VOLVO
SUM-U300017 - Control Module. General Electrical Failures. Circuit voltage above threshold
System
Suspension Module (SUM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The fault concerns a supply voltage to the SUM that is too high. One of the causes is a fault in the charging system, and the Four-C function is switched off.
Possible causes
- Fault in the charging system
What you can do
- 1Check that the battery terminals are clean and tight
- 2If you have a diagnostic tool, compare the supply voltage to the SUM in live data with the battery voltage
- 3If the fault returns, have a workshop check the charging system, since it is one of the possible causes
Symptoms you may notice2
- A message appears in the information display
- The Four-C function does not work
What the fault can affect1
- The Four-C function is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.