Big issue after canbus connector left unplugged.

[Dasquade]

Okey, my own fault :(. So i installed cete exhaust module in friends rs6. All good wired but sadely i wrongly connected the grey connector cap. It wasnt fully pressed in (with pink lock closed...but not how it should of been).
Didnt saw and fired up the car with multiple errors as a result. Luckly noticed my fault, inserted the grey cap correct and locked. Car starts etc but very very long error list especially sportdiff, brakes, steeringassistance....but offcourse linked modules aswell!
Managed to reset some but the main ones keep comming back :(.
Friend said the car needs to be driven to reset some...other with engine off. So far after sort trip no luck with obd eleven.

Tomorrow will go to other retrofit guy with vcds, not sure if that helps resetting things better.

Meanwhile anybody have ideas or solutions? Hoping it is just resetting issues and no other modules were fysicly damaged :(.

*kicking my own head...i know to never start car with canbus unconnected...but didnt noticed.

[bajan01]

Steering should clear after turning the steering wheel to full both ways to reset the limits.

[Dasquade]

Steering should clear after turning the steering wheel to full both ways to reset the limits.

Okey, thank already for that input!
For the record, atm i did disconnect both canbus h/l wires from the exhaust module just to make sure it isnt module related.

Before, i installed dynamic blinkers aswell. Worked but i hadn't fired up the car or scanned/errased those linked error so atm not sure if an issue on the blinkers or side assist is in play (dought it might but never know as the wires are pretty complex routed there when you put the covers back on but normally they should be free). Couldnt test side assist as that one was giving errors aswell in the list but guess it is linked though the other non resetted modules.

[VinnysS4]

Just use vcds to clear all the codes that it is throwing. Restart. Check to see if any of the codes come back. If they do you, go into each module and either clear the codes or perform an adaptation.

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[morski]

What codes are repeatedly coming back?

[Dasquade]

Mainly the brake module and the sportdiff (all wheel) module.
With obd eleven i did both the global erase and the individual erase function.
Italian friend just told me the sportdiff needs to be driven so it can self learn and resets itself....not sure how many miles/kilometers before that fixes itself.
Tomorrow we will check with vcds, that might gives a more accurate error codes or safer to do adaptations.
*rought error codes....
Airbag module: multiple colllision brake fault code B13BCF2 active
Gateway: Lost comm with ECM/PCM "B' fault code U011500 active
Sport diff: Multiple lost comm due to received malfuntion fault codes U111300
etc...i know it is better to post full scan report but will do with vcds.

[morski]

Yep a vcds scan would be better. Check the 3B sensor electronics as its easy to lose it calibration and very easy to readapt it. Causes multiple errors elsewhere. I dont think theres anything major gone wrong just matter of readapting module sin order and clearing fault codes

[karlito]

So I had this issue. Not the same root cause, but I disconnected the can bus when the car was technically still in accessory mode and it cause every fault to pop up with some staying consistent. Wouldn't clear with obdeleven. Ended up taking it to dealer, turns out it lost the "basic settings" somehow for the steering. Not even sure what all that meant but the steering and brakes were the 2 most persistent faults. When you looked at the steering angle it was reading 0, but I believe there is a setting somewhere in central electronics that also shows the steering angle and it was reading fine. Dealer reset the basic settings and adaptations and it was good to go. Hopefully this helps somewhat.

[infinitereality]

Mainly the brake module and the sportdiff (all wheel) module.
With obd eleven i did both the global erase and the individual erase function.
Italian friend just told me the sportdiff needs to be driven so it can self learn and resets itself....not sure how many miles/kilometers before that fixes itself.
Tomorrow we will check with vcds, that might gives a more accurate error codes or safer to do adaptations.
*rought error codes....
Airbag module: multiple colllision brake fault code B13BCF2 active
Gateway: Lost comm with ECM/PCM "B' fault code U011500 active
Sport diff: Multiple lost comm due to received malfuntion fault codes U111300
etc...i know it is better to post full scan report but will do with vcds.

I had the sport diff fault pop up after replacing all 8 front control arms. not sure how or why it faulted, but after 3-4 days of driving (couple hundred miles) it went away. Happened to go away after filling the car back up with gas. May have just been a coincidence, but either way I can confirm it does go away.

[Dasquade]

I ended up going to dealer after friend also wasn't able to synchronise and calibrate the steering. Audi did use i slight different procedure but they were quickly able to fix the steering angle....all the rest of the codes got erased after the steering fix :).
Luckly free of charge and a big leasson learned :p.
Thanks all for the help!

