E07
Webasto
Control Pilot Short to Protective Earth
Charger shows E07 or ‘CP short to ground’; charging cannot start.
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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
Moisture or conductive debris in Type 2 connector, Damaged CP conductor in cable shorting to shield, Faulty vehicle inlet shorting CP to chassis, Internal short on CP line in charger PCB
How to Fix / Troubleshooting
Safety first: Disconnect from vehicle and switch off power at the breaker before inspecting connectors.
- Inspect connector: Look inside the Type 2 plug for metal shavings, water, or dirt. Do not insert tools that could damage pins.
- Dry thoroughly: If moisture is present, gently dry with a cloth and allow the connector to air dry in a warm, dry place for several hours.
- Test with another vehicle: If E07 only occurs with one EV, the vehicle inlet may be at fault.
- Check cable flex points: If the error appears when the cable is bent, the CP conductor may be damaged and shorting to the shield or earth.
- Replace cable if needed: If damage is suspected, replace the complete Webasto cable assembly. Internal PCB shorts require professional repair.
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Repair Difficulty
Hard
4/5
Required Part
Webasto Type 2 Charging Cable Assembly
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