wrenchman30 said:
per the ebahn website and the key programming insturctions the m5 has to have the ecm set to number of keys 1,2,3,4 then you program the keys by turning in ignition (immoblizer light flashes bells horn honks) something of the sort. can the vag com program edit this ecm function.
Please post up the instructions you are quoting. Sounds like they are using the term "ecm" to reference any electronic control module, rather than just the engine control module.
You need to tell the Immobilzer's ecm how many keys you want to program. Then the Immo light in the cluster comes for two seconds for each key you put in the ignition and turn ignition on, then goes out. For the last key the Immo light flashes a couple times then goes out. You have between 30 seconds and a couple minutes depending on Immo generation to complete this task.
The problem we all have is you need to log in to alow this programing sequence to start. And that is the part you hear about people cannot get their SKC, 4 digit PIN, 7 digit PIN, etc. from the dealer. You need that code.
fricker3 said:
Remote part works that is not the problem. It is the immobilizer chip that I cannot seem to get the car to memorize. I took it down to the locksmith today (he cut the key for me and has been very helpful). He put all my keys in a reader and was able to read a valid immobilizer from each key, even the ebay keys.
Then he tried to match them to my car and he had no luck either. Even with another "AM" key that he sells.
My plan is to code the original keys only. Then clear all fault codes, because the airbag light seems to be on now. Disconnect the battery for a half hour and start from scratch (try to code one of these ebay keys).
Eric
It's not only that the key is an Immo key, but that it is the correct generation of key. Also, I have run into some problems with keys that once programed to one car, won't program to any other cars. Most of the keys people bring me from eBay are new key blades on old key bodies. It's possible you have a key like this.
And if he just tried the same key as the one you brought to him, then it won't program either. Bright side is you don't have to waste the key cutting - you can take the blade off yours and put it on which ever key body you get to program.
Last thing, leaving the battery disconnected doesn't usually help. Most of the time it causes more problems than it solves. And with most of the security type systems on these cars the procedures to clear or make them happy is key on engine off for an hour or two. I'd suggest a battery charger. Only time I've seen leaving the battery disconnected work was when the car sat for over a week disconnected.
Bright side is I live up in Gainesville and can help you on a weekend if you want. Just drop me a line a day or so in advance so I can get some stuff together. It'll give me an excuse to go for a drive and explore.
Jason
