Check your email.

 

This whole thread is one reason I'm extremely hesitant to try and install a CLB on my 02 Z06. Unfortunately I do not have any skill in electronics and wouldn't know where to begin with a fluke meter (whatever that is), ohms, jumpers, and electrical diagrams. If I install the CLB and it conflicts with the recall as the FAQ suggests it might, I will be seriously SOL.

I sure wish there was a shop in the Northwest that understood how to take care of this for me.

 

Yeah, if there were someone down here in south Florida with an HP Tuner I also would pay to have the 2 mph raised.

 

I have finally fixed my column lock issues! Thanks GM!

Thanks Mike for sending me that information. It was just what I needed and more.

Here's my story. I never had the column lock issue on my Z06, but decide to get the recall done back in early 2007 when the car was there for something else. GM has had a few years to sort out the issue, so I figure it couldn't hurt. WRONG! Unfortunately, I don't know exactly what was done except I don't have the lock plate anymore, and they did not touch my programming. I have less then 1,800 miles since that day.

Out of the blue one day after washing my car, I started getting the dreaded service column lock and pull key and wait 10 seconds on the DIC. I decided to pull the car into the gararge on a slight incline and the fuel kept shutting off. I get on the forum and find out about this 2mph fuel cut off. Luckily, I have HPTuner and fixed that issue the next day.

So, I was still getting the "service column lock" and "pull key and wait 10 seconds" on the DIC which was very annoying. I read post after post of other people's issues. I wasn't sure which one applied to me. I am a visual person and needed the big picture with pictures. Then I saw 2fat2fly's post, and he sent me what I needed. He got the information from a fellow member, Cscokd. The power point file was nice and detailed. Anyways, I didn't know about the file until 2fat2fly sent it to me. Thanks 2fat2fly!

I'm pretty sure my car does not have the K-harness. I did have the black relay just above the BCM and decided to take it out of the picture. I ended up soldering the #30 and #87 wires together and cutting the the rest of the wires. After doing the PCM reset with the #25 fuse, I was still geting "service column lock" on the DIC. I had got my CLB the same day and decided to plug it in underneath the steering column. After the pcm reset, both messages stayed off. I did a test and took out the aftermarket CLB and hooked the original wires back up. Sure enough the messages came back I hooked up the CLB again, put the key in the on position, and no more messages . I'm pretty sure that my column lock assembly is the culpurit since it's being by-passed with the aftermarket CLB in place. The relay I took out seemed good, but I will just leave it out of the picture since it's not needed.

Here's the relay harness, and you can see the relay housing just left of the gray one.



Here's the orange and white wires cut and soldered together to by-pass the relay. The rest of the wires where cut and wrapped up later.

 

Guys on this forum are great!

 

Glad I could help,but I was just passing on the information someone else gave me.Cscokd is the man behind all the info on that powerpoint.If it wasn't for his help I'd be cutting the top off my corvette and making it a flowerpot right about now.That's why I think we have this great forum.So everyone one of us can share our combined knowledge so we all can enjoy our cruising missiles to the fullest.

 

I still haven't read anywhere what this relay is for ... anyone know exactly what it does?

http://forums.corvetteforum.com/show...4&postcount=19

 

It's another version of a GM column lock fix.Usually it's on manual cars,I believe.

 

So this was a new relay added by GM as part of the column lock recall? Teddy98Z28M6 said below that he didn't think his car had the recall (ie, K-harness), but yet he has the black relay by the BCM. Guess I'm missing something.

 

Mine didn't have the K harness either.I just had the one relay by the BCM.That's what got me confused from the beginning.But I did exactly what he did with the same results.

 

Here's my understanding. The K-harness relay and the auxiliary relay (I took out) are two different things. You could have both on your car. I didn't find anything left of my steering column where the K-harness was suppose to be installed. The auxiliary relay I took out was part number 12177233 and made in Canada.

"This auxiliary relay was eventually added to M6/M12 cars to prevent the steering column from accidentally receiving a spurious lock command from the BCM while the car is being driven. This circuit can cause K-Harness relay and/or aftermarket CLB relays to not operate reliably due to relay switching glitches. Recommend removal."

 

You're welcome forum friends

 

So was this "auxiliary relay" added in a certain production year, or was it slipped in as part of a column lock recall/fix by GM dealerships?

 

It sounds like part of the recall for the 6 speed cars. It's easy to locate just above the bcm with the 5 color coded wires in my picture. I did have to take the harness out of the relay housing and undo the electric tape to see all the colors more clearly.

 

That's exactly the relay.I gutted my relay and removed all the pins in it except for the #87 and #30 pins.I connected them on the inside the relay and then plugged it back in.Now I have it fixed and I don't have any possible wiring problems with any splices or loose wires hanging under the dash.It also looks factory from the outside.

 

I hate to beat a dead horse but this issue bothers me. I had both recalls (M6) so I assume I have the first and second set of relays and the "K" harness but the relays will eventally fail. So my best bet is to purchase an aftermarket CLB and install, taking out all the GM recall parts. Am I correct? I hate to get stranded again as I did a few years ago.

 

Honestly,yes.I had one of the recalls and it left my car stuck in my driveway while I figured it out.

 

Man, this GM column lock recall BS never ends. GM should have just sub-contracted one of the column lock by-pass makers to make up thousands of them and have the dealers install a CLB from the get-go.