Scan Tool Data List
Use the Scan Tool Data List 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 PARK
- Closed Loop Operation
- Accessories OFF
- Brake pedal not applied
Scan Tool Data List
| Scan Tool Parameter | Data List* | Units Displayed | Typical Data Value |
|---|---|---|---|
| 1-2 Shift Error | F2,F6/F0 | Seconds | Varies |
| 1-2 Shift Time | F0,F2,F6/F0 | Seconds | Varies |
| 1-2 Sol. | F0,F2,F3,F4 | On/Off | On |
| 1-2 Sol. Open/Short to GND | F2 | Yes/No | No |
| 1-2 Sol. Short to Volts | F2 | Yes/No | No |
| 1-2 TAP Cell (4-16) | F6/F0 | kPa/PSI | Varies |
| 2-3 Shift Error | F3,F6/F1 | Seconds | Varies |
| 2-3 Shift Time | F0,F3,F6/F1 | Seconds | Varies |
| 2-3 Sol. | F0,F2,F3,F4 | On/Off | Off |
| 2-3 Sol. Open/Short to GND | F3 | Yes/No | No |
| 2-3 Sol. Short to Volts | F3 | Yes/No | No |
| 2-3 TAP Cell (4-16) | F6/F1 | kPa/PSI | Varies |
| 3-4 Shift Error | F4 | Seconds | Varies |
| 3-4 Shift Time | F0,F4 | Seconds | Varies |
| 4WD | F0 | Enabled/Disabled | Disabled |
| 4WD Low | F0 | Enabled/Disabled | Disabled |
| A/C Clutch | F0 | On/Off | Off |
| Commanded Gear | F0,F1,F2,F3,F4,F5 | 1,2,3,4 | 1 |
| Cruise | F0 | Enabled/Disabled | Disabled |
| Current TAP Cell | F6/F0,F6/F1 | 0-16 | Varies |
| ECT | F0,F1 | °C (°F) | Varies |
| Engine Run Time | F0 | Hr:Min:Sec | Varies |
| Engine Speed | F0,F1,F2,F3,F4,F5 | RPM | 600-800 |
| Engine Torque | F0,F1 | N.m (lb ft) | 10 |
| Gear Ratio | F0,F1,F2,F3,F4 | Ratio | 3.98:1 |
| Ignition Voltage | F0 | Volts | 13.5-14.5 |
| Last Shift Time | F0 | Seconds | Varies |
| PC Sol. Actual Current | F0,F5 | Amps | 0.92 amps |
| PC Sol. Ref. Current | F0,F5 | Amps | 0.92 amps |
| PC Solenoid Duty Cycle | F0,F5 | Percent On Time | Varies |
| Power Take-Off | F0 | YES/NO | NO |
| Speed Ratio | F0,F1,F2,F3,F4 | Ratio | 8.00:1 |
| TCC Brake Switch | F0,F1 | Open/Closed | Closed |
| TCC Duty Cycle | F0,F1 | Percent | 0% |
| TCC Duty Cycle Open/Short to GND | F1 | Yes/No | No |
| TCC Duty Cycle Short to Volts | F1 | Yes/No | No |
| TCC Slip Speed | F0,F1 | RPM | +/- 150 |
| TFP Sw. | F0 | Park/Neutral, Reverse, Drive4, Drive3, Drive2, Drive1 or Invalid | Park/Neutral |
| TFP Sw. A/B/C | F0 | HI/LOW | HI/LOW/HI |
| TFT Sensor | F0,F1,F5 | Volts | Varies |
| Tow/Haul Mode | F0 | Active/Inactive | Inactive |
| TP Indicated Angle | F0,F1,F2,F3,F4,F5 | Percent | 0-10% |
| TR Sw. | F0 | Park, Reverse, Neutral, Drive, Intermediate, Low, and Invalid | Park |
| TR Sw. A/B/C/P | F0 | HI/LOW | LOW/HI/HI/LOW |
| Traction Control | F0 | Active/Inactive | Inactive |
| Trans. Fluid Temp. | F0,F1,F5 | °C (°F) | Varies |
| Trans. Slip Counter | F0,F1 | 0,1,2 | Counts |
| Transfer Case Ratio | F0,F2,F3,F4 | Ratio | 3.22:1 |
| Transmission Hot Mode | F0,F1 | On/Off | Off |
| Transmission ISS | F0,F1,F2,F3,F4 | RPM | 600-800 |
| Transmission OSS | F0,F1,F2,F3,F4 | RPM | 0 |
| Turbine Speed | F0,F1,F2,F3,F4 | RPM | 600-800 |
| Vehicle Speed | F0,F1,F2,F3,F4 | km/h (mph) | 0 |
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*Data List Legend
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