For 1990-2009 cars

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 diagnostic trouble codes (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 Displayed | Typical Data Value
--- | --- | --- | ---
1-2 Shift Time | F0, F2 | Seconds | Varies
2-3 Shift Time | F0, F2 | Seconds | Varies
3-4 Shift Time | F0, F2 | Seconds | Varies
4-5 Shift Time | F0, F2 | Seconds | Varies
5-6 Shift Time | F0, F2 | Seconds | Varies
TP Calculated | F0, F1, F2 | % | Varies
Commanded Gear | F0, F1, F2, F3 | 1, 2, 3, 4 or 1, 2, 3, 4, 5 or Park/Neutral, Reverse, 1, 2, 3, 4, 5 | 1, 2, 3, 4, 5, or 6
Driver Shift Control | F0 | Active/Inactive | Inactive
Driver Shift Request | F0 | Upshift/ Downshift/ None/ Invalid | None
Engine Coolant Temperature | F0, F1, F2 | °C(°F) | Varies
Engine Speed | F0, F1, F2 | RPM | Varies
Engine Torque | F0, F1, F2 | N·m (lb ft) | Varies
Ratio | F0, F1, F2, F3 | Ratio | Varies
High Side Driver 2 | F1, F2, F3 | Enabled/Disabled | Enabled
High Side Driver 2 Circuit Status | F1, F2, F3 | OK, Open/Short to Volts, Short to GND, Indeterminate | OK
Ignition Voltage | F0, F2, F3 | Volts | 12-14
Internal Mode Switch | F0, F2 | Park-Drive 1, Open, Invalid | Park
IMS A/B/C/P | F0, F2 | HI/LOW | Varies
Input and Output Shaft Speed Sensor Supply Voltage | F0, F1, F2 | OK, Out of Range | OK
Last Shift Time | F0, F2 | Seconds | Varies
Line PC Solenoid Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
Line PC Solenoid Pressure Command | F0, F3 | kPa (psi) | Varies
PC Sol. 2 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
PC Solenoid 2 Pressure Comm. | F0, F3 | kPa (psi) | Varies
PC Sol. 3 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
PC Solenoid 3 Pressure Comm. | F0, F3 | kPa (psi) | Varies
PC Sol. 4 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
PC Solenoid 4 Pressure Comm. | F0, F3 | kPa (psi) | Varies
PC Sol. 5 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
PC Solenoid 5 Pressure Comm. | F0, F3 | kPa (psi) | Varies
PC Sol. 1 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
Shift Solenoid 1 | F0, F2, F3 | On/Off | On
Shift Sol.2 Circuit Status | F3 | OK, Open/Short to GND, Short to Volts, Indeterminate | OK
Shift Solenoid 2 | F0, F2, F3 | On/Off | On
TCC Brake Switch (Torque Converter Clutch) | F0, F1, F2 | Open/Closed | Open
TCC PC Sol.Pressure Command | F0, F1, F3 | kPa (psi) | Varies
TCC Slip Speed (Torque Converter Clutch) | F0, F1, F2 | RPM | Varies
The TCM Temperature | F0, F1, F2 | °C(°F) | Varies
TFP Switch 1 | F0 | HI/LOW | HI/LOW
TFP Switch 3 | F0 | HI/LOW | HI/LOW
TFP Switch 4 | F0 | HI/LOW | HI/LOW
TFP Switch 5 | F0 | HI/LOW | HI/LOW
Trans. Fluid Temp. | F0, F1, F2 | °C(°F) | Varies
Transmission Input Shaft Speed | F0, F1, F2 | RPM | Varies
Transmission Output Shaft Speed | F0, F1, F2 | RPM | Varies

#### *Data List Legend

• | F0: Transmission Data

• | F1: TCC Data

• | F2: Shift Data

• | F3: Solenoid Data