What does fault code DDM-U014000 mean?

Diagnostic fault code details for DDM-U014000 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Repair service at OBD Tuning.

VOLVO

DDM-U014000 - Lost Communication With Central electronic module. General Failure Information. No sub type information

System

Driver Door Module (DDM)

Volvo models this fault code applies to

Applies to the following models:

9 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Show models by year and engine (9)

What does this fault code mean?

The driver or passenger door module keeps getting its data from the central electronic module (CEM) and checks that the link is alive. The fault is stored when communication with the CEM is absent, which can be caused by a break, a short circuit or a poor connection in the communication wire, or by a fault in the CEM or in the network. Several door functions then do not work.

Possible causes

Open circuit in the communication wire
The communication wire is short-circuited to ground or supply voltage
Contact resistance, oxidation or open circuit in the connections
The fault may lie in the central electronic module (CEM), which should be diagnosed first
If several modules also have communication faults, there is probably a common fault in the CAN network
The module is not intended for the car, for example a second-hand module with different software

What you can do

1Read the codes in the central electronic module (CEM) and diagnose them first
2Check that the fuses are intact
3Check that the connectors in the front door are secure and free from moisture and oxidation
4Inspect the wiring harness between the driver door and the CEM for chafing, pinching and visible damage
5Check whether several modules have communication faults at the same time, and if so diagnose the codes in the CEM first
6If the fault remains, have a workshop with diagnostic equipment measure on the CAN network and check that the module is intended for the car

Symptoms you may notice5

Central locking does not work, the doors cannot be locked or unlocked
The window lift does not work, works only partly or works incorrectly
The mirrors cannot be adjusted electrically or folded in
The child safety lock in the doors does not work
Warning lamps light up or behave abnormally

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