Might need to recap on this thread. So its not raising? The code is for venting, which means lowering.

 

Recap from the start. I bought the vehicle sitting on the stops all the way around.
1 rear air bag blown and yellow suspension light on.
Had mechanic replace both rear air springs
He was getting some errors - Taking too long to inflate & Suspension fault
He told me I needed a new compressor - he replaced that. then found a pinched air hose that was leaking. Fixed that and said he got it to raise once but it settled again, could not raise it after that. Sent it to specialty shop for calibration...
specialty shop checked and said it was a mechanical or electrical fault and to return it to the previous shop.
Previous shop seemed to not want it back.
Seemed like exhausting was an issue and it might be a defective compressor, I replaced the compressor a second time and returned the first one I bought.
After replacing the compressor again, the compressor would air up, but car would lot lift.
Played around with it, could hear solenoid valve on compressor clicking, also valve between compressor and air tank also clicks .
Getting Suspension fault and yellow light on.
Release air and vent manually from system,,, not sure now what line because it was my buddy crawling under there helping me. Vent it out the line and compressor would air up again.
Did this several times and finally, by fluke I guess... it raised to normal height.
Got all excited and took it for a virgin 10 minute ride and returned home. Get out of car and rear is 1/2 squatted again and another 10 mins was on the bumper stops. Front stayed up with air and slowly dropped over 4 or 5 days. Seems like a leak somewhere in the rear 1/2 but to find that leak, I need to get the system to air up again.
CURRENTLY - IID tool reports gallery not venting, - Yellow suspension light on, - Compressor will not start, - Suspension will not raise.

Hope this helps clear the air. I assume when we get back into it again, if we manually vent it, the compressor will again run... but just assuming at this time. Will be Thurs, or Fri, before we can get back at it again.
The IID tool also gives me a U0132-87 (2E) code, which says Lost communication with ride level control module... A little research into this could be one of several issues causing that... one , from my understanding - a system fault somewhere and that code message seems to be a generic code that shows up because of a fault. Which would make sense to me with that venting issue . If my understanding on that is wrong, please correct me.

Best recap I can give you. Should know more this weekend.

 

Let me also add,,, though I don't think these other issues affect the suspension,,, I have a defective tire pressure sensor in the spare tire so the tire pressure light is ON on the dash, An issue with the E-brake,,, which I have yet to look into deeper, have some ideas on that, but not a priority on my list. Also the brake pad light is on, Had new brakes and rotors installed on the rear and the light stayed on. Still have to look into that, but from my understanding, none of these should be affecting the suspension or venting of the gallery. Unless I am yet mistaken again...

 

None of those are issues.

Check all the lines for damage, etc. Go over again as planned. I still think its the compressor OR the first mechanic messed up something.

 

 

The spare tire sensor I believe can be zoned out with the IIDTool, the brake pad light is likely on because the sensor was worn down before replacing the brake pads and you can just short it out or replace the sensor(s). The E-brake I don't have any ideas yet, but all this stuff is resolvable, just takes time...

 

Ok , I have had time to mess around with my IID tool and get familiar with what it can do.
I set the vehicle down on level ground before I started.
Went through different screens and found the screen where I could deflate . I deflated the air tank and all 4 corners. The orange light turned red. I turned the Module back on and the compressor came on .
Flipped the switch on the center console a couple times and the beast began to rise.
Just before all 4 corners were fully inflated to the proper height the yellow light came back on and the compressor stopped.
I went for another short drive up the street and around a few blocks and returned home and seen the rear was on it's way back down again. So for ****s and giggles, I went back to the screen to deflate all and everything deflated quite nicely.
I then had to deflate the air tank to get the yellow light to turn red again and then turned the module back on hoping the compressor would come on and inflate.
No such luck. No matter what I do I can not get the compressor to come back on again. I went into the test screen to test the different zones
I selected the rear to see if I could get it to air up , pressed the up arrow and the compressor came on for about 5 seconds.
Now unresponsive again. Anytime the yellow light is on, the fault is gallery not venting, but I can deflate the system when it's up..
I wanted to test and see if I could just air up the rear and check for a leak, But it seems it went up once again to get me excited, and refused to start up and run again.

Am I missing something on the IID tool I have not learned yet ? Or is that all Im allowed to do,,, 1 single inflation a week untill next week ? This thing is beginning to drive me nuts !!!

 

If the system deflates to bumps stops quickly, then its exhausting fine. If its slow to drop, then you could easily have an exhaust issue but its in "diagnostic" mode so the error is ignored and the tool deflates it.

Keep in mind you are taxing the system VERY heavily by deflating, then filling. If the compressor is not running it could be overheated. Was there are warning on the cluster about cool down? You should also be able to view the compressor temperature.

If the rear is dropping, the rear bags have a leak. Maybe the mechanic did not properly install the air line fitting. Or he messed with the valve block. If they are dropping that much you may be able to hear the leak. Also while the entire rear may drop, it could be just one bag with the other taking up slack. To check that you can let it drop and leave it, then have someone push the bags and see if one airbag is more deflated than the other.

 

I am aware of the temperature cut out if it gets hot, but there have been no warnings to that effect. Not saying, it's not happening. I just have not detected that. I will keep a closer eye on that next time I'm at it. .

It does seem to deflate fairly quick when I activate the deflate with the IID. I would say maybe 30 seconds , give or take. Does this deflate and exhaust through the same gallery venting that comes up as my issue ? If so and deflating is working ok, then I do not understand why the gallery won't vent on it's own when required.

One last thing, when I took it for a short drive, I was getting the message about not going over 30 or 35 mph. When that message pops up, the suspension light turns red, I can go faster and am not limited by the warning. When I slow down, the warning goes away and the suspension light returns to yellow. I assume this is normal because the system is low on the rear.

 

Actually 30 seconds seems a bit slow. I can go from off-road extended mode to access in about 5 seconds.