E11
BougeRV
Vehicle Diode / Pilot Line Integrity Fault
Charger displays E11 and stops charging; may be labeled as "EVSE fault" or "vehicle error".
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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
Missing or shorted diode in vehicle inlet, Short between pilot and ground in output cable, Faulty pilot monitoring circuit on main control board, Contamination inside J1772 connector causing unintended conduction
How to Fix / Troubleshooting
Important: This error can originate from the vehicle or the charger. Always rule out the vehicle by testing another EV if possible.
- Step 1 – Test with another EV: If E11 only appears with one vehicle, the car's inlet or onboard charger may be at fault. Consult the vehicle manufacturer.
- Step 2 – Inspect connector: Disconnect power. Inspect the J1772 connector for metallic debris, moisture, or damage between the pilot and ground pins. Clean with electrical contact cleaner.
- Step 3 – Cable continuity check: With the charger disconnected from mains, use a multimeter to check for shorts between the pilot conductor and ground within the BougeRV output cable.
- Step 4 – Board diagnostics: If the cable is good and E11 occurs with multiple vehicles, the pilot monitoring circuit on the main control board may be defective and require replacement.
- Step 5 – Replace cable if needed: If a short is found in the cable, replace the BougeRV J1772 output cable assembly.
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Repair Difficulty
Hard
4/5
Required Part
BougeRV J1772 Output Cable Assembly
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