2001 Allroad Air Suspension Problem 65535 - Internal Control Module Memory Error!!

[ENDEE666]

65535 - Internal Control Module Memory Error!!

Is the only solution a new module?? Code won't clear, and the front is higher than I have ever seen any Allroad go, the rear is about level 3... How can I fix/troubleshoot this?

[ENDEE666]

As I'm sitting in the car searching on laptop etc, it went from reading level 3 to 2 after a while. Now reads level 1. Yet it's still high as hell and I heard no compressor or valves..

And now the lights are changing as if its changing heights, but not..

As I read Measuring Blocks, the front right height seems wacky.. In groups 4 & 5 it sometimes reads 0 extension on just that corner, while the other front is 188 extension.. Yet the level control sensors are reading similar for the fronts... 61 & 59.. But the rear level sensors are 23 & 22..

After checking some more times, I got an error for that front right sensor as well.

2 Faults Found:

01769 - Sensor for Vehicle Leveling: Front Right (G289)
57-00 - Electric Circuit Failure

65535 - Internal Control Module Memory Error
00-00 - -

[redquattro]

There's a limited supply of the 2001 modules, you will need to match it up by part number. I would disconnect it from power for a day or 2 and plug it in again. You can also try audiS4parts.com to source a module as well.
http://img.tapatalk.com/d/13/12/24/zenuhene.jpg

[8520]

$300? Damn.

If it comes down to it, I can pull mine, but mine is an 02

[ENDEE666]

Slight update.. I pulled off the plug for the front right sensor (the one that threw a code) and the connector had some corrosion on it. Cleaned it out thorough with contact cleaner, on both sides, and then blew it dry with an air can. Didn't seem to fix the issue, but obviously needed to be done.

Going to fumble with that rear module to see if I can get it unplugged and let it sit a while..

[ENDEE666]

In case this ever come up in future searches, I will share this part. And in the event I end up needing to do this.. I was trying to find a good pic of the control module harness, so I can figure out what I needed to do, how the harness unplugs. Found a good write up on removing the whole thing, with a good clear pic of the unit itself over on QW. Came up in a google image search-

http://forums.quattroworld.com/allroad/msgs/148890.phtml

Now that I see what I have to unplug, I am going to fumble with that now. I can take one of my other cars, or make the wife drive for Christmas Eve & Christmas day, so it can sit unplugged. IF I can get it unplugged without all that removal.. I still haven't wrapped any gifts, and it's 11am Christmas Eve....

[ENDEE666]

In that QW thread, he mentions - "I don't understand why the big fuse hidden behind the trim panel below the steering wheel didn't protect the module, or why the relay near it didn't either."

Where is this fuse? Maybe that's also worth checking??

[blkrhyno]

Did I miss something ? When did you get an allroad ?

[ENDEE666]

2 weeks ago :)

[ENDEE666]

Got the harness unplugged.. NOT easy, and of course because its 28*F here, the 13 year old plastic clip holding it in broke. Then it fell down next to the canister. Took about 20 min to fish that out. But I got the piece & Gorilla glued it back together. I will let this sit unplugged (and glue curing) for a good 24 hours.. I may be an Atheist, but could really use a Christmas miracle lol...

While the plug is out in the open, should I test anything with a meter to see if there is a fuse issue or anything?

[blkrhyno]

You can try taking the module out and leaving for a few days then plug it back in and see what happens, worked for a few people on quattroworld from what I've read. If you have to change it I''ve seen a couple on audiforparts.com just make sure it's the the same letter as yours.

[ENDEE666]

Yeah, they are expensive. Even used. So I really hope the unplugged trick does it..

[A62TURBO]

Nick, your an Atheist?

[ENDEE666]

Nick, your an Atheist?

Yup. But if the "Audi Gods" fix my car, I may consider converting.. The Church Of Audi Lovers" will meet at the local pub of your choice, any day of the week, and any time you like. Come one come all, all are welcome. And the only "Sins" are tasteless & ugly mods, and they will not be forgiven..

[V1nny]

Yup. But if the "Audi Gods" fix my car, I may consider converting.. The Church Of Audi Lovers" will meet at the local pub of your choice, any day of the week, and any time you like. Come one come all, all are welcome. And the only "Sins" are tasteless & ugly mods, and they will not be forgiven..

