E16
Nissan Vehicle Diode / Proximity Circuit Error

Nissan charger shows E16; vehicle may start charging then stop with an error on both charger and car.

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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 or missing diode in vehicle inlet, EVSE proximity detection circuit out of tolerance, Damaged proximity resistor network in Nissan connector, Control board misinterpreting proximity signal

How to Fix / Troubleshooting

Safety first: Turn OFF the breaker before opening the EVSE or handling the connector internals.

  • Inspect connector: Check the Nissan connector for physical damage and ensure the latch operates smoothly.
  • Test with another EV: If another vehicle charges normally, the issue is likely with the original vehicle’s inlet or diode circuit; contact a dealer.
  • Check proximity wiring: With power OFF, open the EVSE and verify the proximity conductor is securely connected at the terminal block and not shorted to other conductors.
  • Connector handle inspection (advanced): If serviceable, open the connector handle and inspect the small components (resistor/diode) on the proximity circuit for obvious damage.

Persistent E16 across multiple vehicles usually indicates a fault in the EVSE proximity circuit or connector assembly, requiring cable or board replacement.

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Repair Difficulty

Hard 4/5

Required Part

Nissan EVSE Charge Cable Assembly
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