• If you currently own, previously owned or want to own an Avalanche, we welcome you to become a member today. Membership is FREE, register now!

Help Help HOW TO DELETE MAGNARIDE Z55 OPTION WITH THE TECH 2 SCANNER 2007LTZ

JimmyNoShow

Full Member
Joined
Oct 15, 2013
Messages
20
[size=8pt][size=24pt][size=10pt]I  :help: been going nuts  to remove message on dash , the dreaded Service  Suspension soon, I installed ranchos all around for 2015 Silverado ans she rides fantastic . I also tried 2.2 , 3.9 , .6, and 8 ohm resistors 20 ohm are on there way , on each shock sensor disconnected battery removed 61 and 2 and 54 fuses individully and in different combinations .I dont have an RTD fuse but others for autoride system. nothing seems to work . Im using same resistors as Arnott or Suncore Systems do. My connections are soldered good with heatshrink tubing too. I also have a Tech 2 Scanner I f someone can help with an exact procdure ??? I'm doing something wrong I know I'm on the right track .
I was reading this on a corvette forum . Magnaride sucks .Also I was trying to bench jump out my compressor on bench by putting 12v to blue and white wires and grounding black wire nothing ???? Your Opinions are needed here .Also my tech 2 after I put year and chevy light truck it askes for a letter like a b or c all the way through p . WOw Help Help  :laugh: :help: :help: :help:
[/size][/size][/size]


corvette writeup
https://www.corvetteforum.com/forums/c5-tech/3649777-any-way-to-tell-if-f55-magnetic-shocks-are-bad-with-a-tech-2-a.html
 
My mechanic has an older model Yukon Denali XL, maybe a 2003 or so, and he had removed the stock air shocks and air compressor and installed the required resistors at the air shock locations.

He bought the resistors off of eBay and I do not know the ohm value, but they were said to be the correct ones for the delete.

However, he still had that "Service Suspension" error message come up on his DIC.

I believe the resistors solved the problem with the factory stock air shocks missing, but when the air compressor was removed, the computer still had a problem with that and it threw the error message.

I poked around and found a page on the web that gave a procedure for converting the system to a passive air fill system instead of using the automatic factory system.

Buried in that article was a procedure to disable the error message on the dash.

My mechanic followed this procedure and the error message disappeared and has not returned.

Forgive me if this does not work on all trucks, but here it is:

"This passive conversion will require you to disconnect the negative terminal from the battery for ten minutes, and remove the RTD fuse from the underhood fuse block to disable the error light on the dash when permanently removing the air suspension compressor. After reconnecting the negative terminal to the battery, start your vehicle and turn the air conditioning on, checking for cold air. If you do not get any cold air from your A/C, replace the fuse and repeat the process until you do."

Now, I do not know anything beyond what is quoted here.

My mechanic shook his head when I gave him the print out, but reported positive results after he had a chance to try the procedure.

I read where you did not find the RTD (Real-Time Dampening) fuse, but I would think it has to be there somewhere if the truck has the Z55 system.

But, who knows?

In any case, maybe this will help someone else that does have the RTD fuse.

Sorry I could not be more help.

Here is a link to the article I quoted from.

I just looked up 2015 Silverado fuse box diagram and I also did not see one marked RTD.

Strange.
 
i might as well try that . I never read anything about turning on the a/c .  Mine is an 07 avalanche , i also tried the resistors off ebay ,they did not work also.My next is to make sure compressor is working .
 
Over a year later I still am stuck with service suspension system no resistance works no procedures worked no resistance on eBay Sensors nor 6 or 2.0 Or 3.9 ohms Nothing seems to work the truck rides like a dream with the Bill Steen‘s but I can’t stand seeing this message I might consider going back to all the original parts for the magna ride let alone also having to buy new coil springs seeing that I threw them out GM pisses me off with this poop
 
When I first installed my Arnott rear air shocks, air compressor and front shocks on my 2004 EXT back in 2012, the shocks each came with a bypass resistor.

I just now measured one of those resistors and it came out at 2.4 ohms and are also of a heavy, high power variety.

I wonder what is the condition of the ride height sensors on the frame?

I would not be surprised if one of those were disconnected, missing or broken, and the computer would not be happy with that situation.

You could have addressed any issues with replacing missing shocks and the compressor and still have an issue with one of the sensors on the frame.
 
Ill put my tech2 on it in a few,een a while since I messed with it , seeing I now have an airbag light on too
 
i come up with these codes via tech2 clone
c0660 06
c0590 04
c0580 04
c0575 04
c0620 08

1 code is for compressor I believe it didnt turn on when I commanded it to , so I probably unplugged it and I'm thinking resistors on shocks might be fine but ride height sensors prob need resistance too , so maybe if I measure ohm resistance on all 4 ride height sensors too then maybe that would work Who knows ?
like I said its been a while so I didn't look at 4 corners yet . But I know a lil more this year
 
RTD fuse installed or no? What resistors are all 4 sensors using now? Try to plug the compressor back in and repeat procedure in post #3? It seems like we have many variables here and I'm not quite sure of the current status of things.

Yes, certainly measure the resistance on all 4 corners looking for anomalies.

Ride height sensors deleted or still wired? The instructions from Arnott make it seem like the ride height sensors are removed permanently when converting away from air, see page 10 from their install PDF https://arnottinfo.com/manuals/C-2836.pdf


Have you attempted any sort of bypass module like that comes with a conversion kit from Arnott or Bilstein? Would this part solve the issue https://www.amazon.com/APDTY-Electronic-Suspension-2000-2014-Avalanche/dp/B00I12NBZK ? Is this what your resistors should be solving?
 
Last edited:
i think 6 ohms resistors ,tried 2 .6 , 3.9, 10 . tried modules ,It has no rtd fuse in 07 pre 07 does avalanche. ride heights connected . I think I'm gonna but new ride height sensors and new rear magnarides compressor was replaced when i was trying to figure this out last time and try to maybe fool the fronts or I'll have to rip out all 4 bilstiens although they ride great. Sick of Service message and noone seems to know how to get it done..
 
i think 6 ohms resistors ,tried 2 .6 , 3.9, 10 . tried modules ,It has no rtd fuse in 07 pre 07 does avalanche. ride heights connected . I think I'm gonna but new ride height sensors and new rear magnarides compressor was replaced when i was trying to figure this out last time and try to maybe fool the fronts or I'll have to rip out all 4 bilstiens although they ride great. Sick of Service message and noone seems to know how to get it done..
Jimmy - did you figure this out? I’m in the same boat.... only difference is after installing the resistors on all 4 (3.9ohm 50w), it works intermittently depending on where i park in my yard. I’m thinking the auto height adjuster might be throwing the code, so if anyone might now how to disable that, it may potentially work.
 
Jimmy - did you figure this out? I’m in the same boat.... only difference is after installing the resistors on all 4 (3.9ohm 50w), it works intermittently depending on where i park in my yard. I’m thinking the auto height adjuster might be throwing the code, so if anyone might now how to disable that, it may potentially work.
Tardy to the party but I have an '09 LTZ with Z55. Bought "bypass" shocks for the rear, and got the Service suspension message intermittently. Thought it might be one of the bypass resistors, so I cut the plugs off the wires and soldered resistors in to all 4 corners. I still get the Service Suspension but depending on where in the yard I park as well. I was guessing it was one of the ride height level sensors, but as far as I know (if anyone knows otherwise please share) only a Tech 2 scanner will read the suspension codes. I've been keeping my eye on eBay for an original, as the one place that had clones had bad reviews on them.
 
After years of struggling I wonder how many owners wished they had just replaced with OEM parts?
 
Back
Top