C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:
Old Feb 20, 2015, 12:05 PM
How-Tos on this Topic
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: Exterior How-Tos
Print Wikipost

Steering Column Lock FAQs - please read before you post (sticky please)

Thread Tools
 
Search this Thread
 
Old May 5, 2013 | 01:24 PM
  #1681  
RW Foster's Avatar
RW Foster
Instructor
15 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jun 2008
Posts: 219
Likes: 10
From: Avon Indiana
Default

Originally Posted by 8VETTE7
Perhaps. But the cost will be significant and worse, what ever they do will be a GM suggested solution and it's been demonstrated over and over that the GM Column Lock Service is NOT a permanent solution. The aftermarket CLB or LMC5 are....

You can sort it out yourself at a relatively small cost if you have a few basic skills and a few tools such as Torx drive screw drivers and a digital multimeter and wrenches that will allow you to replace the battery. If you need specific help/information/direction PM me and I can provide that. If you didn't live nearly 2000 miles from me I'd come over and help or do it for you.

I know the battery starts the car because you are driving it. But most likely the battery is the cause of what you are seeing/experiencing. When you have time I would do the voltage tests I described above. I think I would find the time to do that sooner than later before you are left stranded by the column lock system. It happens.
Yes, I can sort it out myself. Was just wondering if the dealers could sort it out just as a back up option. I've had my other vehicle in the body shop getting some hail damage taken care of. I will get it tomorrow, so I will be able to park the Z06 until this issue is solved. I do have the shop manuals as well.

Thanks for your time and I will gladly PM you if I run into a problem.
Reply
Old May 6, 2013 | 06:37 PM
  #1682  
streamliner's Avatar
streamliner
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 147
Likes: 18
From: Layton UT
Default

Originally Posted by 8VETTE7
If the steering locks with no key in the ignition, there is NOT a CLB or LMC5 installed.

Recall done on an 04 Z where the column still locks means that the PCM has been programmed to shutoff fuel at 2MPH when the BCM thinks the column is locked after it has requested an unlock.

Causes for that MOST likely is the battery but a fried Column Lock Relay can also cause the symptoms. You can measure the NO LOAD voltage ( voltage across the battery posts with the Neg battery cable disconnected) and it needs to be greater than 12.5 volts for the column lock electronics to function correctly. Car will start with as little as 12.2 volts no load BUT the column lock system WILL fail so you get the messages, Column may not unlock and 2mph fuel shutoff may be set. Voltage after the car starts is too late as the column lock system runs BEFORE the engine starts...

You can try charging the battery fully and see if it will hold a charge. A good battery at full charge measures between 12.7 and 12.9 volts or more (no load). Battery voltage on the dash guages does NOT indicate the state of health of the battery. It indicates the state of health of the charging system. With engine running it indicates the output voltage of the alternator. With key on and engine off it has little meaning since many electrical systems are loading the battery.

Only way to know if the Column Lock Relay is good (your car should NOT have a GM K Harness) is to see if the battery being charged corrects the column lock symptoms or to bench test the Column Lock Relay. CLR is located in the passenger footwell to the left of the IPC fuse box and above the BCM (large silver box). The wires in the wiring base identify it as the CLR, 2 orange, 1 white, 1 green and 1 purple.

I suggest that you install a CLB to avoid this problem in the future.
If the column doesn't lock with the key removed (mine doesn't) but I get the column lock message everytime I start something has been done to the car possibly under warranty (I'm second owner) to prevent the inadvertant lock while driving, correct? Could the message then still be from a low battery? I have noticed when left for a week or longer it barely starts. Thanks in advance for any help.
Reply
Old May 7, 2013 | 05:36 PM
  #1683  
streamliner's Avatar
streamliner
Instructor
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 147
Likes: 18
From: Layton UT
Default

Thanks for all the information. I was told the battery was new but I will check it. I e-mailed Gene yesterday for the GMVIS.
Reply
Old May 13, 2013 | 03:32 PM
  #1684  
MrWillys's Avatar
MrWillys
Drifting
 
