Originally Posted by friou

I'd start with calling the vendor, they have a heck of a reputation for helping folks out. Then go from there if necessary. Best wishes!

Originally Posted by Hydeios

I think my comments were taken wrong and apologize. All of you are correct, I spoke with the people I got the LMC5 from several times and You all are Right, I have nothing but Great Things to Say about Them and Their Customer Service. Their Tech Rep and I spent several Phone Calls trying to trace the issue down. They are continuing to Help Me also. All I was trying to find out was if anyone may Know of ANYTHING ELSE that could be the problem if The BCM does not fix it. THIS WAS NOT TO BASH THE LMC5, you can rest easy. Secondly, I did not come here until Now because They were working with Me and are Continuing to work with Me. All I really wanted to Know is what other Parts or Issues could be the problem, I really feel it is going to be a Wet Issue and hope the BCM fixes it. As far as what the Problem is I thought I explained it but guess not. I did get the Column Unlocked with another Item I purchased with the LMC5 and so Yes, the Column is Unlocked at this time, the Relay has been Disconnected, All fuses are Good with good Voltage tested with Multi Meter, but what other issue can I say, The car will Crank and The Fuel shuts off due to the Message. I do Appreciate the Replies but this was in No Way trying to put down the product.

Originally Posted by rrwirsi

Congratulations on buying your Vette and welcome to the forum. The forum will help you understand, identify, and repair stuff that breaks on the C5. Some of the members comments may get crusty as you found in some of the replies to your issue. But, mostly done in jest.
After the BCM install, please update the post. It will help others that experience the same issue.

Originally Posted by 8VETTE7

First of all you were pretty nieve to accept that a NHTSA safety recall even has an expiration. It DOES NOT. You can contact NHTSA to verify that fact. A dealer may try (succeed in your case) to getting rid of a customer by saying that but in fact they MUST service the car no matter how old the car is. In this case I would personally NOT let the dealer touch the car. JMHO. They will find a way to charge you for something that should be free of charge. Additionally the GM recall Service is NOT now nor has it ever been a permanent solution to the column lock symptoms.

Second you need to explain more about exactly what is happening after you installed the LMC5. Is the column still locked?? Are you getting some other symptoms related to column lock?? If so be specific in exactly what that is. We can't guess.

Third, when you were unable to clear the problem with the LMC5 why did you NOT call the vendor??? They are a very dedicated company with customer service second to NONE.

Lastly if you are not mechanically or electrically capable why did you wait so long and spend so much money before coming here???????????????

Originally Posted by Phanni

A weak battery can also give similar problems.

Originally Posted by RoninC5

8Vette7 makes a few good points and he knows what he is talking about... The LMC5 product is very reliable with a heck of a success rate and equally great support. However with water in the mix, anything may be possible. You'll get some great feedback here....BTW- My dealer offered to do the recall (as mentioned they have to) but the LMC5 is the real solution today....

Originally Posted by 8VETTE7

You did say the car is an automatic and you further have said that the column physically locked at one point. This tells me that the recall service was NOT performed on the car by GM or if it was performed that it was NOT done correctly. On the 97 - 2000 automatics a required step was to replace the column lock ring with a smaller diameter lock ring that physically prevents the column from locking. Since your column physically locked at one point the full size lock ring is still in place.

The LMC5 install requires that the column be physically unlocked and it sounds like you accomplished that probably with the unlocker tool. So at this point I would NOT bother with getting the Stealership to perform the recall service since they will certainly cause additional complications if not expense to your situation.

All this is moot at this point because it seems that the problem you are experiencing is the fuel shutoff when you attempt to drive the car. Is this correct???

If yes then there is a solution that can be done to the car to stop this from happening if a replacement BCM does not correct the symptom. As stated above, the BCM getting wet seriously complicates things since it is the BCM that completely controls the column lock system. Possibly a replacement BCM will function correctly.

You can find a tuner with either EFI Live or HP Tuners tuning software and have the fuel shutoff speed set to a high number such as 200 or 255MPH. This speed is stored in the PCM and NOT the BCM. This fools the system since even if the BCM requests the "enabling" of the fuel shutoff by the PCM, the PCM uses the stored speed to determine when to shut off fuel. 200 or 255mph should meet your need I suspect.

Originally Posted by 8VETTE7

No. The raising of the fuel shutoff is just making the car driveable. The "Service Column Lock" message and or the "Pull Key and Wait....." messages are generated by the BCM because it thinks the column lock system is NOT working correctly. There may be due to problems internal to the BCM from it getting wet or there may be external issues with the wiring or LMC5 install that cause the BCM to think the system is not working.

The only thing you can do to check the external causes is check and double check the LMC5 install and the wiring to the Column Lock Relay and the relay itself for the Column Lock Relay if it is still installed.

Since you mentioned that you have ordered a replacement BCM and plan to install it, you should check the wiper well udders on the car as well as the AC Condensate drain if you have not already done so. Would be a horrible thing to install a new BCM and then have it get wet because of either washing the car or driving in rain.

Here is a link to a thread that discusses these issues with pictures:

http://forums.corvetteforum.com/c5-t...ak-checks.html

Originally Posted by 8VETTE7

The "Shocks Inoperative..... " is clearly because the BCM you received has the RPO for F45 configured into it. Here is a link to the steps necessary with a TECH II to clear that RPO. The procedure referrs to the F55 RPO which is the option for the 2003 - 2004 C5's but the steps to deleting the F45 are EXACTLY the same as for the F55:

https://www.corvetteforum.com/forums...-and-25-a.html


Anyones guess what the message about the "Service Column Lock " was all about. It could easily be the result of leaving the key in the ignition while the tech was attempting to delete the F45 RPO and then you starting the car without first removing the key.

STRONGLY recommend that you get an LMC5 and install it ASAP so you never have to deal with the column lock issue again!!! SAVE the install instructions after the install in case you start to get the "PULL KEY......" message after the LMC5 install. On page 2 of the install instructions is a procedure for doing the "brown wire" mod that will prevent that message. Some BCM's encounter timing relayed problems that require the brown wire mod.

The person that told you the TECH II needed additional programs does not know what he is talking about!!!! The person with the Tech II obviously does NOT know how to use it. There is NO SEPARATE program to be able to delete RPO's. The Tech simply is unfamiliar with the tool and lacked any idea of how to accomplish the F45 delete.

If you are unable to find someone else with a TECH II that does know how to use it, take the above instructions back to the first TECH and provide him with the proper steps.. He should NOT attempt to take any shortcuts. Follow the steps to the letter.......