Converting involves painful four step circumcision ritual (just look at Audi rings to get the idea).. I saw somewhere advertized repair of suspension module, but ideally would look for 2001 specific part on ebay or one of the dismantlers.
http://www.ebay.com/itm/02-03-04-AUDI-ALLROAD-ECM-SUSPENSION-SELF-LEVELING-COMPUTER-MODULE-4Z7907553E-/141146064333
Later revisions (E, F) of the same part should work on 2001 too, the only change should be speed at which suspension would lower itself.
cheaper from the other side of pond:
http://www.ebay.co.uk/itm/2001-Audi-A6-ALLROAD-2-7t-BREAKING-Air-suspension-control-unit-ECU-4Z7907553G-/121210071000

[ENDEE666]

I've seen a few versions of the module. Not sure if they are or aren't cross compatible. From what I saw, they have slightly different programs for when (speed wise) they auto lower or auto raise.. Hoping they are cross compatible, in the event I end up needing one..

[8520]

In that QW thread, he mentions - "I don't understand why the big fuse hidden behind the trim panel below the steering wheel didn't protect the module, or why the relay near it didn't either."

Where is this fuse? Maybe that's also worth checking??

That fuse and relay are for the compressor itself. 40amp if memory serves.

[ENDEE666]

Oh. So this probably wouldn't help my shituation..

[8520]

Oh. So this probably wouldn't help my shituation..

Nope.

[ENDEE666]

Left it unplugged for about 48 hours and still getting same error. Did seem to fix the front right level sensor at least. That was reading weird heights, sometimes even 0. That seems ok now.. But still-

Control Module Part Number: 4Z7 907 553B
1 Fault Found:
65535 - Internal Control Module Memory Error
00-00 - -

Could this possibly have anything to do with the fact I flashed the ecu ~1 day before this happened? Maybe the car's ecu is looking for a different level control unit, if file is for a different year? Or would one not effect the other?

EDIT- Disregard question about ECU file. I flashed my stock file back to the ECU and the issue was the same.. So I reflashed the chipped file.

[ddillenger]

if you can't find the exact module I can clone your bad one's file onto a replacement. They'd have to be hardware identical though.

[ENDEE666]

What is the deal with the different modules anyway? From what I saw in one of the SSP's it just had different auto-adjust speed behavior. So one would not work in a car intended to have the other? I would think it would just be a change in the auto-height behavior..

I wouldn't even know how to flash the module though, unless it can be done via OBD, which I doubt..

And since Vag Com shows "4Z7 907 553B", that is the one I have/need, correct?? Haven't removed everything to see the module itself..

[ddillenger]

What is the deal with the different modules anyway? From what I saw in one of the SSP's it just had different auto-adjust speed behavior. So one would not work in a car intended to have the other? I would think it would just be a change in the auto-height behavior..

I wouldn't even know how to flash the module though, unless it can be done via OBD, which I doubt..

And since Vag Com shows "4Z7 907 553B", that is the one I have/need, correct?? Haven't removed everything to see the module itself..

Ideally you want to pull the module and find one with matching numbers. As for cloning it, I'd need both modules here to do it.

[ENDEE666]

Cool, appreciate that offer. Unless I find a stupid cheap deal on the wrong module, I will probably just buy the correct one.. So far they seem to be like $300, which is fucking annoying.. This is after I just bought used (but very good cond) rear bags because the right rear leaked at level 2 or 1 if it sat a while. And all within 2 weeks of owning the car... Otherwise, the car seems really good, aside from pass VCG leaking pretty bad.. So hopefully this has me good for a while..

I would much rather spend $ on replacing the hideous twin spoke wheels with something less hideous..

Is the car driveable like this? I haven't driven it since this happened, I was almost home when it started. If it can be driven, just without any adjusting, is there a way to release some air to bring it to a more normal height? Right now, the front looks MAXXED, like level 4+.. The rear looks at least level 3.. I doubt a 402 mod would work if there is no communication with the module.. So I would more need a manual valve release or something.. Just wishhful thinking..

[ENDEE666]

Anyone know of any Allroads being parted out? I can't seem to find the module I need available.. Tried Ebay, Audis4parts & a few others already..

