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Hello,


Sadly the part 5wp33504-01 stopped working on my car.

I am looking to sell it for $149 plus shipping to the middle 48 states.
How long did it work? What changed? Trying to learn the "rules" with these and so far... There don't appear to be any.

I love the idea of this mod, it's affordable and an easy swap, but I can think of a lot of different ways I could spend $150 (your price is fair, seems to be the going rate) and maybe leave less disappointed.
 

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It worked for about 3 months. The only thing I can think of that changed was the feel of the car. It's my only daily so I'd like to get rid of this part and put the old on back on. I feel as if you'd get more use out of it than me with the mods you have.
 

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I looked when I swapped my O.E.M. D.E.M. back. There were no leaks everything was bone dry. I feel as if it just stopped working. The car gave me zero CELs or anything to my notice or knowledge. If anyone wants to offer me a reasonable price I'd be happy to part with it.
 

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I looked when I swapped my O.E.M. D.E.M. back. There were no leaks everything was bone dry. I feel as if it just stopped working. The car gave me zero CELs or anything to my notice or knowledge. If anyone wants to offer me a reasonable price I'd be happy to part with it.
That's unusual. Some should leak out when the module and it's solenoid/sensor is pulled out.
 

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I'm curious to ask this, would this work on a 2012 XC70 with the 3.2 and AWD? I did some reading and just wanted to ask, mostly because I saw Michael's video and was curious to see if it could work on my car. If not that's fine. Cheers!
 

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Today i finally got the chance to install the haldex controller. Could not drive the car because the exhaust is of. But i started the car, yes it was very loud. But no warning came on yet. Hopefully i can finish the exhaust tommorow and take it out for a sping to see if the warning stays off
 

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Finally got to drive it today. So far it seems to work with no errors. I need to do some more testing to see if it works with DSTC on and off. I mostly drive with DSTC of now because the DSTC is babying alot. In some corners it kicks in were it should not kick in. Mostly normal driving it could also kick in somehow.

5Wp22228-02 on a V50 T5 AWD '05 with DSTC
 

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Update:

Still working good and no problems. No error with or without DSTC. Works in all modes.

Driving wise, i cant say it transformed the car but some corners it hauls ass trough the corner without understeer. Backend will kick out sometimes and without DSTC on it still kicks in. havent driven that much with the race mode mod so no opinion yet. Hardly any rain but yesterday in a sharp corner after the traffic light with a damp road it still had massive understeer. But hey its not a RWD car, same corner i could do a nice drift with my MX-5, no luck yet with the V50

I still need to hookup VIDA to see what kind of data of the haldex controller i can get out of it to see how it performs now
 

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Just had some adjustable rear camber arms installed on Mrs T’s 2005 V50 T5 AWD GT. 10 minutes away “Anti Skid Service Required” DTC pops up. Got it home...used my iCarSoft i906 to clear the code. Drove 10 minutes - ASSR Code pops up again. Drove it home. Parked it overnight - started up the next morning - no ASSR code for 5 miles...then popped up again. Had iCarSoft i906 connected so cleared the code and took it back to Indy who did the camber arm work.

Not able to diagnose/fix the ASSR Code further, so took it in to the nearest Volvo Dealer. Service tech sez my DEM is bad - repair estimate >$2,000.00.

Resurrecting this thread as I’m hoping that replacing my bad P1 Haldex2 DEM with a used Haldex3 DEM will be a far less expensive repair - with the added benefit of a ‘better’ front/rear traction distribution.

What say you - fellow swedespeeders?
 

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Discussion Starter #472
You get camber arms installed and minutes later your DEM goes bad? Possible, but very unlikely.
Check that the ABS sensors are properly connected and make sure there's not any damage to the sensors or wheel bearing themselves. Maybe they got unplugged or hit with a wrench during the install. All four wheel speed sensors need to be properly working for traction control to function.

Also, don't drive with iCarSoft connect to the OBDII port. I've had this trip a false DSTC error too.

You can unplug your DEM and you're not going to an Anti Skid Service Required message. So I think something else is up.
 

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Ridiculous. They knocked off a wheel sensor. Don't blame them those parts get fragile. But you need a new one.
 

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You get camber arms installed and minutes later your DEM goes bad? Possible, but very unlikely.
Check that the ABS sensors are properly connected and make sure there's not any damage to the sensors or wheel bearing themselves. Maybe they got unplugged or hit with a wrench during the install. All four wheel speed sensors need to be properly working for traction control to function.

Also, don't drive with iCarSoft connect to the OBDII port. I've had this trip a false DSTC error too.

You can unplug your DEM and you're not going to an Anti Skid Service Required message. So I think something else is up.
Thanks - my initial reaction as well.

I’ll call the Volvo Dealer that diagnosed the “bad” DEM and ask for the Tech’s notes on each wheel’s ABS sensor data. I was charged $195.00 plus tax for this diagnosis - if their diagnosis wasn’t correct or missed an obvious fault (broken ABS sensor or loose connection), then I’ll call em out. I really, REALLY hate “replace parts at random til it’s fixed” diagnosis...especially at $2,000 per.

Thanks also for the “unplug your iCarSoft Code Reader tip” - now disconnected. I might disconnect the DEM until resolved cuz the dash warning is SO annoying!
 

