VOLVO
DIM-U1A2500 - Lost Communication With ICM. General Failure Information. No sub type information
System
Driver Information Module (DIM)
Volvo models this fault code applies to
Applies to the following models:
6 modelsS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The instrument cluster (DIM) no longer receives information from the infotainment control module (ICM), and the communication between them is broken. The fault therefore concerns the connection between the modules and not a failure of the instrument cluster itself.
Possible causes
- Break in the communication wire
- The communication wire is shorted to earth
- The communication wire is shorted to supply voltage
- Poor contact, oxidation or breaks in the connections
What you can do
- 1If the fault codes DIM-U001000 or DIM-U030000 are stored at the same time, deal with them first as they can cause the same symptoms
- 2Check that the fuses are intact. Their location is in the owner's manual or the fuse list
- 3Check that the connectors in the instrument cluster and in the infotainment system are fully engaged and clean
- 4Measure with a multimeter that the CAN wires between the modules have no break and are not shorted to earth or supply voltage
- 5If the fault remains, have a workshop investigate the infotainment control module and the CAN network before the instrument cluster is replaced
Symptoms you may notice1
- The clock setting does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.