[G0to60]

There was an 01 here in Portland that was being parted out recently on CL. I'll see if I can dig up the ad.

edit: This isn't the one that I was thinking of but they are parting an 01 allroad.

http://portland.craigslist.org/clk/ptd/4217001122.html

[ENDEE666]

Cool, just emailed them. Thanks!

[PaperToast]

i know this wont help much, but that error code looks awfully like the one when the srs air bag computer blows up
so with that said, it seems replacement is your only option

[Loki03]

Have you checked the rosstech article?

http://wiki.ross-tech.com/wiki/index.php/65535

I have heard of a vac line in some modules going bad. (not sure yours even has a vac line in it) But if it were me I'd be checking out the module and the plug to the module itself. (you may also check the ECU wiring and plug... be sure it's not getting wet, it's in the rain tray)

When you adapt and do a 402 mod (trick the computer into changing ride height) you basically lie and tell the computer the car is higher than it is. You could do the same and tell the truth, but I don't think it will fix your issue with the module.
I don't advise doing that when there are still codes being thrown, but if the previous owner did something to it, it may be possible that it's causing issues if the air ride has some form of "limp mode"

The front ride height should be able to adjust on one good side (my right front sensor is not working right now and it defaults to the measurement on the left) Best of luck!


Oh yeah... and as a general rule, if it's VW/Audi/German and you are checking wiring, remove the ground strap and clean it all up before re-installing!

[ENDEE666]

Its not wet, I checked that early on. Its not in the rain tray, the module in question is in the rear side panel of the hatch. It also has its own ground, that is in tact & clean. Due to the error, it will not even allow me to access the 402 setttings, or adjust height.. To me, I am pretty sure the module is toast..

I have only had the car about 2 weeks. But it worked fine until this occured out of nowhere. Aside from a known leak in the right rear bag, that only occurred at level 1 or 2. This entire 3 days that this issue has been occuring, and the car not being driven, it has held height fine. Way up in the air..

[ENDEE666]

Can anyone tell me if the modules with different last letters are cross compatible? I find a lot of E boxes but mine is a B...

[A62TURBO]

Change in last letter usually indicates a revision to the same part number. You should be fine.

[ENDEE666]

Some things I read lead me to believe that. Some don't. I know over the years there was changes to what speeds it auto changes heights. I'm fine with that. But when the *used* version of the part is $300+, I want to know for sure it will work from someone who did it.. I hope I can, the E version is everywhere.

[Loki03]

I mean the ECU... engine control unit, not the air ride module. I believe it is in the rain tray on the driver's side.

[ENDEE666]

Correct, the ecu is there. But its fine & dry and would not throw a "level control module" error..

As for module revisions, here is what I found so far-
4Z7907553H replaced 4Z7907553B
4Z7907553F replaced 4Z7907553E

However, I still can't find anything that says if an E or F will work where a B or H was intended.. An old SSP I found compares an A with a B, and just says the speed-specific automatic height adjustment criteria is different.. And that the B does not have "parking level control" in its programming. I also can't find if there is a way to code one to work via Vag Com or anything..

Apparently the "A" model was an early version for other countries, where the US got the B..

Does anyone have a live version of ETKA that can filter by VIN # and see if that shows the E or F will work with my car? I think this is the only way I will get an official answer..

[ENDEE666]

Something else I don't think I mentioned, and can't get the affiliation, is why my ESP button doesn't work since this started... I thought ESP went through ABS modules, so I can't get why it would be affiliated with a bad suspension module...

Thoughts on that??

[durfA4]

I have a 2001 4z7 907 553 H module out my 2001 manual car, pm I can ship it on Monday.

[G0to60]

I do know that if there is any suspension fault the ESP will be disabled. Not sure why but I read that is what happens.

[ENDEE666]

I have a 2001 4z7 907 553 H module out my 2001 manual car, pm I can ship it on Monday.

PM sent!

[ENDEE666]

I do know that if there is any suspension fault the ESP will be disabled. Not sure why but I read that is what happens.

That's reassuring then.. I don't get the connection, but glad it's not something else. Only connection I see, beyond sharing a button panel, is that you can't adjust height while cornering, because of ESP. I read that in the SSP..

