There are a couple of things that will disable cruise, first is brake switch, or parking brake switch.
Next would be the gear selector.
Also the car would need to be in closed loop, that is the engine must be at temp. If thermostat is bad, it will not heat up and cruise will not work.
Even thought you see no powertrain codes you may have a body, or chassis code. These can be read by trusted garage.
Wednesday, September 29th, 2010 AT 8:56 AM