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Default

I have a 2004 6spd Commemorative edition we bought new in 04. About 5 years ago I got the column lock error after sitting for awhile, but it went away. Yesterday we drove from Reno to Sacramento for Mothers day brunch. I stopped at a rest stop, left car running, and when I came out had the error code on the dash. Hit the reset and it went away. Valet parked the car, and when they brought it back the error was there again.
Battery is the OEM 86 6yr. I just checked the battery with my multi meter and it showed 12.43 volts. The car has always started and operated just fine, and when I just started it, error popped up, but when I scanned it, it showed no trouble codes. Do you guys think replacing the battery will stop this?
Reply
Old May 13, 2013 | 04:23 PM
  #1685  
Mitch McLaughlin's Avatar
Mitch McLaughlin
3rd Gear
 
Joined: Sep 2012
Posts: 3
Likes: 0
Default

Originally Posted by MrWillys
I have a 2004 6spd Commemorative edition we bought new in 04. About 5 years ago I got the column lock error after sitting for awhile, but it went away. Yesterday we drove from Reno to Sacramento for Mothers day brunch. I stopped at a rest stop, left car running, and when I came out had the error code on the dash. Hit the reset and it went away. Valet parked the car, and when they brought it back the error was there again.
Battery is the OEM 86 6yr. I just checked the battery with my multi meter and it showed 12.43 volts. The car has always started and operated just fine, and when I just started it, error popped up, but when I scanned it, it showed no trouble codes. Do you guys think replacing the battery will stop this?
I have a 99 six speed and last summer I was in a parking lot at a mall. Came out and started the car. Warning light on DIC. Moved less than 5' and the car shut down. Repeated with same result.
My steering column was serviced prior to this and I thought the problem was resolved with the GM recall.
I had to have the car flat bedded to a Chevy dealership.
I contacted a GM rep to complain about my problem with no success. They said it was a relay that had worn out and there was no restitution.
The dealership made the repair at a cost of $300.00 and I haven't had a problem since.
I had no problem with my battery.
I wish you the best.
Mitch
Reply
Old May 13, 2013 | 05:04 PM
  #1686  
SSRice's Avatar
SSRice
2nd Gear
 
Joined: May 2013
Posts: 2
Likes: 0
From: Chattanooga TN
Default

New here but wanted to post my findings and my repair. Did research here and found a ton of Advice..Thanks to all. Great Site

I had the remove key wait 10 seconds error then the "Service Steering Column Lock" message. Car would start but would cut off at 2.5 mph.
I tried all tricks of removing fuses, disconnecting battery and so on...

What I found was first recall removed locking plate and added K harness. All was good for 2 years
Then same issue. Towed to dealer. K Harness failed but locking motor still cycled, So Then dealer (last year) only removed K Harness and allowed motor to cycle.
Last week Same issue...This time the lock motor quit working causing same error. Luckily I was in my garage.

This time I heard about Compliance Parts (complianceparts.com) and the LMC5 MODULE. I called and talked to Richard in Tech Support, he was a GREAT help. I bought the LMC5 MODULE and had it next day shipped $40+shipping. (855) 565-8388
Needless to say it arrived, it was a super easy install and I am up and running with NO ISSUES.

I wouldn't normally bragg or advertise about this but because it was a pain in the butt trying to figure this out and the Fix was so easy and simple to install. (Plus Richard at Compliance was awesome)
I wanted to share this hoping it can help someone else with this issue
Reply
Old May 13, 2013 | 05:07 PM
  #1687  
SSRice's Avatar
SSRice
2nd Gear
 
Joined: May 2013
Posts: 2
Likes: 0
From: Chattanooga TN
Default

Originally Posted by SSRice
New here but wanted to post my findings and my repair. Did research here and found a ton of Advice..Thanks to all. Great Site

I had the remove key wait 10 seconds error then the "Service Steering Column Lock" message. Car would start but would cut off at 2.5 mph.
I tried all tricks of removing fuses, disconnecting battery and so on...

What I found was first recall removed locking plate and added K harness. All was good for 2 years
Then same issue. Towed to dealer. K Harness failed but locking motor still cycled, So Then dealer (last year) only removed K Harness and allowed motor to cycle.
Last week Same issue...This time the lock motor quit working causing same error. Luckily I was in my garage.