[ddillenger]

PM sent!

I would very much like to take a look at your dead module if you want to part with it. If I can repair it I'll send it back.

[ENDEE666]

Sure

[ENDEE666]

I have a 2001 4z7 907 553 H module out my 2001 manual car, pm I can ship it on Monday.

Paypal & PM sent! You are my hero!

http://bigpinekey.com/wp-content/uploads/an-hero1.gif

[ENDEE666]

MUCH THANKS TO DurfA4!!! He overnighted me an H module yesterday, came by 11:30am today. Plug & play, problem solved! It even cleared the code on its own!

Fully functional again. DDillenger, PM me your info and I will ship you the bad module.

[blkrhyno]

Glad to see that you got it all working again.

[durfA4]

Glad to see it fixed it.

[VJ's A6]

WAIT!! WHAT.. What happened to your car??

Or did you replace your work car with an Allroad..

[ENDEE666]

A6 is fine. Allroad just additional car.. Passat W8 wagon & XC70 will be sold soon.

[Racin2redline]

I'm having this exact problem to the T on my allroad. Even got the same code for the front right wheel height sensor. Looks like you did all the hard work for me. Thanks! Now I need to find a module...

Mine uses the 4z7 907 553 B part number.

[8520]

I have an E version I'll sell if anyone needs it.

[Racin2redline]

I have an E version I'll sell if anyone needs it.

Damn I don't think I can use that one? If someone can confirm ill definitely take it
My friend works at VW and can access AuDi Etka so I can try and cross reference

[ENDEE666]

You can't I don't think. At least from what I saw researching. 2001's can use a B or H module only. Tough to find, only 2001 used them.

[Racin2redline]

You can't I don't think. At least from what I saw researching. 2001's can use a B or H module only. Tough to find, only 2001 used them.

Yeah that's what I've been reading too. I really wonder what the difference is...just that 2001 uses the H and B

Well if someone has an H or B I'll take it !

[ENDEE666]

I think different speed adjustment settings.

[Racin2redline]

I think different speed adjustment settings.

Has anyone tried to use an E or relevant controller in place of the H.. Or will I be an expensive guinea pig...

Ooh and the H and B have manual mode! I forgot thats also a major difference. I wonder if that's just programming? And.. manual mode would just be disabled with a newer controller. I gotta figure this out soon i can't have the AR incapacitated

[bagpipingandy]

Try removing the ecu and place in a warm place for the night then plug it back in, its a long shot but may just make it work for a short while, to get you level again.

regards

andy

[Racin2redline]

Thanks I'll give it a shot, Already put the car in a warm garage for a few days now. When I think about I forgot I have no n75 valve in right now because I have a vac leak to a wastegate. Under load the ecu disables the air susp. ESP and ABS so the consistent on off may have killed it?

[8520]

According to this post, an E version should work fine.

http://forums.audiworld.com/showthread.php?t=2842343

Here's the only one I could find on ebay.

http://www.ebay.com/itm/02-03-04-05-AUDI-ALLROAD-SUSPENSION-SELF-LEVELING-CONTROL-MODULE-4Z7907553E-/151164147690?pt=Motors_Car_Truck_Parts_Accessories&hash=item233215d7ea&vxp=mtr

Got your Pm. 175 shipped?

[Racin2redline]

I'm going To call the dealer to cross reference now.. Hmm I may risk it then. Honestly 8520 that's a great price, much appreciated but I already called autohaas in nj and since I just ordered a bunch of stuff through them there willing to sell me another E version for only 160 shipped with a 6 month warrantee.. I can't turn down the warrantee :/ I appreciate all the help

[Racin2redline]

I just talked to the dealer . My friend said that the only superseding part number for the B is H and according to ETKA the E part number isn't compatible. He said the person who swapped a B for the E could of got lucky with a later VIN code car closer to the change (between H To E) and there would be no way of knowing if it would work in my particular car..

[bagpipingandy]

I found someone who has repaired a B & H module he is looking for someone to try it, pm me your email and i will put you in touch with him, worth a shot

regards

andy

[ddillenger]

I can see no visible damage in ENDEE's unit at all.

[digitalhippie]

I found someone who has repaired a B & H module he is looking for someone to try it, pm me your email and i will put you in touch with him, worth a shot

regards

andy



That'd be me.

