yes,
there are 2 fuses.(before the relay, nothing after) If they are not labeled, use a test light and with ign on, check all fuses for power on both sides. if test lights only lights up on 1 side of the fuse, it is blown. typical relay uses 4 wires. 1 constant 12v power, 1 ignition 12v power, pcm controls ground circuit, output to the device.