GM Service Manual Online
For 1990-2009 cars only
CPP Learn Status: This parameter displays the state of the clutch pedal position sensor learn status. With the clutch pedal in the fully applied position the scan tool will display one of the following parameters: Not Learned, In Process, Complete, Fail - Low Volt, Fail - High Volt, and Fail Moving.

CPP Learned Apply Position: This parameter displays the state of the clutch pedal position sensor learned apply position. With the clutch pedal in the fully applied position the scan tool will display 0 volts.

CPP Learned Release Position: This parameter displays the state of the clutch pedal position sensor learned release position. With the clutch pedal in the fully applied position the scan tool will display 5 volts.

CPP Sensor: This parameter displays the state of the clutch pedal position sensor circuit input. The scan tool will display 5 volts or 0 percent with the clutch pedal fully released and 0 volts or 100 percent with the clutch pedal fully depressed.

CPP Switch: This parameter displays the state of the clutch pedal switch circuit input. The scan tool will display APPLIED when the clutch pedal is depressed, and RELEASED when the clutch pedal is released.

Vehicle Speed Sensor: This parameter displays the speed at which the vehicle is traveling. The scan tool displays vehicle speed as kilometers per hour (km/h), miles per hour (mph). The vehicle speed is calculated based on the input signal from the vehicle speed sensor.