I need sum help i changed my (VSS) and my speedometer is still not working and my D4 light is still flashing. I looked up the CEL code and the TCM codes. I got the VSS on ebay can anyone give me sum help.

CEL=20
TCM=4

 

You could assume the VSS is good (I'd test it to be sure). From there you'll need to check the connections and wires. The vss is good, why isn't the signal making it to the TCU......without year and that, about all I got.

4-Vehicle Speed Sensor open or shorted - No signal from speedometer.