VOLVO
DDM-B1B7086 - LIN Bus Circuit #2. Bus Signal / Message Failures. Signal invalid
System
Driver Door Module (DDM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The driver door module communicates over LIN bus 2 with the modules for the cameras on the left and right sides of the car. The fault is stored when a signal from the cameras is incorrect, and the cause lies in the module that sends the signal rather than in the driver door module.
Possible causes
- The cause lies in the sending module, that is the camera on the left or the right side
What you can do
- 1Read and clear the code, road test and see whether it returns
- 2Check that the fuses are intact
- 3Check that the connectors to the cameras are free from moisture and oxidation
- 4If the fault remains, have a workshop with diagnostic equipment determine which camera gives the faulty signal and repair it
Symptoms you may notice1
- An LED does not light up
General guidance for car owners. Diagnosis on the car can point to a different cause.