VOLVO
OBC-B1D6313 - External control relay. General Electrical Failures. Circuit open
System
On-board Charger (OBC)
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The code is set when the control relay for the engine block heater is not connected, which appears as an open circuit. Charging of the high voltage battery may then fail to happen.
Possible causes
- Engine block heater is not connected
- The control relay for the engine block heater is not connected
What you can do
- 1Have a workshop check that the connector to the engine block heater's control relay is fully seated and not loose
- 2Have a workshop check broken or loose wires to the control relay
- 3Have a workshop check that the engine block heater and the control relay are connected, and replace the relay if needed
- 4Do not work on the high-voltage system yourself, for example the battery charger or its wiring; that is a job for a workshop
Symptoms you may notice2
- Charging of the high voltage battery from an external cable does not work
- The lamp in the charging socket shows a fault or reduced charging
What the fault can affect1
- No charging of the high voltage battery can take place
General guidance for car owners. Diagnosis on the car can point to a different cause.