That scenario fits the symptoms.

 

I meet with the Service Mgr at the Dealership and the meeting did not turn out well. The Service Mgr took the position that the A6 shifting issue, security and "check Engine" caution warning lights, along with the intermittent operation of the speedometer issues were all coincidental failures and had were not caused by the installation of the fuse block. He took his position in spite of the fact that all four issues presenter themselves at the same time the fuse block was replaced. His justification for his position was that the car was seven years old and the parts fail at some point. Hence it was just a coincidence that all failed on the day the repairs were done. My vette has 65,000 miles on it at this point. His final stance was that we would have to "agree to disagree". I was charged an additional $250 for the additional testing that indicated the TCM was faulty. I did not authorize any further work be done on the car by the dealership. I cannot allow them to make a profit from me while they are using their current business practices.

I have gone to another reputable mechanic and asked him to render a second opinion. I have provided all the test results provided by the Dealer. I asked him do three things. First, find out what needs to be done to cure the current issues with the car. Second, render an opinion as to why these issues all occurred at the same time. Third, repair the current issues with the car. This will take a few more days. I will report the findings as they are available.

 

In addition to having no honor, these guys sound like incompetent part swappers. Don't give them any more opportunities to screw up your car, even if they're willing to work on it for free.

How old is your battery?

 

My C6 is now back in good health. The results of the analysis of the second independent analysis is that the TCM failure was not a caused by the work done to replace the Fuse Block. In short, the dealer got it right. The TCM failure was a coincidence that it happened at the same time the fuse block was replaced.

The work done on the C6 was as follows:

Service manager notes: codes present -U- 0101 and P-2544. Need to replace the transmission control module. Will need to remove the transmission pan in order to access the control module which is part of the transmission valve body. Replace pan gasket and refill with synthetic transmission fluid. Reprogram the trans module when repairs are completed.

Parts list:
24238968 Trans Control Module
24224781 Trans Filter
ATF DexvIII Dextron "H" Syn
24239878 Electric Connector Slee
254236928 Sleve Seal o-rings

Cost for the TCM repair was $1,361.63

My C6 is now running as well as it ever did. I think it was worth getting the second opinion. It was good to get to the bottom of this.

 

Well I had it at the service center for the second time yesterday. The first time I had it there, they said they were not able to finish looking it over and checking all of the connections in time even though I left it for the day. I left it again yesterday and they said they thought it was fixed and could not recreate the problem. Well it didn't last long because the lights started acting up again on the drive home. I'm not sure about if they fail to disconnect the battery, but I do know they disconnected mine because the windows needed re-indexed which I did using that hold-the-switches thing. So far they have not changed me because of all the pestering I did that got me in touch with the corporate office which is nice, and I guess is the only thing keeping me from getting pretty mad about having to leave it there for the third time.

 

Doesn't your car have a 7 year/100,000 mile powertrain warranty? I would think the tcm is a covered powertrain part. Even if you are over the 7 year timeframe, the dealer should have authorized the repair under warranty.

 

How come this doesn't cover c6 z06? Its the same fuse box essencially.