VOLVO
TRM-U300051 - Control Module. System Programming Failures. Not programmed
System
Trailer Module (TRM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The tow hitch control module (TRM) has not been programmed correctly and has registered an internal fault in its software. The fault may come from incorrect software or from a software download that was interrupted, and the trailer lamps may then behave incorrectly.
Possible causes
- Incorrect software in the tow hitch control module (TRM)
- A software download was interrupted
What you can do
- 1Have a workshop check whether a software download was interrupted, and if so redo it
- 2Have a workshop download new software to the tow hitch control module
Symptoms you may notice2
- Trailer lamps do not work correctly
- Trailer lighting does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.