Turns out it was the switch. First proved by the lack of automatic rear wiper when reversing. Then proved by bypassing the switch with a jumper wire.
The 12 volts I was reading was actually 12 millivolts...I'll put my spec's on next time, silly small screen.
The 12 volts I was reading was actually 12 millivolts...I'll put my spec's on next time, silly small screen.
