08' xc90 AWD Disabled DEM-P188914 followup

us50931 · Post by **us50931** » 01 Oct 2011, 03:16

This is a follow up post to my previous one regarding random warning messages for the AWD Disabled. The car was not throwing ODB2 codes but the dealer pulled the above code with VIDA. Apparently the differential electronic module is saying my AWD pump malfunctioning. In hindsight, I suspect this was caused by the fact I added one new tire to the rear after having a blowout. The car had new tires (less than 10K miles) and the tire dealer said I would be fine. Dealer is quoting $850 to repair AWD issue.

Has anyone had this repair before and is it possible just the DEM is bad versus needing to replace the entire AWD pump? Also, I am considering just replacing the tires for now and seeing if the warning message returns--the theory being that the current poor tire set up is causing the DEM to flash codes, but the pump is still working properly. Might just new tires resolve the issue?

Many thanks to this resourceful group.

Post by **gshadow325** » 01 Oct 2011, 05:56

i have a 03 do my codes are 4 digits.

i had a dem-0006 and dem 0007 codes. stood for pump and pressure switch

replaced pump from a vw r32 2008 one. found it on vwvortex, everything for $100 shipped.

pump is a easy job, direct r and r and just pump back in haldex fluid when you are done.

volvodoc · Post by **volvodoc** » 18 Oct 2011, 12:41

we have had several pumps short internally its not un common the dem 006 007 are for the dem only verify you have power at the pump if you dont ck the fuse in the rem

Shawn89 · Post by **Shawn89** » 24 Oct 2011, 09:11

I also have no awd on my 2003xc70, codes are DEM-0003 System supply voltage DEM faulty voltage, DEM-0007 Hydraulic pressure Faulty hydrolic pressure and DEM-0006 Faulty Pump.
I'm wonderign if anyone can help me out to get me started. I'm not sure where I should start. Do I start with the DEM or with a sensor or the pump?
Thanks