Will not crank unless bypass relay

[jedwilli]

I replaced the ignition switch - still no joy. To be clear, a hot wire to the solenoid and it fires right up. Proves starter and solenoid are fine. I've checked the neutral switch as well - it appears to be working. Any ideas I would appreciate it.

-jw

[jedwilli]

I also traced the wire from the solenoid to the fuse box and can use a jumper at the fuse box. It starts at that time. Checked all the fuses multiple times. Could it be the main computer?

[jedwilli]

Anyone have a suggestion?

[Planohummer]

look under the dash, around steering column to see if anyone has removed either an alarm or a remote start system. ck purple and orange wires specifically.

[jedwilli]

Nothing that I can tell. I've had this thing for a couple of years - it worked great until last week when I backed it into the driveway - then this behavoir started. Can you or anyone give me a wiring schematic for the igntion circuit. It seems like something has been cut or something. I did take the fuse box cover off (under the hood) and I had a nice little mouse nest - but I do not see any chewed wires. I'm at a loss.

-jw

[Planohummer]

take the fuse box off and look at underside-there's plenty of nesting material for them to harvest.

[jedwilli]

Ii did take the fuse box off and there were a few wires with the insulation chewed... none of the wires were broken though. I repaired the insulation (electrical tape) but still same issue. No blown fuses though. I've swapped the relays and the ignition switch. Any additional ideas? I'm at a loss.

Truck runs fine when I start it using my jumper wire - makes me think computer is fine. I'm running out of ideas.

-jw