This time I heard about Compliance Parts (complianceparts.com) and the LMC5 MODULE. I called and talked to Richard in Tech Support, he was a GREAT help. I bought the LMC5 MODULE and had it next day shipped $40+shipping. (855) 565-8388
Needless to say it arrived, it was a super easy install and I am up and running with NO ISSUES.

I wouldn't normally bragg or advertise about this but because it was a pain in the butt trying to figure this out and the Fix was so easy and simple to install. (Plus Richard at Compliance was awesome)
I wanted to share this hoping it can help someone else with this issue
Oh yea and it doesnt require tearing the steering column and dash apart. It installs in the passenger floor board with BCM
Reply
Old May 13, 2013 | 09:03 PM
  #1688  
Spider Vette's Avatar
Spider Vette
Racer
 
Joined: Apr 2013
Posts: 427
Likes: 9
From: San Leandro California
Default

I have a 00 Conv C5 Auto & I installed the LMC5 just to be on the safe side... Reading all of the post had me nervous, So I wanted to be pro active. The cost is minimal not to go through some of the problems I have read... Thanks everyone who has chimed in & Given allot of insight on this crazy defect.. I recommend everyone get it just to be on the safe side!!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old May 14, 2013 | 12:12 PM
  #1689  
RW Foster's Avatar
RW Foster
Instructor
15 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jun 2008
Posts: 219
Likes: 10
From: Avon Indiana
Default

Originally Posted by RW Foster
Yes, I can sort it out myself. Was just wondering if the dealers could sort it out just as a back up option. I've had my other vehicle in the body shop getting some hail damage taken care of. I will get it tomorrow, so I will be able to park the Z06 until this issue is solved. I do have the shop manuals as well.

Thanks for your time and I will gladly PM you if I run into a problem.
Ok, I measured 12.59 volts across the battery, no load. I'm going to go get a replacement ACDelco professional battery, #86 right now.

Last edited by RW Foster; May 14, 2013 at 12:13 PM. Reason: misspelling
Reply
Old May 14, 2013 | 02:46 PM
  #1690  
MrWillys's Avatar
MrWillys
Drifting
 
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Default

I just had a friend buy me the AC Delco #86 including tax for $133. I measured the voltage at 12.49, so I put a trickle on it and it is taking a charge. I just figure after 9 years it can't hurt to change it, and will post up if it solves the problem.
Reply
Old May 14, 2013 | 03:02 PM
  #1691  
RW Foster's Avatar
RW Foster
Instructor
15 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jun 2008
Posts: 219
Likes: 10
From: Avon Indiana
Default

Originally Posted by RW Foster
Ok, I measured 12.59 volts across the battery, no load. I'm going to go get a replacement ACDelco professional battery, #86 right now.
Got the new battery, a new replacement ACDelco professional type, or class #86, hooked it up and immediately I'm back to normal. The steering column is again locked with the key out and the "service column lock" message is gone.

BTW, this is what I got back from Gene Culley (Thanks, Gene! ) with regards to the GMVIS request service history. Would I still benefit from the bypass kit?

Product Safety Recall N040006 04006 ELECTRONIC COLUMN LOCK SYSTEM 04/19/2004 Closed

And a huge thanks to 8VETTE7. You rock!!
Reply
Old May 14, 2013 | 04:22 PM
  #1692  
MrWillys's Avatar
MrWillys
Drifting
 
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Default

Got myself all freaked out about the radio theft lock, but turned out it was not enabled. Put the new battery in, and bingo, no more code. Thanks to all who created, and contributed to this thread.
Reply
Old Jun 17, 2013 | 04:16 PM
  #1693  
DefMunkie's Avatar
DefMunkie
Instructor
 
Joined: Mar 2012
Posts: 172
Likes: 7
From: San Antonio Texas
Default

It's back after the CLB...
99 FRC - 6 Speed

I installed the CLB last October and everything was running fine until yesterday while I was on my way to help a friend test drive some C5's since he is in the market to purchase one...Definitely not the best time for the steering column to go out again!!!
Battery was replaced with an Optima Red Top about 3 weeks ago.

I'm going to check Fuses #23 and #25 for the BCM tonight after work.
Any other recommendations on what else to check and what my next steps should be?

