Does anyone have the speedometer schematic for the cluster or if someone has the whole wiring diagram on pdf they could email me that would be great.. Speedometer does not work vss from diff is working and signal is coming to the abs module in engine bay. Trying to figure out the rest of the signal path to the speedometer. I have searched the forum and google. I can find a couple schematic but none that match my cluster.. thanks in advance

 

VSS data is generated by the OSS (on the transmission) which feeds into the PCM. The speedometer data is then transmitted via the SCP bus to the cluster for display. The rear diff and ABS sensors are NOT involved with VSS on this model.

Is the PCM getting valid VSS data? If the transmission shifts normally, then it is.

Have you put the cluster into dealer test mode? You can see what it's getting from the PCM that way.

 

The transmision does not shift correctly. Everything on the cluster works except speedometer. If sweeps when you turn key on. I am assuming a wire got cut under the dash as this was a transplant into a 65' f100 which is why I was asking for schematic. Can I check the SCP bus? All wiring for engine and transmission where completely transferred. The only wiring that was trimmed down was under the dash GEM, heater controls, etc

 

2002 f150

Don't have answers, but curious. What all, exactly, was transplanted? Not clear what "trimmed down" means.