02-09 Vortec 4.2L I-6 Engine and Drivetrain
Greetings.
Have a 2006 Trailblazer LS with the 6 cylinder. Got a preprogrammed replacement pcm to replace a faulty unit.
Swapped the old unit out and new one in. Trying the key "learn" process and having issues. When I turn the key to try and crank the engine, it should turn over, right...