Would problems with the pcm on a 01 deville cause a p0502 code?

Question

Replaced vss no problem for about 2 month speedometer quit code p0502 could something other than vss cause this

Answer 1

P0502 VSS speed sensor circuit malfunction

The circuit connection even the harness, There are times sensor do code up and it was not the sensor but the disconnection of that sensor and a reconnection to the sensor resolved the issue. by creating a better contact it happens .