I have an 02 Z06. The column lock recall service was done 6 weeks ago. column lock was removed and relay was installed

Since then got several Pull Key - Wait 10 Sec messages. Their frequency seemed to be increasing. Was at the track anticipating another fun HPDE day when I got the Pull Key - Wait 10 Sec message followed by Service Column Lock. Needless to say, the car would immediately stall after clutch was engaged - fuel cutoff. Had to have it flat-bedded to dealer near track. No track day

Any thoughts on the problem? Faulty relay installed during recall?

Does recall work come with a warranty? If it is a problem with the recall work will GM cover the towing cost?


Can I fix this myself?

 

GM should cover the tow. The same situation with my car. I had it towed and the dealer removed the K harness because it was bad. Today I installe the CLB. I hope I'm done with these dealers and GM's recalls.

 

Install the CLB......I did. If this happens again when you are on the road a hard snap to the right with the key in the on position released mine, I had to do it a few times.

 

It's worked for me every time in my 01 z06 when this happens...

I steer left and right while it's locked, back and forth a couple times (not extremely hard, but hard enough), and then reinsert my key.

Works every time for me...

 

Uhhh... Guys? The locking plate was removed as part of the recall he did 6 weeks ago so it's not locked. The problem is the BCM thinks it's locked (due to the faulty Harness K) which results in fuel cutoff. Turning the wheel doesn't do anything because.... it's not locked.

Your problem is likely a faulty Harness K, and some info on this forum indicates that the Pre-2004 lock actuator is actually the problem. The GM recall removes the locking plate in the steering column so the lock cannot engage, but the Harness K still provides power to the lock actuator (why I don't know). Either the lock actuator causes the Harness K to send the incorrect signal to the BCM, or the Harness K itself is bad.

The best thing you can do right now is buy the CLB and replace the Harness K with it. I've had my CLB for 6+ years and never had any problem, and part of that is because GM never touched my CL.

 

Maybe Corvettes of Houston or Thunder Racing should give GM a break on a pallet load CLBs. :o

 

[QUOTE=JC in XTC5]Uhhh... Guys? The locking plate was removed as part of the recall he did 6 weeks ago so it's not locked. The problem is the BCM thinks it's locked (due to the faulty Harness K) which results in fuel cutoff. Turning the wheel doesn't do anything because.... it's not locked.[QUOTE]

I thought that what they did was just replace it with the same part and not eliminate it?

 

I'm going to install the CLB. Is one preferred over the other: Thunder Racing vs. Corvettes of Houston vs. PFYC?

Also how do I reset/clear the "service column lock"? I'm assuming that replacing the K harness relay with the CLP relay won't clear the error message. Unfortunately, when I scan the DIC no error code is displayed. I assume I need some sort of code scanner to clear message.

 

1. make sure your column is NOT locked
2. remove your knee bolster and remove your K Harness
3. leave the ECL harness disconnected
4. check wire colors going to your ECL connector on the BCM side. Make sure they are orange, purple, green, black. If they are, you should install your CLB and be good to go. The error code might pop up on the first ignition cycle, but should clear itself after the next ignition cycle when it re-synchronizes itself. You can also go under your passenger footwell and remove/re-insert fuse #25 which should clear the error also.
What should I do if the wires are White, Purple, Green, Black?
This means you have another relay mod installed under the passenger footwell near your BCM which will interfere with the reliable operation of either the CLB OR the K Harness. I recommend removing the relay and bypassing it with a wire jumper. See my instructions in the sticky above.

As far as which CLB to buy...those from COH or Thunder Racing are both acceptable. I am not familiar with the ones that PFYC sells.

Lastly, I have seen several posts suggesting that you should have a tuner change your PCM code back with EFI Live. This is misleading information. To do this, you would need to upload the entire PCM code, disassemble the software binary file and reverse engineer the GM assembly language software. Nobody has successfully done this as far as I am aware of. And I'm not sure you can even access the correct segment of the the flash memory to change it without special GM software because it will be locked by GM. Additionally I have not heard of any Chevy dealer being able or willing to put the original code back in either.

PM me if you need further assistance.
John

 

Another testimony to the idea of the CLB. It was probably the best MOD I ever made to my 01' six speed!!!

 

Hi ddl6289,
My '01 gave me the "pull key -service column lock" message the other day. I already had the locking plate removed but otherwise the system was as from the factory (i.e. no BCM reflashing or K harness). The fuel shut off for me too. I pulled the #23 and 25 fuses and that appeared to clear everything and restored my fuel. I too, however, intend to get the CLB. I spoke with the mechanic at my local Chevy dealership and he confirmed for me that he has had experience with the relay failing in the K harness "fix". Squeezing my big 'ole self into the footwell to pull fuses is not something I want to be doing on a dark, rainy night, and I don't have enough confidence in the K harness to go that remedy/route. In regard to the K harness, I saw someone post that you should look for one with a black, not a gray, relay. Supposedly the former was more reliable? I wish I knew something more solid than that anecdotal remark.

 

The car was flat-bedded to dealer last Friday. They looked at it this morning and claim the problem was not with the recall because they removed the recall harness (89023816), used a "bypass" and the problem was still present. They claimed they were getting voltage spikes from the wiring from the BCM and suspected either the wiring or BCM might be bad but they weren't sure. They wanted us to authorize another 1.5 hrs in diagnosis time. We asked them if they had seen this type of problem before and they said twice; one time was easy to fix they other time took them a week to diagnosis. At this point we said "no thanks" and will be bringing the car home (via flatbed). I will try to fix it myself by removing the recall harness and installing a CLP harness from COH.

Wish me luck!

 

I have an 02 z06 and this weekend the column locked. The car had already had the recall done on it. Had the car flat bedded in. After all weekend in the shop they adviced me that there is an update to the recall and they paid for everything, even the flat bed. I'm seriously thinking of putting on the CLB.

 

Do it

 

The second dealership has the car running. They said the K-harness relay was defective and replaced it with a new one. There was no charge for the fix as the recall work was under warranty. Hopefully the fix will stick. Tempted to install the CLB from COH. Any advice?

Now we're going to try to get GM to re-imburse use for the $350 in flat bed fees and the $130 we paid the 1st dealership, who told us the problem was not in the K-harness but in the BCM. Wish us luck

 

This all sounds very familiar as I am a GM Corvette tech here in Cincinnati. The current (and previous) protocol for repairing the column lock from GM is to remove the steering column lock plate and install jumper harness and relay kit. About 1 year ago and 3 months the color of these relays changed from grey to white , and changed part #'s. I dont have the part #'s in my head, but I know when I installed the first white colored relay at the dealership, I had problems. Immediate pull key wait 10 seconds message. Call in to technical assistance revealed that they had problems with the new relays and that I should try "several" until I find one that works . All of the previous dark gray relays worked flawless. This is unbelievable to me since this new relay is part of a federally mandated recall(01-0-44). I understand the previous manufacturer of the gray relays went "belly-up". Now GM thinks that we should put this relay into all vehicles, manual or automatic. I have removed multiple relay's from vehicles that have had these procedures done at other dealerships and had these same problems. I still have two of these previous relays, but I am keeping them for my own two Z06's, if I ever decide to put them in.
My opinion........CLB or fight GM, save yourself the headache and get the CLB