I just replaced a B module in my 01 Allroad, and decided to dig into the "bad" module I removed. I found the two large radial can capacitors had domed tops (should be flat) and one broke through the vent. Further research showed these capacitors to be rated for 1000 hours of use. It's easy to see how you could exceed 1000 hours quickly if your pump is running long due to a leak or worn piston ring. I replaced the capacitors in question with similar capacitors rated for 5000 hours of use.

I haven't tested it because I have a busted shoulder (from a car accident 2 mos ago) and the weather here sucks. Racin2redline - I'd be willing to send you the repaired module if you want to try it out. Just ask that you pay shipping. If it works... you can send me your old module and $25. If it doesn't work... you can throw it in the trash.

[Racin2redline]

That'd be me.

I just replaced a B module in my 01 Allroad, and decided to dig into the "bad" module I removed. I found the two large radial can capacitors had domed tops (should be flat) and one broke through the vent. Further research showed these capacitors to be rated for 1000 hours of use. It's easy to see how you could exceed 1000 hours quickly if your pump is running long due to a leak or worn piston ring. I replaced the capacitors in question with similar capacitors rated for 5000 hours of use.

I haven't tested it because I have a busted shoulder (from a car accident 2 mos ago) and the weather here sucks. Racin2redline - I'd be willing to send you the repaired module if you want to try it out. Just ask that you pay shipping. If it works... you can send me your old module and $25. If it doesn't work... you can throw it in the trash.

Pmed ! Interesting I'll give it a shot. I hope I works for everyone's sake. Makes no sense that no one repairs these ?

[Racin2redline]

I can see no visible damage in ENDEE's unit at all.

Kind of irrelevant but on the TT fourms there was a discussion about a Chinese eBay tool used to reset the "death" code on the airbag module. A few ppl had good results. No one seems to know what it does but it turns the light off...obviously the air suspension is a little more advanced than a airbag but maybe that tool does reset something ?

[digitalhippie]

Kind of irrelevant but on the TT fourms there was a discussion about a Chinese eBay tool used to reset the "death" code on the airbag module. A few ppl had good results. No one seems to know what it does but it turns the light off...obviously the air suspension is a little more advanced than a airbag but maybe that tool does reset something ?


The airbag fault is a totally different issue from my understanding. Same code, different cause.

[Racin2redline]

Just swapped the controller with digital hippies .. No luck I still have the 65535 code and
07169 front right vehicle height sensor 57-00 electrical circuit failure

I still don't hear my compressor kicking on at all although I'm not sure if it should. I removed both controllers and I put them in my lizard cage :) that should keep them warm and dry. I'm going to cross my fingers and try both tomorrow again. I'm not sure if I should try finding another controller or try replacing something like the compressor or that front wheel sensor?

Also the Plastic cage that held the controller was cracked at the bottom.. I had the car loaded with stuff from last weekend it's not impossible something hit that panel thus the controller...

[digitalhippie]

Make sure you go to address 34 with VCDS and CLEAR CODES, see if that helps. The controller I repaired had those codes stored before the repair. It hasn't been plugged in since.

The codes you're getting are definitely for a bad control module, don't spend money on anything else yet. Also, I was able to rebuild my front level sensors (no codes since). I can give you some pointers if you want.

[Racin2redline]

I'm thinking that's the next thing to tackle. In getting no reading at all from FRONT sensor 2 so I'm assuming it died. Even so that's wouldn't cause a memory error?

Is there anything I can Check with vag com?
Also found some reading info.
http://www.volkspage.net/technik/ssp/ssp/SSP_243.pdf

http://www.volkspage.net/technik/ssp/ssp/SSP_242.pdf

[ENDEE666]

Check the plug for the sensor out. I was having an occasional issue with my front right sensor. A few times the pins had green corrosion on them. The thought crossed my mind that that may have been what shorted my module, but no idea what caused it. I cleaned mine off good with contact/sensor cleaner. Then sealed it up a bit better to protect water from getting into it.. Been ok for a few weeks since.

You can find used sensors for like $40-50 on ebay.

[Racin2redline]

I also noticed with vag com that terminal 50 is consistently off no matter what the position of the key if the cars running or not.

