VOLVO
OBC-U100800 - Private Communication Network Bus (-) shorted to Bus (+). General Failure Information. No sub type information
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) has registered a short circuit in the internal communication network between itself and the charger, which sits in the same unit. The fault is set when the cable is plugged in and its switch is turned on. The fault is caused by an internal fault in OBC, so charging the high voltage battery is not possible while it remains.
Possible causes
- Internal fault in the battery charger OBC
What you can do
- 1Read out and erase the fault code, charge again with the charging cable connected and see whether it comes back
- 2Have a workshop check that the fuses that belong to the charging system are intact
- 3As it is an internal fault in the charger, have a workshop check the control module. Do not work on the high voltage system yourself
Symptoms you may notice2
- 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
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.