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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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 | ||||||||
| |||||||||||
