i recently picked up a 01 z06 went to have my tuner work some magic and the pcm was locked (i hate when tuners do that some of them r just douches) so i went and got a extra pcm i had layin around from my 2000 and put it in the z06 and the computer couldnt even see the 2000 pcm. my question is why is that? i would think it would at least be able to see it so u could flash it to the correct os and vin. or is that something hp tuners cannot do.

 

Did you do a relearn? Review this and see if it works:


If you simply have your PCM programmed then you are OK. Using a completely different PCM will require the VATS re-learn....this is the security system. The car will not run without the re-learn. A Tech II can be used or it can be done manually. Here it is:

Important
The body control module (BCM) must be programmed with the proper RPO configurations before performing learn procedures. Refer to BCM Programming/RPO Configuration .
If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn the passkey data code immediately. The existing PCM however, must learn the new fuel continue password when the BCM is replaced.
If replacing a PCM with a GM Service Parts Operations (SPO) replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn the current vehicle's password.

Conditions
Use these procedures after replacing:

BCM
PCM

10 Minute Learn Procedure

Tools Required
Tech 2
Techline terminal with current SPS (Service Programming System) software
Connect the Tech 2 to the vehicle.
Select "Request Information" under "Service Programming".
Disconnect the Tech 2 from the vehicle and connect it to a Techline terminal.
On the Techline terminal, select "Theft Module Re-Learn" under "Service Programming".
Disconnect the Tech 2 from the Techline terminal and connect it to the vehicle.
Turn ON the ignition, with the engine OFF.
Select "VTD Re-Learn" under "Service Programming".
Attempt to start the engine, then release the key to ON (vehicle will not start).
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF (the vehicle is now ready to relearn the password on the next ignition switch transition from OFF to CRANK).
Turn OFF the ignition, and wait 5 seconds.
Start the engine (the vehicle has now learned the password).
With the Tech 2 (scan tool), clear any DTCs.


30 Minute Learn Procedure

Turn ON the ignition, with the engine OFF.
Attempt to start the engine, then release the key to ON (vehicle will not start).
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes (the vehicle is now ready to relearn the password on the next ignition switch transition from OFF to CRANK).

Important
The vehicle learns the password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.


Start the engine (the vehicle has now learned the password).

Clear any DTCs if needed.

 

I agree with 8VETTE7 the early pcm will have different pinouts, however all isn't lost.
Anyone with a tech2 can reflash a stock tune in your 01 then have it retuned at your tuner.

 

let me see because i already have it and it already has hp tuners on it so why would i buy a new pcm and pay for another credit from hp tuner when i dont have to.

 

thank u for the help. that was my next question if that was possible since it was locked. a buddy of mine has a tech2 so that will work out.

 

thanks for info dadaroo

 

I know that 2001 and later BCMs have different pin outs, probably the PCMs are different too. If you ever need the 2001 PCM pin outs let me know, I have that FSM.