This is a 03 t600
Truck will not start with the key (we are jumping the solenoid to start it)
Key has 12v out when you turn switch to start, switch is good.
Wires OHM out up to the firewall I cant find wire that comes out of the key switch at the fire wall it turns into 3 wires. I can jump the wires out of the harness near the fuel filter that runs to back battery box and jump it so everything is good there. It seems my problem is from the key switch inside the cab (yes Ive changed the relays) If someone have a Wiring Diagram Id be able to track this problem down.















