Code P075, VSS Signal Interrupt: Action
WARNING: This page is about a different car, the 1995 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
PCM turns on MIL, disables TCC and freezes transaxle in current gear. If failure occurs 10 times in 10 seconds, code will remain current for the entire ignition cycle.
Courtesy of GENERAL MOTORS CORP.