You can do a quick check to see if it is working. With the ign switch on, connect a jumper wire from the KD terminal of the relay to ground, if the solenoid clicks the solenoid and relay circuits are OK. If not we need to go to plan B.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine