VOLVO
DEM-U030000 - Internal Control Module Software Incompatibility. General Failure Information. No sub type information
System
Differential Electronic Module (DEM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (13)
- Volvo S60 (2011–)2011–2015
- Volvo S80 (2007–)2007–2015
- Volvo V40 Cross Country (2013–)2013–2015
- Volvo V60 (2011–)2011–2015
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008–2015
- Volvo XC60 (2009–)2009–2015
- Volvo XC70 (2008–)2008–2015
- Volvo XC90 (2003–)2005–2006Engine B8444S only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2007–2010Engine B6324S, B8444S only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2011Engine B6324S5, B8444S only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2012Engine B6324S5 only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2013–2014Engine B6324S5, D5244T18 only · Transmission TF-80SC AWD only
What does this fault code mean?
The four-wheel drive control module (DEM) checks its own configuration ID against the signal setup that the central electronic module (CEM) sends out on the CAN network. If the IDs do not match, or if communication between the two has been interrupted, the code is set. The fault may occur if the module was not built for this vehicle, for example a used module with other software, or because of a break in the CAN wiring.
Possible causes
- Incorrect CAN configuration ID, as the module was not built for this vehicle, for example a used module with other software or hardware
- Open circuit in the CAN wiring running to the central electronic module (CEM)
What you can do
- 1Read off the fault codes, note them and clear them. Test drive the vehicle to see if the code returns
- 2Check that the fuses are intact and that the battery is in good condition
- 3Follow the CAN wiring running to the central electronic module for chafing, pinched areas and loose connectors
- 4If you have a diagnostic tool, check that the control module responds to diagnostic commands, even though it is not communicating normally
- 5If parts have been changed or the control module was recently replaced, tell the workshop, since a new control module needs the right software for the vehicle
- 6If the fault remains, have a workshop check the configuration and program the control module with the correct software, or replace it if it is wrong
Symptoms you may notice4
- Four-wheel drive does not work
- Message in the display
- The anti-spin warning lamp is lit
- General warning lamp lit
What the fault can affect1
- The control module switches itself off and does not communicate normally on the CAN network, but it still responds to diagnostic commands
General guidance for car owners. Diagnosis on the car can point to a different cause.