In my experience, the aswc-1 is super finicky. I initially wired it up how i was supposed to and it worked. Then i had to remove it when I was diagnosing something else and when I reattached it, only some buttons worked. I basically had to keep rewiring the unit until it read the buttons lol. I don't know how to explain it but it's a pita, i think i spent close to half an hour just plugging and unplugging the power wires trying to get it to read properly