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Install High-Current Fan Relay

9:39
35:47
37.2K views

At 9:39 in

Logan Learns How To Wire Relays! LSA Monte Carlo & Turbo Escalade Test Drive

What happens here

The Monte Carlo uses a high-amperage 97 Thunderbird fan, which overloads the existing small relay in the standalone harness. A new, larger relay is needed. The presenter explains that a relay uses a small electrical signal to trigger a larger current path, preventing damage to sensitive components. He demonstrates connecting the fan's power wire to the output of the new relay and connecting the original harness's fan signal wire to the new relay's trigger input. The large 12V constant power for the fan will come directly from the battery terminal, ensuring enough power and bypassing the harness's smaller capacity.

Goal: Provide sufficient power for the high-amperage fan and protect the original harness.

Tools and materials

  • Battery terminal lug — Connecting large gauge wire to battery
  • Crimping tool — Crimping terminals
  • High-current relay — Supplying power to the fan
  • Wire — Connecting relay to battery
  • Wire cutters — Cutting wires
  • Wire strippers — Stripping wire insulation

What they say

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those shifters just have to pick your battles gotta find the one that's the right size for the wire and for the whole is that the right wire size no how would i know you look at the hole you can see the gates the awg 22 16 15 14. the smaller the number the smaller the wire the bigger the number the smaller the wire what you can do to be trick is cut the pink piece off and then do the black heat shrink instead feed it down through there do you want me to plug this thingy back in yep i'll leave that down like that now you can figure out how long that'll need to be leave a little more slack in it yeah you always like kind of measure no it needs to be longer yeah so mark it like that then cut like an extra inch on it you kind of hold it in there and then put the wire in if you need to [Music] yeah you probably need a new one now that was hard yeah hey it's still fine i think will it fit in there i think so give it a shot if it doesn't then you can do another one what you're experiencing right now is what every single person who has ever done this so close it's my hands aren't strong enough pretty dang perfect now we're gonna do fan relay for those of you who don't know what a relay is or how it works is this thingy basically uses a smaller electrical circuit to trigger a bigger one to keep large amounts of power away from things that can't handle it to describe it like an idiot that's about all i know so instead of those fans take two fan that fan takes too much power for the 30 amp feed that it has oh yeah that was the right size knot yeah that that weird skinny one cool because i have another box though when tear apart extra oem i throw it into it that's cool thank you thank you rob has everything we need friend can't have a random nut we can't find oh let's ask rob and he has it he just does he owns the building so it's pretty cool to have a building owner that doesn't suck yeah he's cool yeah about what i think the power feed for the fan on that thing logan has a really bad habit of fidgeting with things that make noise while she's filming me because i'm so boring no i just always have to be doing something i'm just too like adhd to like not be doing something well your task could be like dynamic camera work like wow yeah you look so good like this thanks you to give everybody vertigo yeah they're getting all pissed off okay made me motion sick yeah rick and that that actually happens but the power feed for the fans from that thing cannot handle the amount…

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