E23
Polestar
EVSE-to-EV Handshake Failure
Charger shows E23; display may indicate ‘Vehicle Communication Error’; vehicle does not transition to charging state.
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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
Incorrect pilot duty cycle configuration, Faulty pilot modulation circuit, Vehicle not compatible with charger mode, Damaged pilot pin in connector
How to Fix / Troubleshooting
Safety first: Turn off power before inspecting the connector or opening the charger.
- Test with another vehicle: If possible, connect a different EV to determine whether the issue is vehicle‑specific.
- Inspect pilot pin: Examine the control pilot pin in the Polestar connector for bending, corrosion, or contamination. Clean gently with a dry brush.
- Check configuration: Using the installer menu or app, verify that the charger is configured for the correct region and standard (e.g., IEC Type 2) and that maximum current is set within the vehicle’s capability.
- Internal circuit check: If E23 occurs with multiple vehicles and the connector is good, the pilot modulation circuit on the main control board may be faulty and require replacement.
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Repair Difficulty
Hard
4/5
Required Part
Polestar EVSE Main Control Board
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