VOLVO
DDM-B108783 - LIN Bus "A". Bus Signal / Message Failures. Value of signal protection calculation incorrect
System
Driver Door Module (DDM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–)
What does this fault code mean?
The driver door module (DDM) sends and receives information over the LIN bus, including to the rear door modules and the switch panel in the driver's door. The fault is stored when the data has been corrupted and the checksum shows that the signal is not correct. Several door functions may then work poorly.
Possible causes
- Communication interference on the LIN bus
What you can do
- 1Check that the fuses are intact. Fuse positions are usually shown on the cover of the fuse box
- 2Test which door functions work using the buttons and controls, and note which do not
- 3If the functions work now, the fault may be intermittent. Then check the connectors in the doors for oxidation and loose contacts
- 4If several door functions have stopped working at the same time, have a workshop check the LIN bus and the door module
Symptoms you may notice5
- The power window does not work at all, or only partly
- Central locking does not work, including with the button in the door panel
- Child lock does not work
- Electric door mirror adjustment does not work
- Door mirror folding does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.