[Z06] Service Column Displayed !!!!!
Pro
Joined: Nov 2006
Posts: 693
Likes: 92
From: Savannah GA
Anyone who does not have the CLB is making a mistake. If you think an extended warranty and service at a Chevrolet dealership are the solution to this problem you are wrong. If you think having a Corvette loaded onto a rollback has no risk of damage to the car you are wrong again.
Jeff
Jeff
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
Don't know where you read that the CLB could cause "feedback issues with the ECBM (sic) which could potentially fry it" .......
Whom ever wrote that had their head so far up their azz they were looking at their own tonsils ...... what
You find me ONE SINGLE occurance ..... anywhere on the net ..... can't happen, the CLB doesn't have anything to do with the EBCM (Electronic Brake Control Module).
There are thousands and thousands of C5 Corvettes using the CLB every day. The worst I've ever heard a failure in a CLB do is exxactly the same as if it had never been there .... the car displays the SERVICE COLUMN LOCK message if the CL controller has failed or the lock pin is stuck in the LOCKED position.
Whom ever wrote that had their head so far up their azz they were looking at their own tonsils ...... what
You find me ONE SINGLE occurance ..... anywhere on the net ..... can't happen, the CLB doesn't have anything to do with the EBCM (Electronic Brake Control Module).
There are thousands and thousands of C5 Corvettes using the CLB every day. The worst I've ever heard a failure in a CLB do is exxactly the same as if it had never been there .... the car displays the SERVICE COLUMN LOCK message if the CL controller has failed or the lock pin is stuck in the LOCKED position.
I think the thread mentioned something about feedback from the CLB.. but whatever.. mines working fine with the GM installed recall(s) and I have no intention of changing it until it fails.. we'll see how it goes.. you're probably right.. but for the time being i'm trusting in the GM engineers.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
your right.. that should have read ECM.. listen.. i'm not professing the point - i'm just bringing it up.. I read it on one of the corvette forums.. Digital corvettes, corvette action center, z06forum or here.. can't remember.. I'm contributing to the discussion.. not postulating. As always mod at your own risk..
I think the thread mentioned something about feedback from the CLB.. but whatever.. mines working fine with the GM installed recall(s) and I have no intention of changing it until it fails.. we'll see how it goes.. you're probably right.. but for the time being i'm trusting in the GM engineers.
I think the thread mentioned something about feedback from the CLB.. but whatever.. mines working fine with the GM installed recall(s) and I have no intention of changing it until it fails.. we'll see how it goes.. you're probably right.. but for the time being i'm trusting in the GM engineers.
The column lock is controlled by the Body Control Module (BCM) which is the computer located in the passenger footwell (it's that silver box to the left of the fuse block). The BCM is mainly responsible for managing the vehicle theft deterrent systems and vehicle lighting (Twilight Sentinal, Approach lights, etc.)
Let's take a look at how it works ....
You want to drive the car ... so you insert the key into the ignition cylinder. There is a small switch inside the cylinder that the key closes when it is inserted into the cylinder. That sends a 12 volt current on the "Key In" wire to the BCM.
The BCM now wants to unlock the pin, so the BCM then grounds the "Steering Column Lock Relay Control" .... that wire is hot at all times (12 volts) and the BCM simply grounds it when it wants to energize the relay. The relay is only energized when the BCM wants the lock motor to run.
The power for the other side of the relay is also controlled by the BCM .... it can apply positive voltage to one side of the motor, or the other, depending on which way the BCM wants the motor to run. In this case we are unlocking the pin. There is a switch that is activated by the position iof the lock pin. The BCM powers the lock motor until the switch signal goes to the appropraite status (12 volts says the pin is in the locked position, 0 volts says it is unlocked). In this case the BCM expects to see the unlock status within a preset time. If the status isn't achieved within that time .... PULL KEY WAIT 10 SECONDS is displayed on the DIC by the BCM. This is the BCM's way of "trying again".
