Calibration Details

In this window you can make various generic changes to your calibration. They include:

Comment your tune.
Change your VIN.
Lock/Unlock your tune.

Change your VIN

The following checks are in place when using the Change VIN function:

You must have support for the vehicle you are modifying.
You must have support for the new VIN you are trying to write.
The new VIN must be valid and must qualify for the OS currently found on the VCM.

Lock/Unlock your tune

This feature allows the VCM to be "locked" such that others may not access the VCM's contents. Once locked, the VCM will only be able to be unlocked by the VCM Suite software that locked the VCM.

NOTE: HPTuners is not responsible for the use of this feature by tuners. Tuners should advise customers that their VCM will be locked if this is the tuners business policy. Tuners should have an unlocking policy and advise customers the conditions on which their VCM will be unlocked if the circumstance arises.

TunerLock locking procedure:

Open the file you want to TunerLock in VCM Editor
Open up the Calibration Details window.
Press "TunerLock VCM" icon, the status will reflect the new TunerLock status.
Select "Flash->Write Entire VCM" or "Flash->Rewrite VIN/Tunerlock/VATS" (note this is not a risk free operation, frying the VCM is possible on PCM's when using this feature). See note below for E38 ECM's.
VCM will be reflashed...
Wait 15 secs for VCM to reset
Switch ignition OFF for 20 secs to allow VCM to save the changes
Switch ignition ON for 20 secs to verify
Switch ignition OFF for 20 secs
Engine should start and run normally

Once the VCM is locked, the VCM Editor program will require two attempts to unlock the VCM (it defaults to try the standard procedure first).

Once the VCM is TunerLocked, if additional tuning is required, the normal (and safe) "Write Calibration Only" function should be used.

To unlock the VCM, use the above procedure but press the "Unlock VCM" button instead.

E38 ECM's: You MUST use the "Rewrite VIN/Tunerlock/VATS" option at Step 4. for the TunerLock feature to be successfully programmed. Write Entire will not set the TunerLock.

NOTE: You MUST use the "Rewrite Entire VCM" or "Rewrite VIN/Tunerlock/VATS" option within the Flash Menu for the TunerLock feature to be successfully programmed. It is recommended that you only use the "Rewrite Entire VCM" or "Rewrite VIN/Tunerlock/VATS" option when performing these functions (they only need to be done once). After the VCM has been TunerLocked, if additional writing is required, the normal (and safe) "Write Calibration Only" function should be used.