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Charge Port Pin Functions

Have you ever been curious about what the seven pins are for in a charging connector? Here is your chance to find out!

Pin Number and Signal

  1. 110V-220V AC (-)
  2. 110V-220V AC (+)
  3. Control Pilot
  4. Proximity Detection
  5. Ground
  6. 400~1000V DC (-)
  7. 400~1000V DC (+)

Pins 1, 2, and 5

These three pins are pretty much what you would find in a household outlet.

Pin 3

The Control Pilot (CP) pin communicates the charging status between the VCMS and charger.

  • AC charging uses a pulse-width modulation (PWM) signal.
  • DC charging uses PWM and a power line communication (PLC) signal.
  • PLC signals include SOC, temperature, remaining charge time, and payment information.

Pin 4

The Proximity Detection (PD) pin communicates charge adapter connection:

  • 4.45V = not connected
  • 1.5V = connected
  • 2.8V = V2L (Onboard Power Generator*) adapted button pressed

Pins 6 and 7

These pins are used for DC Fast Charging* current.

As always, use KGIS to find the most current service information, and thank you for supporting Kia Technical Training!

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