2002 z06. I had the message service colum lock. It was done by a dealer ubder a recall i belive 2004. The message came up about two weeks ago. I put the lmc5 in. It got rid of the message. But now i get pull key, wait 10 seconds message.i do that and it clears it but if the car sits for awile it comes back. The car also has a new battery. Car has 8k miles on it. Thanks for any help. Joe

 

That could be a security problem, and not a column lock problem.
Might try cleaning the resistor on ignition key, and may need to check ignition switch.

You might also want to check under the steering column to remove any other column lock bypass devices that may have been installed.

 

The LMC5 takes anything under the steering column out of the issue. Do you have a backup key you can try?

 

I DID TRY THE BACKUP KEY NEVER USED. SEEMS TO BE FINE RIGHT NOW. I HOPE THAT IS THE FIX. THANKS JOE IT STILL GOES TO THAT FORMAT. THIGHT WE HAD IT. JOE

 

thanks will do it monday and give you the results. Joe

 

I had the same problem with my 01 Cp M6 - they have a 5 wire that is specificaly for M6 cars with this problem...it worked for me

 

Why don't vendors just build the version that will work on all cars and not put the owner through this?

 

Hi all. Understandable question. Believe me, we're trying to make column lock fixes as painless as possible for every single owner.

Short answer - The generic Pull Key and Service Column Lock messages don't tell you what's actually failed and caused the problem. In addition to the more common column lock failures in the system outside of the BCM, we've identified a few specific ways the BCM's internal column lock circuit and components can fail, and over twice as many different BCM firmware variations and timing or signal glitches. We have data on a couple thousand BCMs - including part numbers, dates, C5 year/trans, recall version(s), column lock failure(s), etc. - and there's no definitive correlation with the above issues and any given BCM or C5.

We designed the LMC5 to interpret and compensate for nearly all of these issues - we're at about a 99.5% success rate. For that last half a percent, we've found that simply identifying what problem still pops up, gives us enough info to know which of our alternate designs will eliminate a lingering Pull Key message, etc., without testing each BCM or recommending BCM replacement. So, nearly every one of these C5s with an extra problematic BCM should only have the temporary irritation of watching for a Pull Key message until we can clear it up. BCMs do go bad beyond what we can compensate for (especially when they get wet!), but we've only recommended BCM replacement in less than 15 of the last 15k+ LMC5 installs, so it's pretty rare.

Think about it this way. If you get a flat and change your tire, boom, problem solved. With the column lock system, once you install an LMC5, you eliminate the lock motor, wiring, column lock relay, most BCM issues, and therefore fix the vast majority of column lock failures. BUT, you still have to deal with the BCM and its internal aging/failing components, programming glitches, etc. In a small number of C5s, these problems are so far out of the normal range, that it takes extra tweaking on our part to get rid of them. And, since the problems have different root causes, it takes a couple of different module designs to fully address them.

For anyone wanting a longer and more technical answer, we'll start an appropriate thread as soon as we can, which will hopefully answer any questions or concerns, without hijacking anyone else's thread.

If anyone has ANY problems after installing an LMC5, let us know and we WILL help! We don't get to the forum as often as we'd like, so email is fastest - info@complianceparts.com

Thanks!! Richard

 

Richard of complanceparts sent me a four wire unit and replaced the three wire one and it worked fine no more problems. He is great to deal with and the part does the job. Highly recommended companY. Joe

 

Lmc5 is a great fix