VOLVO
DEM-0003 - System voltage. Faulty voltage
System
Firehjulsdrift (DEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (14)
- Volvo S40 (2004–2013)2005–2010Kun girkasse: AW50/51 AWD, M66 AWD
- Volvo S60 (2001–2009)2003–2005Alle girkasser unntatt: AW55-50/51SN
- Volvo S60 (2001–2009)2006–2008Alle girkasser unntatt: AW55-50/51SN, TF-80SC
- Volvo S60 (2001–2009)2009Kun girkasse: AW50/51 AWD, M58
- Volvo S80 (1999–2006)2003–2006Kun girkasse: AW50/51 AWD
- Volvo V50 (2004–2013)2005–2010Kun girkasse: AW50/51 AWD, M66 AWD
- Volvo V70 (2000–2008)2003–2005Alle girkasser unntatt: AW55-50/51SN
- Volvo V70 (2000–2008)2006–2007Alle girkasser unntatt: AW55-50/51SN, TF-80SC
- Volvo V70 XC / XC70 (2001–2007)2003–2007
- Volvo XC90 (2003–)2003–2004, 2006Alle girkasser unntatt: AW55-50/51SN
- Volvo XC90 (2003–)2005Alle girkasser unntatt: AW55-50/51SN, TF-80SC AWD
- Volvo XC90 (2003–)2007Alle girkasser unntatt: AW55-50/51SN, TF-80SC
- Volvo XC90 (2003–)2008Alle girkasser unntatt: TF-80SC
- Volvo XC90 (2003–)2009Kun girkasse: AW50/51 AWD
Hva betyr feilkoden?
The four-wheel drive control module (DEM) compares its own supply voltage with the voltage in the central electronic control module (CEM). The code is stored when the two differ too much, which can be caused by a signal wire shorted to voltage or to ground, or by a break in the supply. The four-wheel drive is blocked or disengaged for as long as the fault is active.
Mulige årsaker
- Signal wire shorted to voltage
- Signal wire shorted to ground
- Break in the supply voltage
Hva du kan gjøre
- 1Read and erase the code, then road test to see whether it returns
- 2Check that the fuses are intact
- 3If you have a diagnostic tool, read the four-wheel drive control module voltage at idle and compare it with the battery voltage; any difference points to the supply
- 4Check the wire to the connected unit for damage, and the connectors for oxidation and contact resistance
- 5If the fault is not active now but has been, it is probably intermittent; check the connectors carefully and watch whether it comes back
- 6If the code returns, have a workshop with diagnostic equipment check the supply voltage and replace the control module if needed
Symptomer du kan merke1
- The four-wheel drive does not work
Hva feilen kan påvirke2
- The four-wheel drive is blocked
- The four-wheel drive is disengaged
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