Steering Column Lock
The MOST likely cause of your symptoms is a weak or bad battery or loose or corroded battery cables including the one at the starter. Sometimes you can get around the locked column by charging the battery. NOT always. Only permanent solution to the column lock symptoms is an LMC5.

You need to Google "Compliance Parts" and then go to their web site and read about the LMC5.
Order and install the LMC5 but keep the install instructions in the glove box just in case that down the road you get the "Pull Key...." message after the LMC5 install and need to do the "brown wire mod" on page 2 of the instructions.
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
Is there any way to get it back and Unlocked until I can Order a LMC5 Module from California? Can the Dealer do anything to correct this? Of course I'll have to have it towed to there Place...... 1st time in 14 years my C5 let me down... I am just sick..
Thanks in advance for any help....
Is there any way to get it back and Unlocked until I can Order a LMC5 Module from California? Can the Dealer do anything to correct this? Of course I'll have to have it towed to there Place...... 1st time in 14 years my C5 let me down... I am just sick..
Thanks in advance for any help....
Is there any way to get it back and Unlocked until I can Order a LMC5 Module from California? YES
Sometimes; turn the ignition OFF and REMOVE the key. Shock your lock motor actuator assembly by jerking the steering wheel against the stops. Re-insert your key and try again. Also, if your battery voltage is low, charge your battery or replace it.
Can the Dealer do anything to correct this? NO
Of course I'll have to have it towed to there Place...... DO NOT DO THAT! 1st time in 14 years my C5 let me down... I am just sick..
Thanks in advance for any help....
The Dealership will be expensive and they will NOT fix the issue UNLESS they will install the LMC5 for you... some will, some won't.
IF you have it towed to a Dealership... INSIST they use the LMC5 unlocker and LMC5 module to FIX your car...
Here is one way to unlock
https://www.corvetteforum.com/forums...-no-tools.html
Last edited by 73Corvette; Sep 7, 2015 at 10:13 AM.
Is there any way to get it back and Unlocked until I can Order a LMC5 Module from California? Can the Dealer do anything to correct this? Of course I'll have to have it towed to there Place...... 1st time in 14 years my C5 let me down... I am just sick..
Thanks in advance for any help....
The reason I ask is I've never seen it posted as a possible temporary solution...
Last edited by 73Corvette; Sep 7, 2015 at 10:19 AM.
Of course there are a lot of things I do that I can't explain why.

As in the past, we still all consider you to be the CL GURU. Thanks for calling me on that one.
Mr. Sam
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