VOLVO
DEM-0007 - Hydraulic pressure. Incorrect value
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 the oil pressure sensor's reading against a calculated pressure. The pressure is calculated when the engine speed is above a certain value, and an electric feed pump builds up a base pressure in the clutch. The code is stored when the signal differs from the calculated pressure, which can be caused by the sensor, the pump, too little oil in the clutch, internal leakage or the control module. The four-wheel drive is then blocked or disengaged.
Mulige årsaker
- Faulty or damaged pressure sensor
- Damaged feed pump
- Too little oil in the clutch
- Internal leakage in the clutch
- Faulty or damaged four-wheel drive control module (DEM)
- Damaged clutch unit (AOC)
Hva du kan gjøre
- 1Read and erase the code, then road test the car to see whether it returns
- 2Check that the fuses are intact
- 3If you have a diagnostic tool, read the oil pressure with the engine running; it should rise as engine speed goes up
- 4Check the connector and the wire between the control module and the feed pump for damage, loose contacts and oxidation, and check that the wire is not pinched
- 5With the ignition on, listen whether the feed pump starts and runs normally. A mechanical noise from the clutch is a warning sign
- 6If the code returns, have a workshop with diagnostic equipment check the pressure, the pump and the clutch, and replace parts as 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
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.