XC90 AWD problems.

p.j. · Nov 15th, 2018, 20:58

I have the AWD disabled system check message. it is the Gen 4 system.
Plugged into the icarsoft scan tool gives DEM 000E - pump motor.
Is a safe assumption its the motor or should I look else where?
I have read the motor should softly hum on tick over - so maybe there is a start there, also read about resistance check on the motor, but cant remember the values.
Any advise welcomed Pete.

Tannaton · Nov 15th, 2018, 21:46

Probably the most common AWD failure after the splined sleeve on E3 models.

It's worth checking whether the pump has failed electrically or mechanically, it might have some dirt in it, or the brushes on the motor may have worn away (a few members have replaced these).

That involves removing it, inspecting it and powering it up on the bench.

p.j. · Nov 15th, 2018, 21:54

Im thinking about powering it insitu to check.
At least i know its not the angle gear, this is brand new at the dealer 6 months ago.

Nov 15th, 2018, 20:58	#1
p.j. Junior Member Last Online: Apr 27th, 2023 06:40 Join Date: Jun 2007 Location: Swansea	XC90 AWD problems. I have the AWD disabled system check message. it is the Gen 4 system. Plugged into the icarsoft scan tool gives DEM 000E - pump motor. Is a safe assumption its the motor or should I look else where? I have read the motor should softly hum on tick over - so maybe there is a start there, also read about resistance check on the motor, but cant remember the values. Any advise welcomed Pete.

Nov 15th, 2018, 21:46	#2
Tannaton Bungling Amateur Last Online: Yesterday 20:51 Join Date: Aug 2014 Location: Beverley, East Yorks	Probably the most common AWD failure after the splined sleeve on E3 models. It's worth checking whether the pump has failed electrically or mechanically, it might have some dirt in it, or the brushes on the motor may have worn away (a few members have replaced these). That involves removing it, inspecting it and powering it up on the bench. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135

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Nov 15th, 2018, 21:54	#3
p.j. Junior Member Last Online: Apr 27th, 2023 06:40 Join Date: Jun 2007 Location: Swansea	Im thinking about powering it insitu to check. At least i know its not the angle gear, this is brand new at the dealer 6 months ago.

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