What does fault code CEM-U300051 mean?

Diagnostic fault code details for CEM-U300051 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V60 (2011–)). Repair service at OBD Tuning.

VOLVO

CEM-U300051 - Control Module. System Programming Failures. Not programmed

System

Central Electronic Module (CEM)

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 central electronic module (CEM) has found an internal fault in its components, and the module is not programmed correctly. The fault is caused by a software error and is stored while the ignition is on. It can stop the engine from starting.

Possible causes

Software error in the central electronic module (CEM)

What you can do

1Read and clear the code, then road test the car to see whether it comes back
2Has the car recently had new software or programming that was not completed? Tell the workshop
3Check that the battery is charged and the terminals are tight
4If the fault returns, have a workshop reload the module with the latest software

Symptoms you may notice1

The engine does not start

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