| Table 1: | Scan Tool Data List (7.8L) |
| Table 2: | Scan Tool Data List (8.1L) -- PID Supported |
| Table 3: | Scan Tool Data List (8.1L) -- PID Unsupported |
Use the scan tool data values under the following conditions:
| • | The Diagnostic System Check 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 Data List (7.8L)
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value | ||||||
|---|---|---|---|---|---|---|---|---|---|
Clutch Pedal Switch | F0 | Applied/Released | Released | ||||||
Vehicle Speed Sensor | F0, F2 | km/h (mph) | 0 | ||||||
*Data List Legend
| |||||||||
Scan Tool Data List (8.1L) -- PID Supported
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Clutch Pedal Switch | F0 | Applied/Released | Released | ||||||||||||||||
Vehicle Speed Sensor | F0, F2 | km/h (mph) | 0 | ||||||||||||||||
*Data List Legend
| |||||||||||||||||||
Scan Tool Data List (8.1L) -- PID Unsupported
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Clutch Pedal Switch | F0 | Applied/Released | Released | ||||||||||||||
Vehicle Speed Sensor | F0, F2 | km/h (mph) | 0 | ||||||||||||||
*Data List Legend
| |||||||||||||||||
