Ground triggered Relay for Terminator X max fan control
Channel: Lets Boost it
Date: 2021-01-20

Wiring & theory for hooking up a relay which will be ground triggered by the Holley Terminator X-max ecm for L.S.  swapped powered cars. This video shows the difference between positive triggered and ground triggered relays to turn on and run devices in automotive applications. In this case specifically the Terminator X-max fan control, which requires a ground triggered relay instead of a positive triggered relay to turn on our fan or fans. The grey with yellow stripe controls fan number  1. The grey with red stripe controls fan number 2. If desired the fans can also be changed to relay positive triggered via the Terminator X-max  software. You can see the fan coming on and functioning as it should when controlled by the ECM when the coolant temp gets to the trigger point at the following video link... https://youtu.be/KzRU0tBjp4s