[Racin2redline]

Ok I've read the self study programme a few times over, and it discusses the "strategies" for the air suspension control and how the a module differs from the B module. At one point they mention that they are planning on producing a common control module for all countries.. Could that have been the E module ?

I don't see how the hardware could have been changed (for the air suspension) since the car was only produced for >5 years.

[Racin2redline]

I'm talking to myself...I pulled the height level sensor out. It was pretty corroded I'm going to attempt to rebuild it to get a reading out if it

I may just buy an E module and hope it works

[Racin2redline]

Inside of the plug is all corroded that's ...the problem
http://img.tapatalk.com/d/14/02/26/uze3e7y4.jpg

And a shot of Paul would so kindly let me use her lights
http://img.tapatalk.com/d/14/02/26/jyvubupy.jpg

Here's some pictures of the inside of the vehicle height sensor. Simple design really lol.

http://img.tapatalk.com/d/14/02/26/9ysesyhu.jpg
Backside
http://img.tapatalk.com/d/14/02/26/eny2yba7.jpg

Front side that you see after you take the plastic cover off http://img.tapatalk.com/d/14/02/26/4arahe4e.jpg
Like digitalhippie said the contacts are not soldered in place

[ENDEE666]

If you still need an 01 Module, there is one in classifieds. Not mine, and I do not know the seller, but-

http://www.audizine.com/classifieds/showproduct.php?product=104518&title=allroad-suspension-module&cat=41

[Racin2redline]

Thanks but , Actually I bought the E module off of 8520 ...I'm playing guinea pig unfortunately. Hoping it's plug and play. I don't see why it wouldn't be

[ENDEE666]

If you still need an 01 Module, there is one in classifieds. Not mine, and I do not know the seller, but-

http://www.audizine.com/classifieds/showproduct.php?product=104518&title=allroad-suspension-module&cat=41

[Racin2redline]

I just got the E module and plugged it in everything seems to be working correctly. I'm plugging in VCDS now. I still have a code for front right electric circuit failure. So happy right now

[ENDEE666]

That's interesting, and great news for you and future problems.. Curious if it takes on the E programming then, for auto-level etc.

[Racin2redline]

Comparing the two modules physically id say the E one almost looks better constructed. The B modules use almost like tinfoil around them as a ground. The E actually has a piece metal around it and a thicker ground bolt.

[ENDEE666]

Yeah the H module I got for mine seems more robust too. Had to work it to fit a bit since it was slightly bigger (phrasing) but seems to work really well.

[8520]

Comparing the two modules physically id say the E one almost looks better constructed. The B modules use almost like tinfoil around them as a ground. The E actually has a piece metal around it and a thicker ground bolt.

Glad it worked for you. Let us know how everything plays out.

[Racin2redline]

Glad it worked for you. Let us know how everything plays out.

Thanks! I will keep you guys posted. I'm going to get a new front height sensor because there cheap.. I have a feeling my problem is wiring though. Not sure how to clean out the inside of the connector... without sticking something in there (even with the battery disconnected)

Did you have the E module 402? When I plugged it in my car was almost tucking tire lol

[8520]

Ha ha. Mayybbbbbe 35mm

[Racin2redline]

Ha ha. Mayybbbbbe 35mm

Figured lol looks kinda funny lowered on all terrains

[ENDEE666]

Ha ha. Mayybbbbbe 35mm

Erroneous speculation....

[DCandDGK]

The module is interchangeable between all years. The only difference is the "manual" setting. One module allows manual setting and the other doesn't.

[Racin2redline]

The module is interchangeable between all years. The only difference is the "manual" setting. One module allows manual setting and the other doesn't.

Seems to be.

[V1nny]

The module is interchangeable between all years. The only difference is the "manual" setting. One module allows manual setting and the other doesn't.

Your statement seems to be contradictory, at least in case of 2001 Allroads that do have a manual setting. What going to happen if a newer module is installed in a 2001 allroad? Manual mode is no longer going to be available?

[Racin2redline]

Your statement seems to be contradictory, at least in case of 2001 Allroads that do have a manual setting. What going to happen if a newer module is installed in a 2001 allroad? Manual mode is no longer going to be available?

