[Z06] HELP w. SERVICE COLUMN LOCK light!!!
Thread Starter
Pro
Joined: Dec 2006
Posts: 646
Likes: 22
From: Wilmington NC
HELP w. SERVICE COLUMN LOCK light!!!
I just recently had a service column lock POP UP on my diag. scrren and I have already had the bypass replaced and have not seen any complications out of it. I then proceeded to do the promps in the car to delete the code and I still cant get rid of the code popping up everytime i start the car and i have to hit the reset button for it to temp. clear. I dont want to take it to the dealer and have it flashed because i have a custom tune on the car and i dont want it jacked up. Anyone have any ideas on a quick fix or similar problems???
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
If your actuator was working before you installed the bypass, you might try reconnecting it to see if the error goes away.
It is possible the relay in your bypass is going bad, or is out of sync with the BCM someway.
What brand of bypass did you install?
It is possible the relay in your bypass is going bad, or is out of sync with the BCM someway.
What brand of bypass did you install?
Thread Starter
Pro
Joined: Dec 2006
Posts: 646
Likes: 22
From: Wilmington NC
it was done at the dealership so i am guessing delco or some other affiliate...Im guessing disconnectiing the battery will not clear the problem either?? I cant believe there is not an easier way to get rid of this crap...its annoying seeing it every morning.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Usually, when the relay fails, and the BCM thinks the column is locked, it sends a signal to the PCM to shut off the fuel when you try to drive over 2-3 MPH. At least you don't have that problem.
Last edited by TEXHAWK0; Feb 18, 2008 at 05:41 PM.
Pro
Joined: Nov 2006
Posts: 693
Likes: 92
From: Savannah GA
The easy cure is to install an aftermarket bypass. This is one of those areas where GM really screwed up and their fix, at least as installed in the typical Chevy service department is faulty. All ZO6 owners should do the aftermarket install themselves before this defect bites them in the butt.
Thread Starter
Pro
Joined: Dec 2006
Posts: 646
Likes: 22
From: Wilmington NC
thanks for the love guys....I was just hoping it was an easier fix...Ill go ahead and order that part from Jonathon at THUNDER RACING...Ive dealt with them alot in the past so hopefully this will fix the problem...
Instructor
Joined: Jun 1999
Posts: 180
Likes: 23
From: CAPE CORAL FLORIDA
zo6 column problems
hi guys, i just bought my 04 zo6 , 4550miles, i have been reading the problems some are having with there steering column.
does this affect all z06 cars, was there a recall?
thanks,
does this affect all z06 cars, was there a recall?
thanks,
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
The 04 models were supposed to have an improved column lock design, but there has been a recall on all 6 speed cars. I installed the recall kit originally intended for the pre-2001 automatics on my 04 Z06, and it is still working fine.
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Burning Brakes
Joined: Jul 2003
Posts: 904
Likes: 36
From: Santa Cruz CA
Can you go back from the GM fix?
I have an 02 that has 38k miles on it and I had the local dealership print out the service record when I got it and found that the 'fix' had been done by GM in the normal recall fashion. I was just going to pull it out because I had heard the story that the GM fix was more just a motor kill at 2-3mph and didn't fix the lock problem. But I could have sworn I read in the FAQ at the top somewhere that when they did the fix at a dealership they also flashed something different in the computer, so there was no way to go back once the dealership had changed it. Unless you had your original tune but buying a used car, who would? Makes me worry all the time, anyone know about the computer thing? I would love to put in the aftermarket one but I heard once the factory fix is in you are stuck. Thanks for any information.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
I am thinking that even if your fuel is programed to shutoff when the BCM thinks the column is locked, as long as you have a working relay in the system to send the correct signal back to the BCM, everything should work.
Therefore, an aftermarket CLB relay should work.
The problem comes if the relay fails, and the BCM senses a malfunction, sending a signal to the PCM to cut the fuel.
I read one letter from GM that said later model cars were always programmed to cut the fuel if the BCM determined the actuator was in the locked position. The reprogram was to correct a situation that could occur during low voltage where the column could actually be locked and the BCM would not react in time to cut the fuel, so you could potentially drive the car with the column locked.
Therefore, an aftermarket CLB relay should work.
The problem comes if the relay fails, and the BCM senses a malfunction, sending a signal to the PCM to cut the fuel.
I read one letter from GM that said later model cars were always programmed to cut the fuel if the BCM determined the actuator was in the locked position. The reprogram was to correct a situation that could occur during low voltage where the column could actually be locked and the BCM would not react in time to cut the fuel, so you could potentially drive the car with the column locked.
Racer
Joined: Aug 2007
Posts: 317
Likes: 0
From: Shediac New-Brunswick
Mine did that yesterday. My car was in storage for about 4 months and the batt was dead and when I tried to start it the "service column lock" warning came on. To fix this all I did was remove the batt charge it and it fixed the probleme.
Thread Starter
Pro
Joined: Dec 2006
Posts: 646
Likes: 22
From: Wilmington NC
I am wondering if this issue I am having is due to a similar scenario, I dont have the car very often and I had had problems in the last few weeks with the car starting real easy when its cold and what not... I am wondering if replacing my battery might fix my problem as well???
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
I am thinking that even if your fuel is programed to shutoff when the BCM thinks the column is locked, as long as you have a working relay in the system to send the correct signal back to the BCM, everything should work.
Therefore, an aftermarket CLB relay should work.
The problem comes if the relay fails, and the BCM senses a malfunction, sending a signal to the PCM to cut the fuel.
I read one letter from GM that said later model cars were always programmed to cut the fuel if the BCM determined the actuator was in the locked position. The reprogram was to correct a situation that could occur during low voltage where the column could actually be locked and the BCM would not react in time to cut the fuel, so you could potentially drive the car with the column locked.
Therefore, an aftermarket CLB relay should work.
The problem comes if the relay fails, and the BCM senses a malfunction, sending a signal to the PCM to cut the fuel.
I read one letter from GM that said later model cars were always programmed to cut the fuel if the BCM determined the actuator was in the locked position. The reprogram was to correct a situation that could occur during low voltage where the column could actually be locked and the BCM would not react in time to cut the fuel, so you could potentially drive the car with the column locked.
ALL C5 PCM have the "fuel shutoff" in them. The re-flash was to ensure that the cut-off was invoked if there was any doubt about the status of the steering lock. The re-flash DID NOT ADD the fuel cut-off ... it has always been there.
The "issue" with the GM relay is that when it fails (as it seems to do more often than people can accept) the fuel shut-off is invoked. Third party bypass basically do the same thing as the GM relay. It appears, though, they are more reliable than the GM kit.
