VOLVO
SUM-0243 - Control module. Internal fault
System
Suspension Module (SUM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Show models by year and engine (7)
What does this fault code mean?
The suspension module (SUM) has found an internal fault in its software. The fault lies in the control module and not in any wiring, and Four-C control is switched off for as long as the fault remains.
Possible causes
- Fault in the software
What you can do
- 1Read the fault code, clear it and road test the car to see whether it returns
- 2If it returns: have a workshop reload the software in the suspension control module
Symptoms you may notice1
- No noticeable symptoms for the driver
What the fault can affect1
- Four-C control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.