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:

column lock

Thread Tools
 
Search this Thread
 
Old Nov 30, 2004 | 04:04 PM
  #1  
gmosley's Avatar
gmosley
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Oct 2004
Posts: 802
Likes: 0
From: Bueche Louisiana
Default column lock

i have an 01 coupe with an a4 was wondering if i have anything to worry about as far as the column lock goes
Reply
Old Nov 30, 2004 | 04:13 PM
  #2  
wwashing's Avatar
wwashing
Le Mans Master
20 Year Member
 
Joined: Feb 1999
Posts: 6,269
Likes: 1
From: Richmond Ca
Default

Originally Posted by gmosley
i have an 01 coupe with an a4 was wondering if i have anything to worry about as far as the column lock goes
If with the key off and the car in park you can turn your steering wheel (should be the case with an 01), you do not have a column lock.
Reply
Old Nov 30, 2004 | 04:13 PM
  #3  
roscoe118's Avatar
roscoe118
Safety Car
20 Year Member
Conversation Starter
 
Joined: Apr 2004
Posts: 3,738
Likes: 10
From: Austin, Texas
Default

Since it is an A4, have the recall done by your Chevy dealer, and you should be good to go

Reply
Old Nov 30, 2004 | 04:54 PM
  #4  
RandyC5's Avatar
RandyC5
Instructor
 
Joined: Nov 2004
Posts: 119
Likes: 0
From: San Diego CA
Default

ok i'm new.........what about the 99 FRCs.....thanx lol
Reply
Old Nov 30, 2004 | 06:26 PM
  #5  
JC in XTC5's Avatar
JC in XTC5
Drifting
10 Year Member
 
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Default

Originally Posted by RandyC5
ok i'm new.........what about the 99 FRCs.....thanx lol
All FRCs are MN6s, and all MN6s are doomed to have the Column Lock in place, unlike the A4s that can have them disabled. The reason is that all cars need some type of safety immobilizer, and the A4s have the shift interlock.

The ONLY solution for MN6s is to install a column lock bypass. I've had mine in since I got the car and never looked back.
Reply
Old Nov 30, 2004 | 07:15 PM
  #6  
Shylor's Avatar
Shylor
Le Mans Master
10 Year Member
 
Joined: Nov 2001
Posts: 6,984
Likes: 0
From: Central Coast CA
Default

Originally Posted by JC in XTC5
The ONLY solution for MN6s is to install a column lock bypass.

An aftermarket bypass can send incorrect voltages, causing damage to the BCM. Not everyone will have this happen but, when it does it is expensive to repair. The only GM approved bypass is the Harness K, cost a little more but won't damage your BCM.
Reply
Old Dec 1, 2004 | 12:31 AM
  #7  
vetteshop's Avatar
0vetteshop
Former Vendor
 
Joined: Apr 2001
Posts: 10,976
Likes: 21
From: FL
St. Jude Donor '13
Default

Originally Posted by gmosley
i have an 01 coupe with an a4 was wondering if i have anything to worry about as far as the column lock goes
2001-04 A4 no longer has a column lock
Reply
Old Dec 3, 2004 | 09:43 AM
  #8  
ProtoVette's Avatar
ProtoVette
Pro
 
Joined: Aug 2004
Posts: 596
Likes: 0
From: PA
Default

Originally Posted by Shylor
An aftermarket bypass can send incorrect voltages, causing damage to the BCM. Not everyone will have this happen but, when it does it is expensive to repair. The only GM approved bypass is the Harness K, cost a little more but won't damage your BCM.

What is the Harness K, and were can you get them?
Thanks,
Chris
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Dec 3, 2004 | 09:50 AM
  #9  
ShanMan14's Avatar
ShanMan14
Administrator
25 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Apr 2000
Posts: 40,998
Likes: 474
From: Madison, AL
Cruise-In II Veteran
Cruise-In V Veteran
Default

My column locked on my 98, then a month later I got the recall notice. At the time I installed the CLB since I wasn't interested in spending $700 to fix it GM's way.

Is it true the CLB can damage the BCM? Should I take it in and have GM appy their "fix"?
Reply
Old Dec 3, 2004 | 10:20 AM
  #10  
RoHo's Avatar
RoHo
Melting Slicks
 
Joined: Jul 2004
Posts: 2,846
Likes: 5
From: Sandy Ego CA
Default

There have been thousands of the column bypasses installed in corvettes and this is the first time I have even heard this mentioned regarding damage to the BCM & I really question that, the column bypass is a very easy fix that can be done in 20 min. To avoid the inconvience of having your car lock up at a most inappropriate time I would highly recommend the bypass procedure, it was one of the first mods I did to my 04. One of my associates was on vacation last summer in lake Tahoe and he had the dreaded column lock experience, took three days out of his vaction to get it rectified.
Reply
Old Dec 3, 2004 | 12:40 PM
  #11  
Shylor's Avatar
Shylor
Le Mans Master
10 Year Member
 
Joined: Nov 2001
Posts: 6,984
Likes: 0
From: Central Coast CA
Default

Roho, One thing to consider is there are more C5's that have not had a column lock issue, than those using an aftermarket bypass. Many people added the bypass and even though they never had a column lock prior. It doesn't mean column locks are not an issue. Not hearing about reports of BCM damage while using an aftermarket bypass doesn't mean they haven't been damaged. Many times the reason as to why the BCM isn't functioning correctly is unclear until further diagnostics determine it to be the aftermarket bypass.



Damage to the BCM can and does happen. Yes it is rare but the BCM is costly to replace. The Harness K is a GM bypass you can purchase from a GM parts department. I think it costs like $80 and I believe you have to remove the steering wheel. Again it is rare the you will experience damage to your BCM but expensive to replace if it does occur. I've heard this from several Corvette techs that saw it first hand and C5 owners that had problems with their BCM which were related to an aftermarket bypass.

I would suggest anyone with an automatic trans to take their car in for the recall. Those with a manual trans remember, the recall doesn't fix the problem. So either leave it alone or get a bypass (approved or aftermarket), if you want it fixed.

For my Z06, I'm not doing the recall or installing a bypass. That may change if I ever experience a column lock.

Last edited by Shylor; Dec 3, 2004 at 12:49 PM.
Reply

Get notified of new replies

To column lock





All times are GMT -4. The time now is 05:32 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE