I see you're also discussing this issue with CARADIODOC on a separate thread. I would suggest you continue on that thread with this discussion. But yes, if the Yellow wire and the Black/Tan both have 12v with the key on, and your certain the Black/White wire has good continuity to ground, then it must be the relay or a poor connection at the relay. Measure the resistance between the Black/White wire and the negative battery terminal. It should be less than 1 ohm.
Tuesday, November 24th, 2020 AT 8:52 AM