Clutch Switch: Description and Operation

Clutch Pedal Position (CPP) Switch:

PURPOSE
Informs the Powertrain Control Module (PCM) that the clutch is either engaged or disengaged. The PCM uses this input as a factor in determining engine load. Adjustments to air/fuel mixture, idle speed, ignition timing, fuel pressure, purge flow and A/C cutoff are then made accordingly.

OPERATION
This is an ON/OFF switch. Contacts are either open (pedal released) or closed (pedal depressed) depending on clutch pedal position.