VOLVO
OBC-P0D9811 - Battery Charger Coupler Unlock Control Circuit Performance. General Electrical Failures. Circuit short to ground
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 battery charger control module (OBC) keeps watch over the unlocking and locking of the charging cable by the lock motor in the charging socket. The fault is set when the control module detects a short circuit to the lock motor. Charging the high voltage battery is not possible while the fault remains.
Possible causes
- Short circuit to the lock motor in the charging socket
What you can do
- 1Read out and erase the fault code, charge again and see whether it comes back
- 2Check that the charging socket in the car is not damaged and that the charging cable is fully seated in it
- 3Have a workshop check the cables to the charging socket. Do not work on the high voltage system yourself
Symptoms you may notice3
- Charging the high voltage battery from an external charging cable does not happen, is reduced or does not work correctly
- The LED on the charging cable or the charging socket shows a fault and charging is reduced
- The lock function in the charging socket does not lock or unlock the charging cable
What the fault can affect1
- Charging the high voltage battery is not possible
General guidance for car owners. Diagnosis on the car can point to a different cause.