Step 1 - Check the fan switch relay. The radiator fan switch relay may not be supplying power to the fan. If necessary, a replacement relay costs around $20. There are three ways to check for a bad terminal. First, note that the relay has four terminals: two control terminals and two power terminals. 1.5K. 239K views 2 years ago #fanswitch. This is a short video on how to locate, remove and test the radiator cooling fan switch on your vehicle. The cooling fan switch simply activates the Step 1: Locate underhood fuse/relay box. Visually identify the underhood fuse/relay box. The box is typically located on either the driver or passenger side of the engine compartment near the fender. Step 2: Remove the fuse/relay box cover. Remove the cover from the top of the underhood fuse/relay box. Here you will find fuse box diagrams of Jeep Wrangler 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay. See other Jeep Wrangler: Jeep Wrangler (YJ; 1987-1995)…>> We demonstrated where the radiator fan relay, radiator fan not working relay, overheats relay is located on 2016 Ford F150 but it may be helpful on: 2015 Ford F150 F-150 radiator BMW RADIATOR FAN MODULE CONTROLLER LOCATION REPLACEMENT EXPLAINED F30 F31 F32 F33 F34 316i 318i 320i 328i 335i 340i 418i 420i 428i 435i 318d 320d 325d 328d 330d 420d 425d 430d more. 1 Location. 2 Passenger compartment. 2.1 Left dashboard fuse box. 2.2 Right dashboard fuse board. 2.3 Additional box. 2.3.1 6-pin rack-mount connection box. 2.3.2 Relay and fuse box with used on-board network. 3 Engine compartment. 3.1 Box in the center of the plenum chamber. 3.2 Switchgear fuse board. 4 Luggage compartment. 2. 3. 4. 5. In a little follow on from my previous thread How the heck do i access the relay for the fan in the front bumper? Also does it have a fuse? My manual seems to say not? It doesnt run at all but i ca. 7Pop0p0.