Anti theft ECM pins
#1
Anti theft ECM pins
Hey there, in the process of rewiring a Jimmy that will be used offroading, curious if anyone knows the pins the ECM uses to know the anti theft checks out, my goal is to test the signal using is oscilliscope or logic analyzer and see what is happening there, then simulate the signal right before the ECM with an Arduino or another microcontroller. Then I could scrapt the entire theft system, does anyone see any issues or easier solutions? My goal is no anti theft shanagins left anywhere on the vehicle.
#3
Interestingly enough, on youtube there is some guys who have videos of disabling the vats on LS engine... I tried it on the Jimmy, (2002) it worked, simply unplugging the BCM while the vehicle is running disables the ECM from looking for the anti theft go ahead message the BCM uses. Only issues is you need to have access to a running vehicle to do this. Fortunately I did. Problem solved!
Thread
Thread Starter
Forum
Replies
Last Post
oisinirish
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
15
04-16-2009 02:47 PM