[DiamondZ]

Steering should clear after turning the steering wheel to full both ways to reset the limits.

Yep. I went through this already after installing the Cete Air Suspension Controller. You didn't seat the can-bus controller all the way back in properly, and tried to crank it up. I took it to the dealer, I told them it just happened on its ow, and they said it was a dying battery that caused it. I sent the $600 bill to the Audi dealership that sold me the car, and they sent a check. Less then 2000 miles on the car, so I was FREAKING out! Here's the fix: After you clear what you can, the faults left will all stem from steering basic settings. Use Vag-Com, OBD eleven, or what you like, and reset the steering basic settings and the faults will all go away. It's pretty sweet when they all just go away.

Here's a link: http://wiki.ross-tech.com/wiki/index...el_Electronics

you should be okay after that, and your car will drive funny with the faults.

Gateway: Lost comm with ECM/PCM "B' fault code U011500 active: This fault has never cleared after installing the Cete controllers for valve and air suspension

[Dasquade]

Well strange enough my friend how i pretty know with vcds/vas tried it with no luck, then local garage tried it also with no luck (told it tend to be a hit or miss thingy sometimes). Like posted in the end, dealer fixed it 'for me' (free as the friend helps the dealer and visa versa so a goodwill thingy).

I haven't went to the car and scan it.

On my car i have both the valve and suspension module since they came out, never had an issue with the gateway error (but had installed the canbus correctly back then and on an other friends car where i installed the suspension module only).
Will report back if the car still has that gateway error. It didn't had before m canbus mistake, had it after, not sure now. Maybe it needs an adaptation aswell?

[morski]

Live and learn. Not an expensive mistake but definitely 'sh!t' your pants moment especially when its not your car.

[DiamondZ]

Yeah, I have both as well, just t-tapped into one and plugged in the other. I don't know if that's what caused it, but I'm glad you got it resolved.

- - - Updated - - -

Live and learn. Not an expensive mistake but definitely 'sh!t' your pants moment especially when its not your car.

You got that right. Lol

[rqgunn12]

Yep. I went through this already after installing the Cete Air Suspension Controller. You didn't seat the can-bus controller all the way back in properly, and tried to crank it up. I took it to the dealer, I told them it just happened on its ow, and they said it was a dying battery that caused it. I sent the $600 bill to the Audi dealership that sold me the car, and they sent a check. Less then 2000 miles on the car, so I was FREAKING out! Here's the fix: After you clear what you can, the faults left will all stem from steering basic settings. Use Vag-Com, OBD eleven, or what you like, and reset the steering basic settings and the faults will all go away. It's pretty sweet when they all just go away.

Here's a link: http://wiki.ross-tech.com/wiki/index...el_Electronics

you should be okay after that, and your car will drive funny with the faults.

Gateway: Lost comm with ECM/PCM "B' fault code U011500 active: This fault has never cleared after installing the Cete controllers for valve and air suspension

Yeah I went thru this with my air susp. Controller. Shop I took it to hooked it all up, one (black end, two wire) connector was not plugged in. The canbus wires were plugged in, but the canbus itself was not seated back into its clip. It also was not connected to my phones app yet. They fired on the car and lights went a blaze on the dash. Took it out, went to dealer they recalibrated all the “faulting” modules and now car is back to normal but no air module in


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[kanahoot]

Literally just did this Exact thing with the canbus. Car wouldn't start, rechecked everything and reseated the canbus. Car started and threw every code in the book.

Tried to clear codes with vcds, no luck. Tried to clear codes individually per module, no luck. Everything came back immediately.

Car is at the dealership, techs have been working on it since yesterday and they can't figure it out.

Ahhhhh freaking out .

[bajan01]

Literally just did this Exact thing with the canbus. Car wouldn't start, rechecked everything and reseated the canbus. Car started and threw every code in the book.

Tried to clear codes with vcds, no luck. Tried to clear codes individually per module, no luck. Everything came back immediately.

Car is at the dealership, techs have been working on it since yesterday and they can't figure it out.

Ahhhhh freaking out .

I thought that this post sounded familiar. Perhaps one of the pins got bent.

[kanahoot]

I thought that this post sounded familiar. Perhaps one of the pins got bent.

Yes that's what I'm hoping as well. Finger crossed

[kanahoot]

Is it possible that I shorted out the canbus and that needs to be replaced?

[eMiL-R]

Sitting in the same boat. Whats the solution?