Column Lock Bypass (CLB)
Got stranded with this issue and had to tie car home. After looking at forum I disconnected battery a couple of times and finally got it to release. However, I can only hope doesn't lock again before I get it to mechanic. I am not mechanically handy, so could I install instead of mechanic. Cheers
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.
Also the 1999 and later C5's have a column lock relay that can be unplugged or else it will be powered and could fail and drain the battery. The LMC5 written guidance provides this info. This relay is above the BCM.
They also have a great install video in their eBay ads you need to watch.
Compliance Parts website: http://complianceparts.com/index.html
Mr. Sam





The LMC5 is the wise choice for curing the column lock problem.
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It's a mechanical issue where the lock motor plunger gets stuck. With the ignition OFF I would grab the wheel at the 9 and 3 o'clock positions, try to steer left and right real hard for a few seconds and then try to start it. You can try it with the ignition ON in case OFF does not work.
If that does not work you can go to the column and resolve it. Let us know if you need help to do that. It could be the motor is not getting power or ground to move and is just in the lock position. We could try and test for that or just jumper the motor and see.
If you get the column to unlock just make sure that while the ignition is ON and the CL is not locked, you pull that fuse so it is left "unarmed" and will not lock when you are done and move the steering wheel. Ask me how I know to do that.

Mr. Sam
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.
Also the 1999 and later C5's have a column lock relay that can be unplugged or else it will be powered and could fail and drain the battery. The LMC5 written guidance provides this info. This relay is above the BCM.
They also have a great install video in their eBay ads you need to watch.
Compliance Parts website: http://complianceparts.com/index.html
Mr. Sam
I got the service column lock message while driving the car a couple weeks ago , but the lock never engaged. I've been driving the car with the message on and no problem.
That said, I ordered the column lock bypass that plugs directly into the harness under the steering column and pulled the BCM fuse to reset the message. Works fine now, although I did notice my battery voltage is getting quite low with the car off or in the accessory mode. It could have been battery related, so getting the battery tested today as well.. but at least I'll never have to worry about it locking for 20 minutes worth of work and $40.






