Thanks
Reply
Old Jun 17, 2013 | 05:49 PM
  #1694  
DefMunkie's Avatar
DefMunkie
Instructor
 
Joined: Mar 2012
Posts: 172
Likes: 7
From: San Antonio Texas
Default

Steering column is not locking with the car on and off, however I am getting the 2mph shutoff.

I think I removed the K harness per your instructions this thread, I will have to check once I get home. Not sure about the bypass, I will also check once I get home.
Reply
Old Jun 18, 2013 | 10:30 AM
  #1695  
DefMunkie's Avatar
DefMunkie
Instructor
 
Joined: Mar 2012
Posts: 172
Likes: 7
From: San Antonio Texas
Default

Originally Posted by 8VETTE7
If you need additional help recognizing a K Harness let me know. I can provide detailed instructions if you need them.

The Column Lock Relay bypass is a MUST if you have the spliced purple wire mod done by the dealer. ( 99 and 2000 manual trans cars ONLY)
The car started last night with no issues and drove normal with no DIC warnings or 2mph shutoff. I did not adjust anything, just cleared some codes.

After checking, there was no K harness, I removed that during the initial install, however there was the purple spliced wire with no bypass. I will install the bypass this weekend since I couldn't find any extra wire in my garage. Hopefully that will eliminate this issue once and for all.

A quick question: Are the CLB's prone to burnout or not function well over time? My tuner was telling me that they will eventually burnout and stop functioning over time.


Last edited by DefMunkie; Jun 18, 2013 at 10:33 AM.
Reply
Old Jun 18, 2013 | 12:44 PM
  #1696  
jffacets's Avatar
jffacets
Intermediate
10 Year Member
 
Joined: Dec 2010
Posts: 40
Likes: 0
From: N.Syracuse NY
Default

Originally Posted by DefMunkie
It's back after the CLB...
99 FRC - 6 Speed

I installed the CLB last October and everything was running fine until yesterday while I was on my way to help a friend test drive some C5's since he is in the market to purchase one...Definitely not the best time for the steering column to go out again!!!
Battery was replaced with an Optima Red Top about 3 weeks ago.

I'm going to check Fuses #23 and #25 for the BCM tonight after work.
Any other recommendations on what else to check and what my next steps should be?

Thanks


The repair is simple. Install a LMC5 and never have trouble again. It is install right at the BCM and bypasses the entire problem. You also no longer have a car sensitive to low voltage issues. You now can trust the car like you should be able to. They are sold here and on ebay.
Reply
Old Jun 29, 2013 | 01:59 AM
  #1697  
94FormulaBird's Avatar
94FormulaBird
Advanced
 
Joined: Jun 2008
Posts: 83
Likes: 0
From: Goose Creek SC
Default

column lock failed on me while at walmart today...luckily i only live 1/4 mile away so i was gonna leave it there until parts came in on monday/tuesday...until i found this:

Originally Posted by pdguorno
If you get the DIC message that your steering column is locked, you can just about always get it unlocked with properly applied force. Consider how it is supposed to work, put the key in the ignition and the steering column should unlock, take the key out of the ignition and the steering column should lock.

So, you get in your car, put the key in the ignition, turn the key to start the car and get the DIC message that the column is still locked. You try and turn the steering wheel but sure enough it is still locked.

What has worked for me is:

Turn the car off
Remove the key
Column is still locked
Put hands on the steering wheel at 10 and 2 o'clock
Try to turn left and right quickly and semi forcefully 3 or 4 times
The steering wheel won't move much when you do the step above
Put key back in the ignition put don't turn the key at all
Put your left hand on the steering wheel at 2 or 3 o'clock, palm facing you, you are grasping the inside of the steering wheel
While pulling down with quite a bit of force on the steering wheel with your left hand, like you are trying to turn to the right, very slowly turn the ignition key as if to start the car.
The steering column should unlock before you have turned the key far enough to start the car.
If it doesn't work the first time try again as this technique works quite often, maybe apply more downward turning to the right force on the steering wheel. You won't hurt anything.
If it does work, if probably won't lock up again if you leave the key in the ignition. Call Corvettes of Houston and have them overnight a Column Lock Bypass to you. Take 15 minutes and install the bypass.

