72 duster jamb switch

My 72 duster wiring harness has a 3 pin jamb switch , but only 2 wires yellow an a black , on passenger side I only have a yellow wire that has a spade connection , of course the jamb switches were long gone as this was a project I am working on , is this correct wiring ? The wiring diagrams show 3 wires on drivers a 2 wires on passenger , am I missing something ? Also the drivers side appeared factory taped as I removed trying to trace wires still only shows 2 wires there,,