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Update; After I got into the connector I found that I had already bypassed the #17 connector. Apparently the #21 (BK/GN) is also ABS sensor (something i just learned today) but the pins inside the connector look perfect, no corrosion at all. I've checked for insulation chafing and found none. I changed the instrument cluster, changed the ABS sensor (paid someone to do that so maybe it wasn't done correctly) and I now have no idea what is causing the problem. I think my connector bypass job is good. What else could it be?! I have fixed everything else on this truck, except for the windshield washer problem, and it drives like a brand new truck aside from the stupid speedometer!!! I'm giving myself 6 months to get everything working on this truck or I'm selling it.
I've finally had enough of the intermittent speedometer. I've narrowed down the problem to the corroded terminals/connectors in the plug under the drivers seat. I'm going to bypass those connectors like I did with the fuel pump and a couple other circuits.
My problem is that I can't find the diagram I used before so I don't know which wires in the plug are the correct ones for the sensor in the diff housing.
I tried the wiriing diagrams here but the list doesn't show anything past the 90's models and I have a 2000.
Where can I find a diagram of the C309 harness plug under the seat? I'm trying to do the repair now and I can't figure it out without that diagram.
I've finally had enough of the intermittent speedometer. I've narrowed down the problem to the corroded terminals/connectors in the plug under the drivers seat. I'm going to bypass those connectors like I did with the fuel pump and a couple other circuits.
My problem is that I can't find the diagram I used before so I don't know which wires in the plug are the correct ones for the sensor in the diff housing.
I tried the wiriing diagrams here but the list doesn't show anything past the 90's models and I have a 2000.
Where can I find a diagram of the C309 harness plug under the seat? I'm trying to do the repair now and I can't figure it out without that diagram.
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