VOLVO
OBC-P0A1F87 - Battery Energy Control Module. Bus Signal / Message Failures. Missing message
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) monitors its internal functions and sets the code when an incorrect value persists for a while. The fault may lie in poor contact at the connectors and joints, or in disturbances on the CAN network.
Possible causes
- Contact resistance, oxidation or poor contact at connectors and joints
- Disturbances or temporary breaks on the CAN network
What you can do
- 1Have a workshop check that the connectors at the charging socket and at the battery charger are fully seated and free from oxidation
- 2Have a workshop check damage and chafing on the wires running to the charging socket and the battery charger
- 3Test charging with a working charging cable to see whether the fault remains
- 4Have a workshop check the CAN network and the communication with the battery charger
- 5Do not work on the high-voltage section yourself; the battery charger and its connections are a job for a workshop
Symptoms you may notice5
- A warning symbol and text message are shown
- Charging from an external cable does not work or works poorly
- The high voltage battery discharges or charges poorly
- The lamp in the charging socket signals a fault or reduced charging
- The lock of the charging socket does not lock or unlock
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.