Use the scan tool data values under the following conditions:
| • | The Powertrain On-Board Diagnostic (OBD) 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 Park |
| • | Closed Loop operation |
| • | Accessories OFF |
| • | Brake pedal not applied |
Scan Tool Parameter | Data List* | Units | Typical Data Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1-2 Solenoid | F0,F1,F2,F3,F4 | On/Off | On | ||||||||||
1-2 Solenoid open/Short to GND | F0,F2 | Yes/No | No | ||||||||||
1-2 Solenoid Short to Volts | F0,F2 | Yes/No | No | ||||||||||
2-3 Solenoid | F0,F2,F3,F4 | On/Off | On | ||||||||||
2-3 Solenoid open/Short to GND | F0,F3 | Yes/No | No | ||||||||||
2-3 Solenoid Short to Volts | F0,F3 | Yes/No | No | ||||||||||
A/C Clutch | F0 | On/Off | Off | ||||||||||
Brake Switch | F0,F1 | Open/Closed | Closed | ||||||||||
Cruise | F0 | Enabled/Disabled | Disabled | ||||||||||
Current Gear | F0,F1,F2,F3,F4 | 1, 2, 3, 4 | 1 | ||||||||||
ECT | F0,F1 | °C (°F) | 85-105°C (185-220°F) (varies with the outside temperature) | ||||||||||
Engine Run Time | F0 | Hour/Minute/Second | Time since startup | ||||||||||
Engine Speed | F0,F1,F2,F3,F4 | RPM | 700 RPM | ||||||||||
Engine Torque | F0 | N·m (lb ft) | 14-22 N·m (10-16 lb ft) | ||||||||||
Gear Ratio | F0,F1,F2,F3,F4 | 0.00 | 2.9 | ||||||||||
Hot Mode | F0,F1 | On/Off | Off | ||||||||||
Ignition Voltage | F0 | Volts | 12-14V | ||||||||||
Shift Mode | F0 | Normal/Performance | Normal | ||||||||||
Speed Ratio | F0,F2,F3,F4 | 0.00 | 8.0 | ||||||||||
TCC Duty Cycle | F0,F1 | % | 9% | ||||||||||
TCC Duty Cycle Open/Short to GND | F0,F1 | Yes/No | No | ||||||||||
TCC Duty Cycle Short to Volts | F0,F1 | Yes/No | No | ||||||||||
TCC Enable | F0,F1 | Yes/No | No | ||||||||||
TCC Enable Open/Short to GND | F0,F1 | Yes/No | No | ||||||||||
TCC Enable Short to Volts | F0,F1 | Yes/No | No | ||||||||||
TCC Slip Speed | F0,F1 | RPM | Same as Engine Speed | ||||||||||
TFT Sensor | F0,F1,F2 | Volts | 1.95-2.80 Volts (varies with the outside temperature) | ||||||||||
TP Angle | F0,F1,F2,F3,F4 | % | 0% | ||||||||||
TP Sensor | F0,F1,F2,F3,F4 | Volts | 0.7 Volts | ||||||||||
Traction Control | F0 | Inactive/Active | Inactive | ||||||||||
Trans. Fluid Temp. | F0,F1,F2 | °C (°F) | 70-90°C (158-194°F) (varies with the outside temperature) | ||||||||||
Transmission OSS | F0,F1,F2,F3,F4 | RPM | 0 RPM | ||||||||||
Vehicle Speed | F0,F1,F2,F3,F4 | Km/h (mph) | 0 Km/h | ||||||||||
*Data List Legend
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