What does fault code SUM-U201441 mean?

Diagnostic fault code details for SUM-U201441 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V60 (2011–)). Repair service at OBD Tuning.

VOLVO

SUM-U201441 - Control Module Hardware. System Internal Failures. General checksum failure

System

Suspension Module (SUM)

Volvo models this fault code applies to

Applies to the following models:

7 models

S60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Show models by year and engine (7)

What does this fault code mean?

The SUM checks its internal data with a checksum, and here the checksum for the information in the EEPROM memory is invalid. The fault is inside the control module.

Possible causes

Internal fault in the suspension control module (SUM)

What you can do

1Read and note the code, clear it and road test to see whether it returns
2Check that the connector at the SUM is firmly fitted and clean
3If the fault returns, have a workshop replace the control module, download new software and calibrate it

Symptoms you may notice3

A message appears in the information display
The Four-C function does not work
The selected drive program is not saved

General guidance for car owners. Diagnosis on the car can point to a different cause.