Volkswagen Control Pilot Signal Level Incorrect

Vehicle does not start charging; VW wallbox LEDs show normal ready state; no error code; vehicle displays ‘Charging station not ready’ or similar.

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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

Damaged control pilot conductor in tethered cable, Poor contact on CP pin in Type 2 plug, Faulty CP driver circuit on VW wallbox PCB, Contamination in vehicle inlet

How to Fix / Troubleshooting

Safety first: Turn off the charger breaker before closely inspecting the plug.

  • Unplug and replug: Disconnect the Type 2 plug from the vehicle, wait 10 seconds, and firmly reconnect until fully latched.
  • Inspect plug pin: Check the small CP pin in the Type 2 connector for bending, discoloration, or dirt. Clean gently with a dry cloth.
  • Test with another EV or cable: If possible, try another vehicle or cable to isolate whether the issue is with the VW wallbox or the car.
  • Reboot charger: Power cycle the VW wallbox at the breaker and retry.

If the problem persists across multiple vehicles and cables, the control pilot driver circuit on the VW wallbox control board may be defective and require replacement.

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Repair Difficulty

Medium 3/5

Required Part

VW wallbox control pilot board
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