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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Is that pic in the corner of the engine bay on the drivers side? That's what it looks like on my truck but ecm looking box isn't the same with me. Where would mine be at? Sorry I'm not much help with this topic but electrical isn't my strong point.
I tapped into the fuel pump feed... To power the thermostat... Which controls a relay on the ground of the e-fan, which got a direct powered (fused) feed from the battery.
I figured that way the fan would get plenty of power from the battery, which gets spent by the fan so the relay isn't over-taxed.