E16
BYD EV Handshake / PWM Pilot Error

Charger shows E16 and will not start; may be accompanied by a message about 'vehicle not recognized' or 'EVSE handshake failed'.

Advertisements

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.

Advertisements

Possible Causes

Damaged control pilot (CP) line in cable, Faulty CP driver on main control PCB, Incorrect PWM duty cycle configuration, Contamination on CP pin in Type 2 connector

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before inspecting the connector closely.

  • Inspect CP pin: Look for dirt, corrosion, or damage on the small CP pin in the Type 2 plug. Clean gently with a non-metallic brush.
  • Try another vehicle: If E16 only occurs with one car, the vehicle’s inlet or onboard charger may be at fault.
  • Test with another cable (if possible): Swap to a known-good Type 2 cable to rule out cable damage.
  • Power-cycle: Turn off the charger for 2 minutes, then restore power and retry.
  • Professional diagnosis: If the issue persists across vehicles and cables, the CP driver circuit on the main control PCB may need replacement.
Advertisements

Repair Difficulty

Medium 3/5

Required Part

Type 2 Charge Cable
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements