S-Type (X200) V8-4.2L (2005)
Brake Switch (Cruise Control): Description and Operation
VIN Range: M45255->N52206
Brake Pedal Position (BPP) Switch
If the brake pedal is activated while the speed control system is active, the ECM receives a signal from the brake pedal position switch. This will cancel
speed control and allow the throttle blade to return to the position as demanded by the accelerator pedal.