Svtweb
Full Access Member
I would doubt if there is a GPS signal broadcast over the CAN-BUS, that is most likely isolated to just the GPS computer. The VSS signal is usually the reference used by all the other devices. It would originate from the ABS computer and be sent to any of the other systems that require a speed reference. (Instrument Cluster, Radio/speed dependent volume, Body Computer/auto locking, Navigation Computer/Dead-reckoning when there is limited GPS signal.)