Cruise Control Is Inoperative: Notes
WARNING: This page is about a different car, the 1989 Cadillac Allante, 1988 Cadillac Allante, and 1987 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.
The VCC brake switch and stop lamp/cruise switch are inputs to the ECM (E171 and E170 respectively). An open in either switch could result in inoperative cruise control or cruise control that intermittently will not operate. The affected models should include VCC brake input E171. See CRUISE CONTROL INOPERATIVE TEST .