VOLVO
CEM-DE43 - Communication with the driver door module (DDM). Signal missing
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
Communication between the CEM and the driver door module (DDM) is not working. As a result the driver door cannot be operated from the central locking switch, and the switch panel in the door does not work. The fault is most often caused by a blown fuse, a break in the earth or a poor connection, but the CAN network can also be the cause.
Mulige årsaker
- Blown fuse
- No supply to the DDM
- Open circuit in the earth wire to the DDM
- Contact resistance in the connections
- Open circuit in the LS-CAN wires to the DDM
- The DDM does not suit the car, for example a used module with other software or hardware
Hva du kan gjøre
- 1With the ignition on, try the window buttons in the driver door. If the window moves, the DDM has power and the fault is likely in the communication
- 2Check the driver door fuses in the engine bay fuse box and in the CEM. If one has blown, check its circuit for a short to earth
- 3Use a multimeter to check that the earth wire from the DDM has no break
- 4Check the connector at the DDM for loose connections and corrosion
- 5With a diagnostic tool, read the DDM ID. If it reads, the CAN communication is probably fine and the fault may be intermittent
- 6Do not replace the CEM for this code; the fault lies in the communication with the door module
Symptomer du kan merke2
- The driver door cannot be locked or unlocked with the central locking switch
- The switch panel in the driver door does not work
Hva feilen kan påvirke1
- The DDM goes into limp-home mode, so the door functions are only partly available
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