You need to change your oil (that is what causes p1345 normally), but these are not cruise control DTCs. There are only three main parts of your cruise control system: the PCM (vehicle's computer), the function control switches and the stop lamp switch assembly. Since there are no trouble codes for your vehicle and I assume it is running fine, this eliminates a faulty PCM. You said the brake lamps and signals work fine so this also eliminates the stop lamp switch assembly. The function control switch is all that is left and must be at fault. Ensure all wiring is good and tight at the switch assembly. If it is then switch assembly needs replaced.
Saturday, August 29th, 2009 AT 1:16 PM