This technique is mentioned in other posts but I thought bringing it out to its own post might save people some serious grief.

Go D'Backs

David in AZ .
and what do you know...it worked...i wasnt wild about leaving the vette at walmart over the weekend...so now it is back home and awaits bypass parts
Reply

Get notified of new replies

To Steering Column Lock FAQs - please read before you post (sticky please)

Old Jul 2, 2013 | 08:36 PM
  #1698  
UstaB-GS549's Avatar
UstaB-GS549
Drifting
20 Year Member
Conversation Starter
Liked
Loved
 
Joined: Dec 2003
Posts: 1,895
Likes: 84
From: Darien IL
Default DIC is now gibberish

2002 Z06 6 speed manual.
Probably had all the column lock recalls.
4 CL failures in 9 years, but new battery always SEEMS to fix it, except last time.

Recent failure, new battery, but the only way to unlock column was to hook up jumper cables for a few minutes and pull hard on wheel. Two weeks later it locks again. Jumper cables on it for a few minutes and finally got unlocked.

Tonight I installed CLB per instructions.
Plug in cigarette lighter harness to disengage CL.
Instructions say "Turn key on momentarily"
Column lock unlocks as soon as key is inserted all the way, but I turned key to on and then back off.
Plugged in CLB. Key in and got "wait 10 sec" message on DIC.
Pulled fuses 25 & 29 and waited about 5 minutes and reinstalled fuses.

Warning message seems to have gone away, but it hard to tell as the DIC display is now mostly gibberish.

What now?
Reply
Old Jul 2, 2013 | 09:35 PM
  #1699  
UstaB-GS549's Avatar
UstaB-GS549
Drifting
20 Year Member
Conversation Starter
Liked
Loved
 
Joined: Dec 2003
Posts: 1,895
Likes: 84
From: Darien IL
Default

Panic is over. DIC has a normal display again.

The CLB has been in the glove box for 2 years, because I thought CL failures were only result of dying battery and I'm stubborn.

Jumper cable from another running car seems to be a good work around to get CL motor to unlock. Tonight I gave up and installed CLB because the CL was working and motor would retract pin.

Not proven facts, but merely my observations:
CL failures seem to be almost random and temporary.
Low voltage to motor but not sure what causes that. Dead battery for sure, but there seem to be other factors.
All my CL failures were in hot humid weather
#1 washing car in driveway. Jerked around on steering wheel and problem went away. 2 weeks later battery went to zero volts & had to be replaced.
#2 three years later, hot and rainy evening, failure, so I tried every trick and then installed a new battery. Still locked, it was late, so I abandoned the car on street overnight. The next morning early, it unlocked and no problems for another 3 or 4 years.
#3 Was a few weeks ago. Hot and humid. Tried all recommended tricks to no avail. Then tried to install CLB, which did not work. Ended up buying a new battery. That had no effect other than to drain my wallet. The car was in a strip mall and I did not want to leave it overnight. As a desperation move I jumped the Corvette from another car with engine running. My theory was that the system would see 13 or 14 volts instead of 12.6 +/- volts and it seemed to work.
#4 was last Thursday and again it was hot and humid and I was stuck in a parking lot. Wife came with Mini and jumper cables and we got it unlocked in a few minutes.

We'll see how the CLB fares.
Reply
Old Jul 23, 2013 | 04:05 PM
  #1700  
harleyman152's Avatar
harleyman152
1st Gear
 
Joined: Jul 2013
Posts: 1
Likes: 0
Default pull key service steering column lock

I have been going crazy for 5 days doing everything i read on this site from replacing the battery buying the column lock bypass pulling fuses wait 10 min....everything....then I came across a thread that asked if I had any water on the carpet and I did...I began to read about about the CL relay under the passenger floor board...it's a gray box connector relay just above the big silver box...If it gets damp or wet it's no good....the connector has 2 orange wires 1 white 1 green and sometimes a purple. I couldn't believe auto zone sells this part...I bought a new one for like $20
plugged it in and my headache was gone...no more pull key...problem was gone...I hope this is the prob for you.If anybody has any other questions as to what i did please e-mail me at harly152@aol.com
Good luck
Steve
Reply



All times are GMT -4. The time now is 11:25 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE