Use the scan tool data values under the following conditions:
| • | The Diagnostic System Check - Vehicle is complete. |
| • | The On-Board Diagnostics are functioning properly. |
| • | No DTCs are present. |
The values below represent a typical display recorded from a properly functioning system.
Important: Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used in this manual for diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.
Scan tool values below were recorded under the following conditions:
| • | Engine at idle |
| • | Upper radiator hose hot |
| • | Closed throttle |
| • | Transmission in Neutral |
| • | Closed Loop operation |
| • | Accessories OFF |
| • | Brake pedal not applied |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
CPP Learn Status | F0 | Not Learned, In Progress, Complete, Fail - Low Volt, Fail - High Volt, Fail Moving | -- |
CPP Learned Apply Position | F0 | Volts | 0 volts |
CPP Learned Release Position | F0 | Volts | 5 volts |
CPP Sensor | F0 | Volts | 5 volts |
CPP Sensor | F0 | Percentage | 100% |
CPP Switch (If Equipped) | F0 | Applied/Released | Released |
Vehicle Speed Sensor | F0 | km/h (mph) | 0 |
Data List Legend F0: Engine Control Module | |||
