Let's say you have a 2013 Fort 250 Lariat pickup. If someone were to pull the fuses out of the truck (unbeknowst to the owner) and the owner tried to drive the truck, could it damage the PCM to the point where it had to be replaced? Strange question I know, but it is a real life situation. Thank you.
If someone were to pull the fuses out of the truck
and the owner tried to drive the truck
Fuses are installed as protective devices. They are there to help protect your truck's various circuits. When a single fuse is removed, that circuit is left 'open' and won't work. So when multiple fuses are removed, each of those circuits are open and none of them will work.
If all the fuses were removed from your truck, it wouldn't crank or run, at all.
As long as nothing was shorted/damaged during the fuse removal.. and all of the removed fuses are replaced, the truck will be fine.
Let's say you have a 2013 Fort 250 Lariat pickup. If someone were to pull the fuses out of the truck (unbeknowst to the owner) and the owner tried to drive the truck, could it damage the PCM to the point where it had to be replaced?
To my knowledge, no. Pulling fuses will simply interrupt the circuit between whatever the PCM is communicating with, and the PCM itself. Both components are still fundamentally fine.
What will damage or destroy your PCM is replacing fuses that have a lower amperage limit with a higher amperage limit. If a short develops in the circuit, the factory fuse is designed to sacrifice itself instead of the extremely expensive PCM. If you put in a fuse that's rated higher than the fuse that came in the truck from the factory, the PCM itself can blow.
