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2007 Escalade AWD Premium, 2011 CTS4 Premium Coupe
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Discussion Starter #1
Hey all, so as I mentioned in a different thread, my rear compressor has failed and I was wondering if there was a way to bypass the "service suspension system" message in the DIC without having to replace it? I recently converted my suspension to a passive setup so for all intents and purposes don't need the compressor anymore but was told that without it being in good running order the message will persist.

If there isn't a way to get around it, who makes an aftermarket replacement other than Arnott? Is the install DIY capable? If I remember correctly the compressor is above the rear passenger wheel well in the trunk <-- please confirm or deny. Any insight is appreciated, I really want to get this message out of the DIC (already checked the fuses, they're good). Thanks, in advance!
 
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I'm pretty sure that, even if you converted your shocks to passive, you still have the airbags in the rear for load leveling. I got my compressor off rockauto and installed it in 30 minutes; I didn't even need to jack up the car.
The compressor sits behind the driver side rear wheel under the truck. It's super easy to access. Of the many things I've done, this was probably the easiest and most money saved. My garage wanted $450 for it (labor+parts). There's a few hoses and a connector you have to disconnect from old and reconnect to new. I think there's only one bolt because the compressor has two bolt heads that stick out on the side which slide into the slots on the truck's cross member. Easy peasy.


I am willing to bet there is no simple bypass like there is for the shock actuators.

I got this one. http://www.rockauto.com/catalog/moreinfo.php?pk=4779699&cc=1433259&jnid=441&jpid=1

Don't get the arnott; it only comes with a rebuild kit for the dryer. The dorman comes with everything so it's just plug and play.
 

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2007 Escalade AWD Premium, 2011 CTS4 Premium Coupe
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Discussion Starter #3
I'm pretty sure that, even if you converted your shocks to passive, you still have the airbags in the rear for load leveling. I got my compressor off rockauto and installed it in 30 minutes; I didn't even need to jack up the car.
The compressor sits behind the driver side rear wheel under the truck. It's super easy to access. Of the many things I've done, this was probably the easiest and most money saved. My garage wanted $450 for it (labor+parts). There's a few hoses and a connector you have to disconnect from old and reconnect to new. I think there's only one bolt because the compressor has two bolt heads that stick out on the side which slide into the slots on the truck's cross member. Easy peasy.


I am willing to bet there is no simple bypass like there is for the shock actuators.

I got this one. http://www.rockauto.com/catalog/moreinfo.php?pk=4779699&cc=1433259&jnid=441&jpid=1

Don't get the arnott; it only comes with a rebuild kit for the dryer. The dorman comes with everything so it's just plug and play.
Thanks, for all the info morlysafer. Really helpful stuff. Did you access the compressor from underneath the truck (removed rear wheel/tire and the fender liner) or were you able to get to it from inside the cargo area (via the access where the jack/tools are)?
 
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the compressor is on the outside, completely exposed to the elements. You don't to remove anything to access it. It is literally hanging off the side of the frame rail underneath the truck to the rear of the driver's rear wheel. You can just stick your head under there and see it. For clarity, I have an ESV but I don't see why it would be different on the other models.
 

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I bypassed it in less than 10 minutes with this:

http://www.ebay.com/itm/2007-2013-Autoride-z55-shock-bypass-modules-Gm-Chevy-Gmc-Cadillac-Chevrolet-/301427790934?pt=Motors_Car_Truck_Parts_Accessories&hash=item462e7f1456&vxp=mtr

$25.00

(I got the error: service suspension system. Every time I turned the car on. I replaced my rear shocks with manual air shocks so I spliced between the 2 lines that connect to the suspension & added this. error gone instantly)

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Here is my thread on this issue

http://www.cadillacforums.com/forums/cadillac-escalade-ext-esv-forum-2007/645985-removing-service-suspension-system-dashboard.html

Resolved.
 

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2005 Cadillac Escalade
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new york city said:
I bypassed it in less than 10 minutes with this: http://www.ebay.com/itm/2007-2013-Autoride-z55-shock-bypass-modules-Gm-Chevy-Gmc-Cadillac-Chevrolet-/301427790934?pt=Motors_Car_Truck_Parts_Accessories&hash=item462e7f1456&vxp=mtr $25.00 (I got the error: service suspension system. Every time I turned the car on. I replaced my rear shocks with manual air shocks so I spliced between the 2 lines that connect to the suspension & added this. error gone instantly) ---------- Here is my thread on this issue http://www.cadillacforums.com/forums/cadillac-escalade-ext-esv-forum-2007/645985-removing-service-suspension-system-dashboard.html Resolved.
glad to see it worked flawlessly nyc
 

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2007 Escalade AWD Premium, 2011 CTS4 Premium Coupe
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Discussion Starter #8
I bypassed it in less than 10 minutes with this:

http://www.ebay.com/itm/2007-2013-Autoride-z55-shock-bypass-modules-Gm-Chevy-Gmc-Cadillac-Chevrolet-/301427790934?pt=Motors_Car_Truck_Parts_Accessories&hash=item462e7f1456&vxp=mtr

$25.00

(I got the error: service suspension system. Every time I turned the car on. I replaced my rear shocks with manual air shocks so I spliced between the 2 lines that connect to the suspension & added this. error gone instantly)

----------

Here is my thread on this issue

http://www.cadillacforums.com/forums/cadillac-escalade-ext-esv-forum-2007/645985-removing-service-suspension-system-dashboard.html

Resolved.
I'm assuming the bypass will work even if my compressor is not functioning? (bc it's not)...thanks!
 
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