get out a multi meter and verify you get the connections and result you want
but
Terminal
Which Circuit?
Definition
86
Low current (control)
Relay coil + (power input)
85
Low current (control)
Relay coil – (ground)
30
High current (load)
From battery +
87
High current (load)
Output to device, normally open, pulled closed when coil is energized
87a
High current (load)
Only used on single-pole double throw (SPDT) “changeover” relays. Output to other device, normally closed, pulled open when coil is energized
Excellent. The ride seems to get a little hot at idle. I’m suspecting the electric fan’s thermostat isn’t going low enough. The EFI would probably be more precise.