For 1990-2009 cars

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

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
TP Angle | F0, F1, F2 | percent | 0
Battery Voltage | F0 | volts | 12.8
Brake Switch | F0, F1, F2 | Applied, Released | Released
Commanded Gear | F0, F1, F2, F3 | 1, 2, 3, 4, 5 | 1
Cruise | F0 | Enabled, Disabled | Disabled
ECT | F0, F1, F2 | °C (°F) | 85-105°C (185-220°F)
Engine Speed | F0, F1, F2 | RPM | 660-680
Engine Torque | F0, F1, F2 | N·m (lb ft) | 0
Gear Ratio | F0, F1, F2, F3 | Ratio | 7.97:1
Ignition Voltage | F0, F2, F3 | Volts | 12.6-14.0
Last 1-2 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 2-1 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 2-3 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 2-4 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 3-2 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 3-4 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 4-2 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 4-3 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 4-5 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Last 5-4 Shift Status | F2 | Good, Flare, Tie-Up, Short, Long, Inconclusive | Inconclusive, Good
Line PC Sol. Actual Current | F0, F3 | amps | 0.96
Line PC Sol. CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
Line PC Sol. Duty Cycle | F0, F2, F3 | percent | 59
Line PC Sol. Ref. Current | F0, F3 | amps | 1.0
Shift PC Sol. Actual Current | F0, F3 | amps | 0.66
Shift PC Sol. CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
Shift PC Sol. Duty Cycle | F0, F2, F3 | percent | 39
Shift PC Sol. Ref. Current | F0, F3 | amps | 0.66
Shift Solenoid 1 | F0, F2, F3 | On, Off | Off
Shift Solenoid 1 CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
Shift Solenoid 2 | F0, F2, F3 | On, Off | Off
Shift Solenoid 2 CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
Shift Solenoid 3 | F0, F2, F3 | On, Off | Off
Shift Solenoid 3 CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
Shift Solenoid 4 | F0, F1, F2, F3 | On, Off | Off
Shift Sol. 4 CKT Status | F0, F1, F3 | OK, Open/Short to Volts, Short to GND | OK
Shift Solenoid 5 | F0, F2, F3 | On, Off | Off
Shift Solenoid 5 CKT Status | F0, F3 | OK, Open/Short to Volts, Short to GND | OK
TCC PC Sol. Actual Current | F0, F1, F3 | amps | 0.20
TCC PC Sol. CKT Status | F0, F1, F3 | OK, Open/Short to Volts, Short to GND | OK
TCC PC Sol. Duty Cycle | F0, F1, F2, F3 | percent | 14
TCC PC Sol. Ref. Current | F0, F1, F3 | amps | 0.20
TCC Slip Speed | F0, F1, F2 | RPM | 0-20
TR Sw. | F0, F2, F3 | Park, Reverse, Neutral, Drive, Intermediate, Low, Invalid | Park
Trans. Fluid Temp. | F0, F1, F2 | °C (°F) | 158
Trans. Protection Mode | F0, F1, F2, F3 | OFF, ON | OFF
Transmission Hot Mode | F0, F1, F2 | OFF, ON | OFF
Transmission ISS | F0, F1, F2 | RPM | 700-800
Transmission OSS | F0, F1, F2 | RPM | 0
Vehicle Speed | F0, F1, F2 | km/h (mph) | 0

• | F0: Transmission Data

• | F1: TCC Data

• | F2: Shift Data

• | F3: Solenoid Data