Hi everyone i been trying to search everywhere online for a solution to my problem and even tried to ask multiple people but cant seem to get an answer.i have a 2000 chevy blazer when i replaced the fuel
pump after it sitting for awhile the key didnt turn on the fuel pump so i bypassed,but then i had to replace the engine cause of a knock and after that my headlights didnt work and then transmission threw
codes(P0753,P0740,P0758,P1860)but as that happened some of my dials on my dash cluster stopped working and my key didnt turn over to crank anymore which i grounded a wire to my chassis and hooked
it to my crank fuse in my engine fuse box and hooked a toggle switch up to it,i have my grounds hooked on the back of thew block on the left and rights side and the right side of the front of the engine
but if i turn the key all the way where my lights come on the cluster and then turn the key slightly back my headlights come one which is weird to me.ive tried to replace the ignition switch but no luck.
could it be my PCM? If anyone could help i would really appreciate it.