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Quick question. Do these relays (circled) only control the fans? As in, if I’m running aftermarket fans off of my haltech ecu, do I need these? I was going to remove them but I was afraid that they may control something else. Thanks for any help!
Soo I cut the fan relays out and the wires/plugs going to the fans annnd there are more wires going into the relays than the fans and it makes me nervous that I cut something I still need lol
It's a pretty simple relay circuit. Though if you are using aftermarket fans that's a good source for power and whatnot.
Dale
So the chase bays radiator set up comes with a fan relay harness with thermoswitch, I would like it to receive power when the ignition is on and shut off when the car is off. Am I right in thinking, utilizing the B/Y colored wire in the diagram would give me what I’m after?
IIRC, the 4 fan relays have a small harness that connects to the front harness, so cutting wires is probably not required. Same idea as the ignition harness/engine harness.
Harness is likely already cut from installing the radiator in that location.
If you are using the B/Y wire, that's ok as long as all it's doing is activating the relay. If you are looking for a factory wire to actually provide the high amps to the relay to then go to the fans, use the L wire.
Harness is likely already cut from installing the radiator in that location.
If you are using the B/Y wire, that's ok as long as all it's doing is activating the relay. If you are looking for a factory wire to actually provide the high amps to the relay to then go to the fans, use the L wire.
the higher amps is probably the better choice. Will the L wire “turn off” when the ignition is off? From the diagram it looks to be before the ignition.
the higher amps is probably the better choice. Will the L wire “turn off” when the ignition is off? From the diagram it looks to be before the ignition.
^The L wire it will be +12V hot at all times, unless the 60A fuse or 120A fuse blows. So your read of the circuit diagram is correct.
This may be a little off topic....but for the life of me I do not understand the wiring diagram on the connection of the relays to the harness. I see the wires on the relays are colored, do I match these wires to the same color on the harness?
03-05-23, 11:09 AM
