Volvo DEM P1, P2 (Differential Electronic Module)  

DEM copy.jpg

Issues are often related to: water damage, internal damage to the electronics, immobilizer errors, unstable engine operation, Anti-Skid Service Required message, ABS errors, etc.

Module location:

On the differential case between rear wheels. 

Recommended testing before replacing module:

  • Fuses

  • Connection

  • Battery

  • Wires

  • Communication with diagnostic tool

Supported part-numbers:

ATTENTION! The module part number often does not correspond to the number on the enclosure sticker; check the part number with a diagnostic scanner in the module parameters

30759701, 30783131, 30783197, 30783344, 30785483, 31219215, 8667461, 8667462

Ask your hardware seller about any warranty’s the product may have, as we cannot provide any hardware warranty.

List of vehicles, which have such modules:

S40 - (2005 – 2011) P1

V50 - (2005 – 2011) P1

S60 AWD - (2003 – 2009) P2

V70 AWD - (2003 – 2008) P2

V70XC/XC70 - (2003 – 2007) P2

S80 - (2003 – 2006) P2

XC90 AWD - (2003 – 2013) P2/P28