I installed a newer module in my 2001 allroad. I no longer have the manual mode. Everything else works fine.

E module can be used as a replacement for a B or H module. Know that for a fact. I do not know if it works backwards..but that is a highly unlikely circumstance.

[V1nny]

I installed a newer module in my 2001 allroad. I no longer have the manual mode. Everything else works fine.

E module can be used as a replacement for a B or H module. Know that for a fact. I do not know if it works backwards..but that is a highly unlikely circumstance.

Thank you for explaining. I would not want to lose manual mode, maybe as a temporary fix it's ok, but would be looking for older module. What would be the latest revision still supporting the manual mode?

[Racin2redline]

Thank you for explaining. I would not want to lose manual mode, maybe as a temporary fix it's ok, but would be looking for older module. What would be the latest revision still supporting the manual mode?

That would be an H module. Honestly there really hard to find and 2x as expensive as the E module. Manual mode is a really useless concept. I won't miss it.

Also I have reason to believe that the E and H modules are more reliable than the B. There seems to be less failures with the newer modules.

[jcharlesmorris]

I'm posting in this thread to confirm whether or not the "E" module will replace the "B" or "H" module. I have been getting these VAGCOM codes:

65535 - Internal Control Module Memory Error
08 -00 - Control Limit Surpassed

That coupled with:

01772 - Signal From Level Control Pressure Sensor (G291)
27-10 - Implausible Signal - Intermittent

01399 - Relay for Level Control Compressor (J403)
28-10 - Short to Plus - Intermittent

I've replaced both front spring with Arnot Gen 2's and the G291 solenoid valve. I noticed that the front right would get out of sync with the front left and become unable to release air. Air goes in fine but it will not let air out. I checked the height values for the front right and they seem to be reporting correctly so I don't think it's a sensor.

I just ordered a "E" module. I'll let you all know in a week or two whether or not it works. If so, this will be 2 people that can confirm that this module will work in place of a "B" or "H" module.

Thanks to bagpipeinandy for all the help. His compressor rebuild kit is solid and worth the spend. http://www.bagpipingandy.com

I also plan on recording the deconstruction of the rear panel and posting a "how to" on getting the module out.

[DCandDGK]

Your statement seems to be contradictory, at least in case of 2001 Allroads that do have a manual setting. What going to happen if a newer module is installed in a 2001 allroad? Manual mode is no longer going to be available?

Exactly.

[Racin2redline]

I'm posting in this thread to confirm whether or not the "E" module will replace the "B" or "H" module. I have been getting these VAGCOM codes:

65535 - Internal Control Module Memory Error
08 -00 - Control Limit Surpassed

That coupled with:

01772 - Signal From Level Control Pressure Sensor (G291)
27-10 - Implausible Signal - Intermittent

01399 - Relay for Level Control Compressor (J403)
28-10 - Short to Plus - Intermittent

I've replaced both front spring with Arnot Gen 2's and the G291 solenoid valve. I noticed that the front right would get out of sync with the front left and become unable to release air. Air goes in fine but it will not let air out. I checked the height values for the front right and they seem to be reporting correctly so I don't think it's a sensor.

I just ordered a "E" module. I'll let you all know in a week or two whether or not it works. If so, this will be 2 people that can confirm that this module will work in place of a "B" or "H" module.

Thanks to bagpipeinandy for all the help. His compressor rebuild kit is solid and worth the spend. http://www.bagpipingandy.com

I also plan on recording the deconstruction of the rear panel and posting a "how to" on getting the module out.

You shouldn't have any issues. I also have some pictures of how I disassembled the rear trim. It was pretty straight foward.
I removed the floor pan and the aluminum trim along the base of the trunk where the striker is. That allows you to swing the panel out after you pop the clips out.... Pictures will make more sense I'll post some soon

[jcharlesmorris]

I can confirm that the "E" module will work with a 2001. You lose manual suspension mode but I'm with Racin2redline. It's pretty much a useless concept.

Although I was able to get the "E" module to level and it seems to be working as it should, I think I still have the problem that I had before I swapped it out. I also think the "B" module I have is brand new and the previous owner of the car was battling this issue with a mechanic and kept throwing money at the problem. I wish he would have been honest with me when I bought it and let me know the symptom so I didn't spend the better part of a year troubleshooting and swapping out parts.