All the CLB really does is control the 12 volts that the BCM sees from the lock status switch. The CLB is a set of relays that when the BCM energizes the UNLOCK side of the motor the CLB then disconnects the 12 volt lock status wire ... the BCM thinks the pin is now unlocked. When the BCM energizes the LOCK side of the motor the CLB connects the lock status wire and the BCM sees 12 volts (locked).
The CLB, by the way, does not allow the power to ever get to the motor, the motor never runs once you have put the CLB in. The GM K harness still allows the motor to run to move the pin ..... you can't fix stupid.
Bottom line, how would the CLB do damage to the BCM ????????
It can't ... it is just opening and closing a relay to "fool" the BCM into thinking that the lock has moved to the correct position by turning on or off a 12 volt current .... which is what the BCM expects.
Like I said before, I've never heard of a CLB damaging anything in the car .... and anyone who claims it can "fry" a computer in the car is ..... well .... I'll be polite ..... a freakin' moron.
Hope this helps convince you (and anyone else who has heard this claim) that there is no "danger" in installing the CLB.
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
Even ECM is incorrect ....
The column lock is controlled by the Body Control Module (BCM) which is the computer located in the passenger footwell (it's that silver box to the left of the fuse block). The BCM is mainly responsible for managing the vehicle theft deterrent systems and vehicle lighting (Twilight Sentinal, Approach lights, etc.)
Let's take a look at how it works ....
You want to drive the car ... so you insert the key into the ignition cylinder. There is a small switch inside the cylinder that the key closes when it is inserted into the cylinder. That sends a 12 volt current on the "Key In" wire to the BCM.
The BCM now wants to unlock the pin, so the BCM then grounds the "Steering Column Lock Relay Control" .... that wire is hot at all times (12 volts) and the BCM simply grounds it when it wants to energize the relay. The relay is only energized when the BCM wants the lock motor to run.
The power for the other side of the relay is also controlled by the BCM .... it can apply positive voltage to one side of the motor, or the other, depending on which way the BCM wants the motor to run. In this case we are unlocking the pin. There is a switch that is activated by the position iof the lock pin. The BCM powers the lock motor until the switch signal goes to the appropraite status (12 volts says the pin is in the locked position, 0 volts says it is unlocked). In this case the BCM expects to see the unlock status within a preset time. If the status isn't achieved within that time .... PULL KEY WAIT 10 SECONDS is displayed on the DIC by the BCM. This is the BCM's way of "trying again".
All the CLB really does is control the 12 volts that the BCM sees from the lock status switch. The CLB is a set of relays that when the BCM energizes the UNLOCK side of the motor the CLB then disconnects the 12 volt lock status wire ... the BCM thinks the pin is now unlocked. When the BCM energizes the LOCK side of the motor the CLB connects the lock status wire and the BCM sees 12 volts (locked).
The CLB, by the way, does not allow the power to ever get to the motor, the motor never runs once you have put the CLB in. The GM K harness still allows the motor to run to move the pin ..... you can't fix stupid.
Bottom line, how would the CLB do damage to the BCM ????????
It can't ... it is just opening and closing a relay to "fool" the BCM into thinking that the lock has moved to the correct position by turning on or off a 12 volt current .... which is what the BCM expects.
Like I said before, I've never heard of a CLB damaging anything in the car .... and anyone who claims it can "fry" a computer in the car is ..... well .... I'll be polite ..... a freakin' moron.
Hope this helps convince you (and anyone else who has heard this claim) that there is no "danger" in installing the CLB.
The column lock is controlled by the Body Control Module (BCM) which is the computer located in the passenger footwell (it's that silver box to the left of the fuse block). The BCM is mainly responsible for managing the vehicle theft deterrent systems and vehicle lighting (Twilight Sentinal, Approach lights, etc.)
Let's take a look at how it works ....
You want to drive the car ... so you insert the key into the ignition cylinder. There is a small switch inside the cylinder that the key closes when it is inserted into the cylinder. That sends a 12 volt current on the "Key In" wire to the BCM.
