Ground fault breaker in the charging cable

The control unit for the charging cable charging cable has a built-in ground fault breaker that protects the car and the user from electric shocks caused by system faults.


Charging the hybrid battery must only take place with grounded and approved 230 V sockets (alternating current). If the capacity for the socket or fuse circuit is unknown, ask a licensed electrician to check the capacity. Charging above the capacity of a fuse circuit may lead to fire or damage the fuse circuit.


  • The charging cable's overvoltage protection helps to protect the car's charging system, but cannot guarantee that overload will never occur.
  • Never use visibly worn or damaged electrical sockets. This could cause fire or serious injury.
  • Never connect the charging cable to a cable extension.
  • Maintenance or replacement of the hybrid battery must only be performed by a trained and qualified Volvo service technician.


The ground fault breaker does not protect the 230 V socket (alternating current)/electrical installation.

Control unit with only indicators

P5-1817-Hybrid-Control module hybrid cable (Eu+CH) -smaller
Control unit LED1 lamps.
P5-Icon red circle 1LED lamp 1
P5-Icon red circle 2LED lamp 2

If the control module's built-in ground fault breaker is tripped, LED lamp 2 flashes red while LED lamp 1 is extinguished - check the 230 V socket (alternating current).

Control unit with both indicators and controls

If the control module's built-in ground fault breaker is tripped then the car symbol illuminates with red constant glow - check the 230 V socket (alternating current).

P6-1846-XC40H Control unit current


  • Check the capacity of the socket.
  • Other electronic equipment connected to the same fuse circuit must be disconnected if the total load is exceeded.
  • Do not connect the charging cable if the socket is damaged.
  1. 1 LED (Light Emitting Diode)

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