VOLVO
DEM-0010 - Pump motor
System
Differential Electronic Module (DEM)
Volvo models this fault code applies to
Applies to the following models:
1 modelXC90 (2003–)
Show models by year and engine (5)
- Volvo XC90 (2003–)2009–2010All engines except: B6324S, B8444S · All transmissions except: TF-80SC
- Volvo XC90 (2003–)2011All engines except: B6324S5, B8444S · All transmissions except: TF-80SC
- Volvo XC90 (2003–)2012All engines except: B6324S5, D5244T5 · All transmissions except: TF-80SC
- Volvo XC90 (2003–)2013–2014Engine B5254T9 only · Transmission AW50/51 AWD only
- Volvo XC90 (2003–)2015
What does this fault code mean?
This code concerns the oil pressure pump for the four-wheel drive, although it is titled pump motor. The control module (DEM) measures the current through the pump and compares it with limits that depend on the oil temperature. The code is stored when the current is too high for a longer period, which in practice means the pump itself is damaged. The fault is normally not noticed by the driver.
Possible causes
- Damaged oil pressure pump
What you can do
- 1Read and erase the code, then road test to see whether it returns
- 2With the ignition on, listen whether the pump starts and runs normally; it should hum and vibrate slightly
- 3If the code returns, have a workshop with diagnostic equipment check and replace the oil pressure pump
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.