Getting PCM Locked Message

[VetPet]

Hi Guys,

I'm posting for a friend of mine that just received V2. When he tries to connect to the PCM (2006 vette) it acts like it's going to connect and then partway through he gets a message that says 'PCM Locked'. I'm not familiar with V2 but after speaking to him on the phone it doesn't seem different than V1 except when you have to choose which GEN XX engine you're working with. Can anyone tell me what might be causing this problem?

Thanks :cheers:

[TAQuickness]

What's the seed?

[VetPet]

Dont' know. I'll have to find out. How would this cause the problem?

:cheers:

[TAQuickness]

Here's a few threads that may help you out:

http://www.forum.efilive.com/showthread.php?t=3527&highlight=ffff

http://www.forum.efilive.com/showthread.php?t=3307&highlight=ffff

[Black02SS]

Has the vehicle been tuned previously?

[wait4me]

What type of vette? A z06 or standard?

[Blacky]

Just for everyone elses benefit who may have the same issue, this was the reply sent from EFILvie support:

There are three possible reasons that can happen.

(Edit: all these points have been covered by the questions asked by previous posters in this thread - you're all on the ball guys, nice!)

1. The ECM really is locked, i.e. another tuner has tuned the ECM and locked the tune. In that case the tuner who locked it will need to unlock it.

2. EFILive displays the ECM's seed value as $FFFF in green text in the information window of the ECM flash reading window. If that is the case, then enter the value $FFFF in the Key field in the top left of the ECM reading window (include the $ sign).

3. You are attempting to read an LS2 (E38) ECM. EFILive does not have support for the E38 ECM yet, it will be supported in early 2007.

You can tell the difference between the E40 and E38 ECMs: The E40 had three plugs on it, the E38 has only 2.

Regards
Paul

[VetPet]

Thank you for all the replies. I've been away the last 5 days but will talk to my buddy and see if any of these are the issues. Will report back my findings.

:cheers:

[GMPX]

You can tell the difference between the E40 and E38 ECMs: The E40 had three plugs on it, the E38 has only 2.

Regards
Paul

See here - http://forum.efilive.com/showthread.php?t=3876

[Tordne]

What a cute family photo :D

[VetPet]

Found out the reason for the PCM being locked. It turned out that the car has the EC38 series PCM in it. Will have to wait until the boys have the program available hopefully early in 2007.

Thanks. :cheers:

[Extinct]

I've got the same problem on an 06 6.0 liter Silverado - Seed $0B01

A little help here ?

[wait4me]

What are you selecting for your pcm type? You need to select 99+ ls1 for it.

[Extinct]

Why, it is an 06?

[Extinct]

OK, that worked ?

[Tordne]

OK, that worked ?

The year of the vehicle is not as important as the PCM type controlling it all :)

[69camaro5speed]

just wanted to say having the picture to match up the pcm when you go to read.program.or scan was a kool idea some one needs a pat on the back for that

[GMPX]

Thanks, glad someone appreciates it :)