Well it seems that the VSS decided to die on my car recently, and I'm trying to diagnose what the actual problem is.

The VSS I used has a green box, that I believe is from an S10, probably between 1989 and 1992.

It looks a lot like this:


I don't have a spare one of this type, I do however, have two with yellow boxes, that from my Google searching seem to be from something earlier, perhaps a 1985 F-body, or similar.

They look like this:


Unfortunately I can't find the pinout for the yellow boxed VSS, and the connectors are different, so I can't just plug one in place of the other, which was my original plan.

Does anyone have a cluster with one of these still attached and can check the pinout, or know the pinout offhand?