Hello Scotty. I have a 1996 Lincoln Town Car 4.8L with around 200K with automatic transmission. There are no codes.
The issue is that the A/C Blower, Interior Lights, Power Windows work when the key is in the ACC position, but as soon as you turn the engine on, and is running, none of those accessories work and turn on/off sporadically. I have a new alternator, battery is good (both have been tested good), and I just installed a new Ignition Switch yesterday, but still have the same issue.
Please Help. Thank you Scotty.
Well they all work until you turn it on so either you got a bad ignition switch or you're wiring has a problem. Since it gets power on the accessories but not the whole way. Normally that's the electrical part of the ignition switch, not the mechanical part. Just the electrical part. But if not that then you'd have some kind of wiring problem from the last position of the switch down to what is powered. But that doesn't really make too much sense. I I really think it's in your switch assembly
