Ned help understanding factory Wiring diagram (oil pressure switch)

[PaulRV6]

Hi guys, I hope this isn't a stupid question but looking at the 86/87 factory wiring diagram in the injector and fuel control section it shows the oil pressure switch as having two wires. Pnk/blk for "A" term and gray for "C" terminal. Why doesn't it show the "B" terminal which should be tan? What am I not seeing in the wiring diagram? Is there some other diagram that shows this? Thanks

 

[pacecarta]

because it doesn't pertain to fuel , its for low oil pressure low idiot lamp , NC contact opens above 4psi to turn lamp in dash off , the fuel pump wire is NO (normally open) and closes above 4psi oil pressure to provide 12v to fuel pump

 

[salvageV6]

Page 8A-80-2 shows the diagram in the "Indicators" section of the dash wiring diagrams.
The service manual separates things like that.

 

[PaulRV6]

Is there someplace I can look for this? Thanks for the help.

 

[pacecarta]

its in the service manual

 

[PaulRV6]

Oh wow, thanks pacecarta. I don't have the service manual so didn't have access to this diagram. Does the service manual show any wiring diagrams for the MAP sensor? All I have is wiring for the ESC module. Thanks kindly.
paul

 

[pacecarta]

these diagrams are easier to follow

 

[PaulRV6]

Those are fantastic. Thank you very much. Btw, where did you find something like those? I will definitely print those out.
Can you help me identify this connector? It has a diode or resistor across both terminals. Thanks man, really appreciate it.

 

[pacecarta]

its a diode , thats the ac compressor clutch connector