VOLVO
DEM-0007 - Hydraulic pressure. Incorrect value
System
Allradantrieb (DEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
7 ModelleS40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (14)
- Volvo S40 (2004–2013)2005–2010Nur Getriebe: AW50/51 AWD, M66 AWD
- Volvo S60 (2001–2009)2003–2005Alle Getriebe außer: AW55-50/51SN
- Volvo S60 (2001–2009)2006–2008Alle Getriebe außer: AW55-50/51SN, TF-80SC
- Volvo S60 (2001–2009)2009Nur Getriebe: AW50/51 AWD, M58
- Volvo S80 (1999–2006)2003–2006Nur Getriebe: AW50/51 AWD
- Volvo V50 (2004–2013)2005–2010Nur Getriebe: AW50/51 AWD, M66 AWD
- Volvo V70 (2000–2008)2003–2005Alle Getriebe außer: AW55-50/51SN
- Volvo V70 (2000–2008)2006–2007Alle Getriebe außer: AW55-50/51SN, TF-80SC
- Volvo V70 XC / XC70 (2001–2007)2003–2007
- Volvo XC90 (2003–)2003–2004, 2006Alle Getriebe außer: AW55-50/51SN
- Volvo XC90 (2003–)2005Alle Getriebe außer: AW55-50/51SN, TF-80SC AWD
- Volvo XC90 (2003–)2007Alle Getriebe außer: AW55-50/51SN, TF-80SC
- Volvo XC90 (2003–)2008Alle Getriebe außer: TF-80SC
- Volvo XC90 (2003–)2009Nur Getriebe: AW50/51 AWD
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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)
Was Sie tun können
- 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
Symptome, die Sie bemerken können1
- The four-wheel drive does not work
Was der Fehler beeinflussen kann2
- The four-wheel drive is blocked
- The four-wheel drive is disengaged
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.