VOLVO
DEM-0008 - Control module. Internal fault
System
Differential Electronic Module (DEM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (5)
- Volvo S60 (2001–2009)2003–2004All transmissions except: AW55-50/51SN
- Volvo S80 (1999–2006)2003–2004Transmission AW50/51 AWD only
- Volvo V70 (2000–2008)2003–2004All transmissions except: AW55-50/51SN
- Volvo V70 XC / XC70 (2001–2007)2003–2004
- Volvo XC90 (2003–)2003–2004All transmissions except: AW55-50/51SN
What does this fault code mean?
The four-wheel drive control module (DEM) checks its calibration software, and the code is stored when it finds a fault there. The fault lies in the control module, which is usually defective, and the four-wheel drive is blocked while the fault remains. The remedy is to replace the control module.
Possible causes
- Faulty four-wheel drive control module (DEM)
What you can do
- 1Read and erase the code, then road test the car to see whether it returns
- 2Check that the fuses are intact
- 3If the code returns, have a workshop with diagnostic equipment replace the four-wheel drive control module
Symptoms you may notice1
- The four-wheel drive does not work
What the fault can affect1
- The four-wheel drive is blocked
General guidance for car owners. Diagnosis on the car can point to a different cause.