Required Part
Polestar EVSE Main Control Board
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