1988 jeep comanche electrical problems

[Dillon.Powers]

ok so driving the comanche yesterday, i adjusted a heater control wich i think created a short, truck immideatly shut down and power features such as blinkers emergency flashers headlights interior lights ect do not work, No spark or no fuel pressure at the rail. as well Engine does however turn over. (will not fire) any suggestions?

 

[Bart]

Have to go back to the old CPS as my first suggestion on the starting. I know it's basic but have you checked fuses?

 

[Kiel]

sorta sounds like ignition switch

 

[phatfoto]

What year did they do away with the dreaded C101 connector above the brake booster? If you have that, take it apart, clean it and reinstall. Since you seem to have a few issues all at once. If yours passes through the firewall like my 90 did, disregard...