[Z06] Service Column Lock Help Please
Thread Starter
Racer
Joined: Dec 2006
Posts: 449
Likes: 15
From: Waynesville, MO
Service Column Lock Help Please
Guys,
Im in a little bit of a situation and my car is stuck in a friends driveway.
I have a 2001 Z that gives me a "service column lock" message on the display and sometimes a "pull key and wait 10 seconds" message as well as a low voltage fault sometimes.
In a nutshell, the car stalls out if I take it above 2 MPH forward and reverse.
To my knowledge the plate has been removed in the column because I can turn the wheel, but I do not think a column lock bypass was installed. Possibly some software was ran on it too with the owner before me.
Any help is appreciated
Im in a little bit of a situation and my car is stuck in a friends driveway.
I have a 2001 Z that gives me a "service column lock" message on the display and sometimes a "pull key and wait 10 seconds" message as well as a low voltage fault sometimes.
In a nutshell, the car stalls out if I take it above 2 MPH forward and reverse.
To my knowledge the plate has been removed in the column because I can turn the wheel, but I do not think a column lock bypass was installed. Possibly some software was ran on it too with the owner before me.
Any help is appreciated
Last edited by tomseal6; Jul 6, 2015 at 07:15 PM.
Le Mans Master
Joined: Jul 2007
Posts: 6,094
Likes: 3,467
From: Oswego IL
This 10-year-old thread at the top of the Tech forum addresses all of your symptoms:
https://www.corvetteforum.com/forums...ky-please.html
https://www.corvetteforum.com/forums...ky-please.html
Cruising
Joined: Mar 2011
Posts: 10
Likes: 5
My 02 Z06 did this to me a year ago.
This how I fixed it:
1. pulled off steering wheel and ended up using cutting wheel mounted on a 4 inch grinder to cut off locking pin.
2. used HP tuners to edit PCM. Reset 2MPH fuel cut-off using the HP Tuners software.
I think this is the only real fix for the Column Lock problem.
The real expense is in spending the $700 or so on HP tuners.
And while I'm posting.............what a time bomb this problem is. An electronic column lock is such a stupid idea. It was only ever a matter of time before they started to fail one by one.
This how I fixed it:
1. pulled off steering wheel and ended up using cutting wheel mounted on a 4 inch grinder to cut off locking pin.
2. used HP tuners to edit PCM. Reset 2MPH fuel cut-off using the HP Tuners software.
I think this is the only real fix for the Column Lock problem.
The real expense is in spending the $700 or so on HP tuners.
And while I'm posting.............what a time bomb this problem is. An electronic column lock is such a stupid idea. It was only ever a matter of time before they started to fail one by one.
Racer
Joined: Oct 2008
Posts: 442
Likes: 14
From: Bowling Green KY
The steering wheel can not lock once the locking mechanism has been removed, but the computer still thinks the wheel is locked. Once the CLB is installed, the computer believes the wheel is not locked and will not disable the fuel pump after 2 MPH. The Column Lock Bypass should cure your problem, but make sure your battery is fully charged. A low voltage condition can cause the same symptoms. Good luck.
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Safety Car
Joined: Jan 2014
Posts: 4,496
Likes: 856
From: Walhalla South Carolina
From all I have read the LMC5 is the best solution, like the last post suggested, get it from Complicance. Richard is the best customer support guy on the planet. There was a post 2 weeks ago where an elderly guy in Oregon messed the LMC5 install up and Richard hoped a plane and flew out and fixed the guys issue because he thought he somehow felt resp. for the issue. I installed the LMC5 and would still get the message occasionally and ended up installing the brown wire mod that goes hand in hand with the LMC5 install. I even had my fuel shutoff set to 245 MPH so I would never have to worry about that again. Good luck
Advanced
Joined: Feb 2015
Posts: 69
Likes: 0
From: Bay Area
Hi, sorry to hear about your misfourtune, mine did the same exact thing to me last week after 4 days of owninging it. C5Zs are VERY sensative to low system voltage, so step 1 is ensure you have a "good battery". This means, IMO, interstate or optimo, less than 4 years old. If you have anything besides that, replace it. This will not solve your problem forever but it may help reduce the chances. Step 2, complianceparts.com, order the LMC5 Module only. If your correct that your steering wheel moves freely while the key is removed, you do NOT need the "LMC5 Unlocker", only the Module. The module itself is a very straight forward install. 4 pages, very detailed, pictures included, even the wire colors match the wires youll be replacing. Dont be too worried, the install took about an hour all you need is a 5/16" and a 1/4 wrench, if u dont have thise, you can buy them from compliance parts when u order your module. I just installed my 2 days ago, piece of cake. Good luck.
cant be the battery. Of all the C5's I owned, I think I finally just got hit with it
Advanced
Joined: Feb 2015
Posts: 69
Likes: 0
From: Bay Area