I was cleaning up my engine bay this weekend while doing some other work on the truck.

There was a massive relay bolted to my battery box that didn't have a purpose anymore so I pulled it out and disconnected the positive battery cable from it and wrapped up the wires going into the wire harness.

As soon as I started the truck I had a P0541 code (Low Voltage on the #1 Intake Air Heater Relay).

Well I guess I know what that massive relay was used for now, but since it wasn't connected anymore and I don't have a grid heater is there a way anyone knows of that I can get around having to reinstall this?

If I supply one of the leads with +12v, would that satisfy it?

I can poke around a bit, but I was hoping maybe someone has some experience in this?