Scan Tool Data List
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Use the scan tool data list under the following conditions:
- The Diagnostic System Check - Automatic Transmission 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
Transmission Scan Tool Data List (2004 Y-Car)
| Scan Tool Parameter | Data List* | Units Displayed | Typical Data Value |
|---|---|---|---|
| 1-2 Shift Error | F2, F7/F0 | Seconds | Varies |
| 1-2 Shift Time | F0, F2, F7/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) | F7/F0 | kPa/Psi | Varies |
| 2-3 Shift Error | F3, F7/F1 | Seconds | Varies |
| 2-3 Shift Time | F0, F3, F7/F1 | Seconds | Varies |
| 2-3 Sol. | F0, F2, F3, F4 | On/Off | On |
| 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) | F7/F1 | kPa/Psi | Varies |
| 3-2 Downshift Sol. | F0, F5 | On/Off | On |
| 3-2 Sol. Open/Short to GND | F5 | Yes/No | No |
| 3-2 Sol. Short to Volts | F5 | Yes/No | No |
| 3-4 Shift Error | F4 | Seconds | Varies |
| 3-4 Shift Time | F0, F4 | Seconds | Varies |
| A/C Clutch | F0 | On/Off | Off |
| Commanded Gear | F0, F1, F2, F3, F4, F5, F6 | 1,2,3,4 | 1 |
| Cruise | F0 | Enabled/Disabled | Disabled |
| Current TAP Cell | F7/F0, F7/F1 | 4-16 | Varies |
| ECT | F0, F1 | °C (°F) | Varies |
| Engine Run Time | F0 | Hr/Min/Sec | Varies |
| Engine Speed | F0, F1, F2, F3, F4, F5, F6 | RPM | Varies |
| Engine Torque | F0, F1 | N.m (lb ft) | Varies |
| Estimated Gear Ratio | F0, F1, F2, F3, F4 | Ratio | 8.00:1 |
| Ignition Voltage | F0 | Volts | 12-14 Volts |
| Last Shift Time | F0 | Seconds | Varies |
| PC Sol. Actual Current | F0, F6 | Amps | Varies (0.1-1.1 amps) |
| PC Solenoid Duty Cycle | F0, F6 | Percent | Varies |
| PC Sol. Ref. Current | F0, F6 | Amps | Varies (0.1-1.1 amps) |
| Speed Ratio | F0, F1, F2, F3, F4, F5 | 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 Enable Sol. | F0, F1 | Yes/No | No |
| TCC Enable Open/Short to GND | F1 | Yes/No | No |
| TCC Enable Short to Volts | F1 | Yes/No | No |
| TCC Slip Speed | F0, F1 | RPM | +/-50 RPM from Engine Speed |
| 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, F6 | Volts | Varies |
| Torque Converter Efficiency | F0, F1, F2, F3, F4 | Ratio | .00:1 |
| TP Indicated Angle | F0, F1, F2, F3, F4, F5, F6 | Percent | 0-10% |
| TR Sw. | F0 | Park/Neutral, Reverse, Drive4, Drive3, Drive2, Drive1 or Invalid | Park/Neutral |
| TR Sw. A/B/C/P | F0 | HI/LOW | LOW/HI/HI/LOW |
| Trans. Fluid Temp. | F0, F1, F5, F6 | °C (°F) | Varies |
| Trans. Slip Counter | F0, F1 | 0, 1, 2 | 0 |
| Transmission Hot Mode | F0, F1 | On/Off | Off |
| Transmission OSS | F0, F1, F2, F3, F4, F5 | RPM | 0 |
| Vehicle Speed | F0, F1, F2, F3, F4, F5 | km/h (mph) | 0 |
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*Data List Legend
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