Lunds Ram

I'm looking to set my heater grid to turn on with a switch instead of the ignition, how would I go about doing it, which wires do I need to hook to the switch? Thanks in advanced for the help.

Lunds Ram

Has any one done this, any help will be appreciated.

Trebor

No, I haven't done it and since i don't drive my truck in the Winter mine are disconnected.

The two smaller wires on the relay are the DC coil operating wires. Both are normally above ground potential. One side gets +12 Volts and the other side goes to ground. If you plan on doing this use a push button switch or a momentary toggle switch. Do not use a maintained position switch. Make sure the switch circuit's +12 Volts is fused in a way that if the wire should rub through at the firewall and short out it will cause the fuse to blow.

Lunds Ram

Thanks for the info. I just figured out that the blue wires are the trigger wires, but I nees to figure out how to hook them to the switch. The only reason I'm doing this is because the grid comes on when I'm going down the road and it dimms my lights, and I don't want that.

carl48

put the switch in series with the blue wire

patdaly

Triggering grids on the early ones simply means dragging the trigger wire to ground, so all you really have to do is remove the trigger wires from the solenoids, and running a wire from them trough a switch to a suitable ground. You could use a single pushbutton to bring both in, or 2 to trigger them individually.

Lunds Ram

Thanks for all the help guys, its greatly appreciated, I didn't even thin of inturruping the ground fo it. No more randomly dimming head lights now

NE frmhnd

The grid heaters should stop cycling after a few minutes of run time. If they are cycling once it's showing any temperature at all on the gauge, they aren't working right.

Lunds Ram

I know they aren't working right, I just don't have any money to fix them, so I just put them on a switch till I can get them fixed.

NE frmhnd

Ok.