I just put in a new program with efi live drove the truck for about 6 hours shut it off locked the door and went to sleep when i woke up and tryed to start it it would not start put the stock program back in and it still won't start. had to have it towed home anyone have any ideas. Just got new injectors about 5,000 miles ago.

Sounds like the passive anti-theft. Mine did the same thing and I had to take it to a diesel shop that knew how to correct it. Maybe some knows the proceedure for correcting this problem.

Good Luck
Don

Does anyone know how to reset or disable the passive theft lock on the duramax? HELP!!!

Does anyone know how to reset or disable the passive theft lock on the duramax? HELP!!!


try setting g0301 to disable in efi live

Without knowing what year of vehicle you have (create a signature), the following may or may not help:

There is a 30-minute programming procedure
that does not require a scan tool.
1.Turn the ignition switch to START, then release it to
the ON position (the engine will not start).
2. The “Security” light should be ON. After 10 minutes,
it should turn OFF.
3.Turn the ignition switch OFF and after five seconds,
repeat steps 1 and 2.
When this procedure has been done three times, turn
the ignition switch OFF. The control units will exchange
the correct commands during the next start-up attempt.
If programming is not completed correctly, either there
will be no theft protection or the system will lock in antitheft
mode and the engine won’t start.Try the programming
procedure again. Note that this will not reprogram
key recognition, only the information transmitted on the
Class 2 data link.

did the glow plug light and engine light come on? i have an '03 that is doing that to me now. truck has 101,000 miles on it and an edge ez programer