The existing problem:

The front right and rear right corners let air in but do not seem to let air out at the same rate as the left side. This results in the left and right side getting what I term "out of sync" and start throwing the "Vehicle Extremely Un-level" code. Which I think happens because after about 3 or 4 days after I level the car, the corners get more than 10mm off from each other and it starts throwing the "Implausible Signal" code. Here is what I have done thus far:

1. Replaced Solenoid Valve G291
2. Replaced/Upgraded 2 front Air Spring to Arnott Gen II (love them btw)
3. Rebuilt compressor using bagpipnandy's kit.

I am now thinking that the issue is the 10 pin connector that connects the internal control module with the G291 solenoid. I'm posting this in this thread for 2 reasons. The first is because it is the most current thread on the subject of the Control Module, the second because I'm hoping that someone has faced this issue and can give me confirmation on the issue and possibly an easy clue on how to resolve it.

[Racin2redline]

Have you tried leveling the car with vag com to recalibrate the heights

[jcharlesmorris]

Have you tried leveling the car with vag com to recalibrate the heights

Yes. I am able to level the car IF and only IF I deflate the right front and rear so that it is lower in height than the left. If I get the right higher than the left and try to increase the left front corner for example, the front right corner will end up higher than the left in equal parts.

For example let's say the right front corner is 5mm higher than the left front. If I increase the left front corner by 5mm by entering 387. The left front will increase by 5mm. However, the front right corner will also increase by 5mm keeping the difference between the left and right the same.

Kind of a weird issue, I know. I've successfully leveled the car a dozen times or more. But after about 4 days it becomes unlevel and each time the left side adds air the right increases in height. Until the right side gets to be about 450 mm. Then I have been jacking the car up, removing air and leveling again. Its become a Friday afternoon ritual. To be honest, if rather replace that ritual with a round of golf or a surf session.

[ENDEE666]

I think it might be a different issue then. Like the release valves. They could be going bad or possibly getting stuck. Or a clog in the extremely small lines. Or a height sensor.

You had this same issue with the old module?

Check the suspension measuring blocks in Vag Com and see what the module & sensors *think* each corner is at when the various criteria you have happens. If it is raising but the measuring blocks say it's still level, it's electronics somewhere. Either way, the meas blocks should shed some light..

[jcharlesmorris]

I think it might be a different issue then. Like the release valves. They could be going bad or possibly getting stuck. Or a clog in the extremely small lines. Or a height sensor.

You had this same issue with the old module?

Check the suspension measuring blocks in Vag Com and see what the module & sensors *think* each corner is at when the various criteria you have happens. If it is raising but the measuring blocks say it's still level, it's electronics somewhere. Either way, the meas blocks should shed some light..

Thanks for the insight. Here is what I know.

1. I replaced the G291 Solenoid with a brand new OEM unit roughly 6 months ago. Is this the "release valves" you are referring to? Or is that something that I need to check?
2. When I run the system test the front left and rear left release air just fine. The front right does not release any air and the rear right seems to kind of let air out. The left side air release is audible and I can visually see the corners lowering.
3. When I go into measuring blocks to view what the sensors are reporting, I do see huge differences in values when I go through the 4 different height settings.

Level 2:

Height Front 1: 1.0 mm
Height Front 2: -2.0mm
Height Rear 1: -3.0mm
Height Rear 2: 1.mm

The above reading is immediately after I have "Leveled" the vehicle back to 402 by entering the current values when going through the calibration process.

The following are the readings I receive by going through each height to see if the values are adjusting evenly or at all. This is what I found.

Level 1

Height Front 1: -33.0mm
Height Front 2: -20.0mm
Height Rear 1: -33.0mm
Height Rear 2: -15.mm

Level 3

Height Front 1: 23.0 mm
Height Front 2: 16.0mm
Height Rear 1: 24.0mm
Height Rear 2: 22.0mm

Level 4

Height Front 1: 44.0 mm
Height Front 2: 33.0 mm
Height Rear 1: 40.0 mm
Height Rear 2: 37.0 mm


It appears that the corners do let air out, but what I can't figure out is why the corners aren't releasing air evenly.

Any feedback is appreciated.