E15
Kia
Vehicle Communication / Handshake Failure
Kia home charger shows E15 and the vehicle reports a charging error; charging stops shortly after starting.
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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
Incompatible or corrupted communication protocol settings in Kia charger, Faulty control pilot modulation circuit, Damaged Type 2 connector pins affecting communication, Vehicle-side charging control fault
How to Fix / Troubleshooting
Safety first: Do not attempt to modify communication wiring inside the charger without proper training.
- 1. Try another charger: Connect your Kia EV to a public or different home charger. If it charges normally, the issue is likely with your Kia home charger.
- 2. Reboot both charger and vehicle: Turn off the charger at the breaker and power down the vehicle fully (lock and wait several minutes). Then restore power and reconnect.
- 3. Inspect connector pins: Check the Type 2 plug for bent, recessed, or contaminated pins. Clean gently with a dry brush.
- 4. Firmware update: Ensure the Kia charger firmware is up to date, as communication bugs are often resolved in updates.
- 5. Board-level diagnosis (technician): A technician can verify the pilot modulation and communication signals with an EVSE test tool. If the charger fails handshake tests, the main control board or connector assembly may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Type 2 Connector Assembly
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