The ORIGINAL column lock bypass module?





I consider the LMC5 to be the best Column Lock problem permanent fix out there. It also does not require you to “undo” any previous CL attempts to resolve this issue. Their eBay ads have a good video that shows the install at the BCM. It does not cover everything in the written instructions. So, read the instructions and also here is some extra info. In some cases, the BCM timing is off just enough to cause some issues. They make several versions and they can swap out/provide one of these if you have any issues. Their customer support is as good as it gets.
Not uncommon for people to "put the column in a pre-lock condition" and not know it and then start with the install. In other words, they started with the column lock “energized’ even if it was not actually locked yet. If not actually locked yet, it will be as soon as you turn the steering wheel after the LMC5 install. It will then remain in the locked condition until you cause the motor to unlock. It will then remain in the unlocked condition since the motor is then unpowered with the circuits disconnected.
Here is one way to prevent that if your column locks and unlocks normally:
If the CL is functioning normally you don't not need the Unlocker, merely turn the ignition ON, pull fuse #23 in the I/P fuse box, turn ignition OFF, turn the steering wheel (left and right) and verify it is unlocked. Next, disconnect the negative battery terminal, re-insert fuse #23 and continue with the install.
Compliance Parts website: http://complianceparts.com/index.html





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Last edited by bobby777; Jun 21, 2015 at 11:43 AM.






to each his own





https://www.corvetteforum.com/forums...post1589882012
all I know is so many people get upset with my affinity for a product that works and doesn't require mods and phone calls and videos
I even got a message from the vendor...its like I can't express my opinion
Real answer is IT DEPENDS.
There were numerous variations of fixes from GM. Some before the "official" NHTSA recall issued in Jan 2004 and some after. Some were for early year cars that did not have a Column Lock Relay, some were for 99 and 2000 which came with a 4 pin Column Lock relay, some were for Automatics made between 97 and 2000, some were for manual trans cars from 2001 - 2004 that came with the 5 pin Column Lock relay, some were for cars that had GM fixes applied before the "Official" recall and the list goes on. Add to that mess the ability of the tech attempting any one variation of GM "fix" to understand what they were supposed to actually do or undo before the"fix" at hand was applied. Then add some attempt of a car owner fed up with GM's fixes that didn't work so they jacked around with the wiring themselves.
That's why it can be difficult at best to install a CLB and have it work right the first time and then always work going forward. Pewter99 was one of the lucky ones where the install was apparently easy and worked first and every time. The individual in the link I provide in Post # 10 above was not as has been the case with numerous other members that attempted to install a CLB. The biggest issue I have with the CLB is that numerous vendors install them but call them up looking for assistance when your install does not work and see what you get. Do that with the LMC5 and you will even get help from the vendor on the weekends or holidays.....
I don't have an LMC5 installed so I have no vested interest in it. I do have a CLB installed and it does work but I also had the recall 2mph fuel shutoff changed to 255 so I won't ever run into that issue should something happen with the CLB or other factory or recall wiring or Column Lock components.
Last edited by bobby777; Jun 21, 2015 at 04:22 PM.

K Harness if left in place would be between the BCM (brains for running the column lock function) and the CLB. When the K Harness fails the CLB doesn't get BCM signals to function with......
Good luck going forward.