The BCM now wants to unlock the pin, so the BCM then grounds the "Steering Column Lock Relay Control" .... that wire is hot at all times (12 volts) and the BCM simply grounds it when it wants to energize the relay. The relay is only energized when the BCM wants the lock motor to run.
The power for the other side of the relay is also controlled by the BCM .... it can apply positive voltage to one side of the motor, or the other, depending on which way the BCM wants the motor to run. In this case we are unlocking the pin. There is a switch that is activated by the position iof the lock pin. The BCM powers the lock motor until the switch signal goes to the appropraite status (12 volts says the pin is in the locked position, 0 volts says it is unlocked). In this case the BCM expects to see the unlock status within a preset time. If the status isn't achieved within that time .... PULL KEY WAIT 10 SECONDS is displayed on the DIC by the BCM. This is the BCM's way of "trying again".
All the CLB really does is control the 12 volts that the BCM sees from the lock status switch. The CLB is a set of relays that when the BCM energizes the UNLOCK side of the motor the CLB then disconnects the 12 volt lock status wire ... the BCM thinks the pin is now unlocked. When the BCM energizes the LOCK side of the motor the CLB connects the lock status wire and the BCM sees 12 volts (locked).
The CLB, by the way, does not allow the power to ever get to the motor, the motor never runs once you have put the CLB in. The GM K harness still allows the motor to run to move the pin ..... you can't fix stupid.
Bottom line, how would the CLB do damage to the BCM ????????
It can't ... it is just opening and closing a relay to "fool" the BCM into thinking that the lock has moved to the correct position by turning on or off a 12 volt current .... which is what the BCM expects.
Like I said before, I've never heard of a CLB damaging anything in the car .... and anyone who claims it can "fry" a computer in the car is ..... well .... I'll be polite ..... a freakin' moron.
Hope this helps convince you (and anyone else who has heard this claim) that there is no "danger" in installing the CLB.
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
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Advanced
Joined: Sep 2007
Posts: 79
Likes: 0
From: Hampton Virginia
Well This just happened to me Thursday. after having my love 
"GASP" towed 
to a dealer. they then charged me $530 to fix the problem. $230 for the part and $200 and something in labor........ guess thats what I get for not getting the CLB sooner.......
"GASP" towed to a dealer. they then charged me $530 to fix the problem. $230 for the part and $200 and something in labor........ guess thats what I get for not getting the CLB sooner.......
, especially those monkeys at the dealership!
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
Pro
Joined: Sep 2006
Posts: 571
Likes: 28
From: Ocala FL
thanx-i installed the CLB today.WOO-HOO!. the instructions on 97vette.com were VERYhelpful. a little deviation from those instructions when it came to the actual CLB itself ie. no stripping of any wires.just followed the instructions from corvettes of houston that came with the unit. as soon as i plugged in the cigarette lighter the locking/unlocking motor cycled and unlocked itself FOR GOOD.i did turn the key to the on position anyway as per the instructions.the 97vette.com instructions with pics were very helpful in taking the interior apart.i read them several times while working on each step .took me hour and change i guess. had been putting it off for a month but its done.anybody with questions can PM me and leave a phone # and i will call if u like. thanx for all the posts on this subject.off to south florida w/o worries. vetrnz06
Pro
Joined: Oct 2007
Posts: 632
Likes: 2
From: Columbus Ohio
FWIW I also read that the CLB can possibly cause feedback and BCM or ECM failure- it is in the C5 steering column FAQ.
http://forums.corvetteforum.com/show...483&forum_id=1
02-04 Z06's should not have the wiring harness installed as 6 speed cars after 2001 did not have it installed.
Blackz06 still trying to reason through your analysis of the CLB system it seems legit but this is all new to me as well.
http://forums.corvetteforum.com/show...483&forum_id=1
02-04 Z06's should not have the wiring harness installed as 6 speed cars after 2001 did not have it installed.
Blackz06 still trying to reason through your analysis of the CLB system it seems legit but this is all new to me as well.
Last edited by hpfiend; Aug 27, 2008 at 07:40 AM.