gl450x164

My visit workshop airmatic light just came on... I have tested everything with my star scanner and everything has been tested to be working. My issue is stemming from a can communication issue that I cant diagnose as I'm not familiar at all with how that communication system works. I'd really appreciate any input anyone may have

alx

..... Aaaaaaaand your codes are?

gl450x164

The code related to failed can communication is ic I also get call error 700.2142

alx

i dont understand. are you getting diagnostic codes or star/das comm errors?

a screenshot might be useful here along with what leads to it

gl450x164

alx

It could be a corrupt star/ das installation.

Try to read airmatic unit in another Mercedes with airmatic. Or try another install of das.

What happens if you do a quick test of all modules?

Alternatively you can pay the dealer for 1 hour of diag time so they tell you what it is. You either have a bad star/ das or your airmatic controller is dead/ can bus is damaged.

gl450x164

Airmatic control module is new myvstar works perfectly well have tried it on various benz..... How would one go about fixing the can bus

gl450x164

It does the quick test just fine. I can manually adjust everything there is just something causing interference with he can bus

alx

"diagnostic system data sectors are incomplete or faulty"

I believe you have a star/das/mux issue

gl450x164

Hmmm not sure. My button to raise the vehicle doesn't work and I have used it in a different mbz and checking out the airmatic system without issue on a couple different ones actually

clvincent

i know this is out in left field but on my 06 CDI i was having some weird problems that were hard to duplicate etc
mercedes determined i had too much stuff plugged into my charge ports, was running ipad charger, phone charger, radar detector etc etc on 1 port with extended plugs

the main thing we were finding was several can communication errors....

do you have anything new plugged into the charge or cig lighter ports?

alx

Low main battery voltage is what you refer to. It is a cause for can errors. He needs to attach a battery tender to main battery and see if he still gets errors.

But i still believe he has star/das setup issue. I also do believe he has some airmatic issues as he does have an error on dash, but the misconfiguration is preventing him from troubleshooting correctly. That particular error is typical if you use a c4 mux on a c3 install or if you have chosen the wrong vehicle type in star/das.

gl450x164

Well I actually just installed a new battery which was after the airmatic visit workshop light came on. I only run one plug which is for my charger for the phone. And as far as user error we can scratch that also I've been using this for three years and the build for this was made for a c3 system which is what I have

alx

When you perform a quick scan what does the airmatic module comes back with? Ok, f or F?

gl450x164

Lower case f

gl450x164

I have 5150 5160 5170 5130 and 5350 fault codes listed now

gl450x164

Bump

gl450x164

I have noticed the the xenon auto level and cornor illumination isn't working like it use to before. Is that system connected to the airmatic system

gl450x164

Have replaced the compressor and still have the msg. Have tried another module with no success. Ive had it diagnosed at an indy who just did my balance gear replacement and he couldn't figure it out

gl450x164

Im have the same issue with my gl450. I believe its due to a canbus communication issue. My compressor is new aswell as all four airbags and relays and fuses. Have a c3 system.

clvincent

that sucks

hope you get it figured out

please keep us up to date

fireman1073

ask your questions at *******.com
very good stuff there, and smart tech people too

gl450x164

Well i have finally figured out after tracing electrical faults. I had no power to plug 2 pin 43 traced it back to power failure of f4kn relay. Popped a new one in boom system came back life

clvincent

good for you, this has been a complicated one

glad your truck is fixed

dddm

Thank you! Had the same issue, Airmatic working exactly 60 second after key on, and after that’s no communication. Your work saved to me hours of troubleshouting.