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Ridiculous. They knocked off a wheel sensor. Don't blame them those parts get fragile. But you need a new one.
Yeah - see above response to MyName. I’ll put her up on ramps and look around to see if anything obvious is loose or busted. I asked shop that did the Adjustable Camber Arm Install and Front Strut Mount mod to check/clean Wheel Sensor connections. They’re not a Volvo specialist however. Volvo Dealer (on the other hand) SHOULD have checked Wheel Sensors and connections during their diagnosis.

If one of the Sensors was damaged..or connection compromised during install - Camber shop said they’d make amends. Would be nice to know which sensor cuz I’d hate to replace em all if only one is bad.

I explained to Volvo Dealer that I had just had some work done on front and rear suspension when I dropped it off.

Comment in Tech notes say “DEM Wiring Harness crimped by Camber Arm” - I asked if this led to DEM failure - Dealer response was “probably not - but you should replace this $100.00 harness anyway”

I brought it back to Camber installer to correct DEM wiring harness placement. They inspected the wiring harness’ plastic shielding and saw/found no damage to the harness wiring. They also zip-tied the harness out of the new adjustable camber arm’s way.
 

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If you disconnect the DEM the warning will always be there. You can diagnose the wheel sensors with a pro tool or VIDA - basically, drive straight and slow and read each wheel speed.

If not available, then closely inspect each rear wheel. The sensor is a little nub at 12 o'clock above each axle, with a single wire leading to it. Inside the hub, there's a star-shaped ring, the points whizz past the sensor and send pulses. Sometimes, those teeth fall off, or the whole ring gets mashed.

Maybe it's just a broken wire or pulled connector.
 

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Discussion Starter #477
I might disconnect the DEM until resolved cuz the dash warning is SO annoying!
I should clarify. A bad DEM should not be giving you an Anti Skid Service Required message. What I mean is that you can unplug your DEM and you still wouldn't see this message, so it is unlikely the DEM is at fault for your warning.

You'll still have the Anti Skid Service Message until you address the problem that is causing that fault.

All that being said, I don't think the DEM gives any sort of fault message on the dash. People who have done the upgrade in this thread completely lack communication with the DEM afterwards, but there is no fault. It's also how many people drive around in FWD without ever knowing there's a problem with the DEM. So it could be possible that you also have a DEM problem which the dealer diagnosed. Easiest way to check for functioning AWD with VIDA is to pull the handbrake one click and take a corner quickly, then do the same with the handbrake off and see how it compares; the handbrake disables rear wheel power.
 

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Wheel sensor right rear 2005 AWD

Note how close it, and the connection cable, is to the upper control arm outboard end.
 

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“I should clarify. A bad DEM should not be giving you an Anti Skid Service Required message. What I mean is that you can unplug your DEM and you still wouldn't see this message, so it is unlikely the DEM is at fault for your warning.

You'll still have the Anti Skid Service Message until you address the problem that is causing that fault.

All that being said, I don't think the DEM gives any sort of fault message on the dash. People who have done the upgrade in this thread completely lack communication with the DEM afterwards, but there is no fault. It's also how many people drive around in FWD without ever knowing there's a problem with the DEM. So it could be possible that you also have a DEM problem which the dealer diagnosed. Easiest way to check for functioning AWD with VIDA is to pull the handbrake one click and take a corner quickly, then do the same with the handbrake off and see how it compares; the handbrake disables rear wheel power.

Thanks MyName. I don’t have access to VIDA - so can’t test AWD using the method you describe. Given your analysis above - agree that DEM ‘might’ be bad (iCarSoft i906 sez ‘No Communication’ with Module). More likely that Adjustable Camber Arm/Front Strut Tower mod installer bumped or damaged a wheel sensor, consequently leading to the Anti Skid Service Required dash message.”


My plan is to call the Volvo Dealer Service Advisor tomorrow and ask for Technician’s notes/diagnostics which led to ‘bad’ DEM and replacement recommendation. If tech didn’t test/check wheel sensors before determining DEM was bad - then tech didn’t read notes about why my V50 was being brought in in the first place.

There has to be a way to test Wheel Sensors, right? tmtalpey suggests a method in an earlier reply. I gotta believe that a Certified Volvo Technician would have a way to to test wheel sensor operation and connectivity to the DEM. If Volvo Tech didn’t test Wheel Sensors - then why did I pay over $200 for ‘fault diagnosis’ which didn’t address the problem (Anti Skid Service Required) I came in with?
 

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“If you disconnect the DEM the warning will always be there. You can diagnose the wheel sensors with a pro tool or VIDA - basically, drive straight and slow and read each wheel speed.

If not available, then closely inspect each rear wheel. The sensor is a little nub at 12 o'clock above each axle, with a single wire leading to it. Inside the hub, there's a star-shaped ring, the points whizz past the sensor and send pulses. Sometimes, those teeth fall off, or the whole ring gets mashed.

Maybe it's just a broken wire or pulled connector.”



Thanks tm. I put the V50 on ramps last night and fumbled around each wheel to see if anything was obviously loose or broken around the wheel sensor(s). Nothing obvious. Then again - these sensors are in pretty awkward locations, so I probably missed something.

As I mentioned in my response to MyName - I’ll call the Volvo Service Advisor and ask some pointed questions about their diagnosis of a bad DEM. I suppose I should have started a new thread topic about my problem...but it’s so much more fun to get responses from “The Collective” on this thread.
 
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