2001 FLD starting issues.

From factory, says you have a Cummins N14 and you have a push-to-start switch.
Your dash switch panel:



Did you also check your mag switch? Maybe you're calling that your relay...? Here is some wiring--hopefully you are familiar.

Here is the circuit table:



Here is your wiring for the solenoid:



Here is the mag switch wiring:



Check circuits: 14, 74, 82

Your setup should look something like this:



Here is your mag switch. Maybe the ground is not connected well enough (should be on your firewall):




Here should be a rough schematic with everything hooked up. I think your system is a no thermal switch:





Please post your findings and updates.

 

Warning lights should come on, when keys turned on. If not ecm isn’t getting juice. I think it should still crank though. I can’t make heads or tails from wiring diagrams myself. But a test light, on the selinoid would tell a lot. A bad ground at the small ground wires on the frame, near battery box, Along with checking the small hot in the battery box. Check the online fuse. Those two, power the ecm, and dash warning lights. My guess is a broken wire from the button to selinoid, at the selinoid. Both are very common problems. If it’s the problem, should be able to jump the selinoid, and make it crank. Doing so puts 12 volts to starter, and may overheat it, or damage it. I’ve done it to mine plenty of times. I’m sure I shortened the life of the starter. But it still works, and it’s 20 yrs old

 

2 separate problems. Little wires for ecm in battery box are causing it to die. Starter button wire to selinoid is keeping it from starting. Try to jump the selinoid, with key on, see if it will crank. Also clean little ground wire on frame near batteries. Check fuse for good luck.

 

Those 2 wires from battery to ECM should be fused.