GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data List Except Holden

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

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 Run Time

F0, F2

hours:minutes:seconds

Varies

Engine Speed

F0, F1, F2

RPM

660-680

Engine Torque

F0, F1, F2

N·m (lb ft)

8-12 (6-9)

Gear Ratio

F0, F1, F2, F3

Ratio

Varies

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

56-57

Line PC Sol. Ref. Current

F0, F3

Amps

0.96

Shift PC Sol. Actual Current

F0, F3

Amps

0.29

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

19

Shift PC Sol. Ref. Current

F0, F3

Amps

0.29

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

20-40

TR Sw.

F0, F2

Park, Reverse, Neutral, Drive, Intermediate, Low, Invalid

Park

TR Sw. A/B/C/P

F0, F2

HI, LOW

HI LOW LOW HI

Trans. Fluid Temp.

F0, F1, F2

°C (°F)

Varies

Trans. Oil Life

F0, F1

percent

Varies

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

600-700

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

Scan Tool Data List Holden

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 diagnosis. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.

The Typical Data Values are obtained from a properly operating vehicle under the conditions specified in the first row of the Scan Tool Data List table.

Transmission Scan Tool Data List

Scan Tool Parameter

System State

Expected Value

Description

Engine Idling / Operating Temperature / Closed Throttle / Park or Neutral / Closed Loop / Accessories Off

AT Output Speed (Automatic Transmission)

-

RPM

This parameter displays the output speed signal of the transmission output speed sensor in RPM.

AT Turbine Speed (Automatic Transmission)

-

RPM

This parameter displays the Turbine speed signal of the transmission turbine speed sensor in RPM.

Brake Switch

Off

On

-

The scan tool displays On and Off.

The scan tool displays Off when the ignition is ON and the brake pedal is not applied.

Commanded Gear

1st

2nd

3rd

4th

Reverse

Invalid

-

This parameter displays the current commanded state of the shift solenoid valves.

Current Gear

1st

2nd

3rd

4th

Reverse

Invalid

-

This parameter displays the current gear of the shift solenoid valves.

Emergency Mode

Off

On

-

This parameter displays the emergency mode.

Engine Speed

-

RPM

This parameter displays the rotational speed of the engine expressed as revolutions per minute.

Engine Torque

-

Nm

This parameter displays a calculated value based on engine load, throttle position, mass air flow, and other engine inputs.

Ignition Voltage

-

Battery Voltage

The scan tool displays the voltage measured between the module’s battery positive voltage circuit and ground circuit.

Program Mode

Economy Mode

Power Mode

Hold Mode

Unknown

-

This parameter displays the Program Modes.

Selector Position

1

2

3

4

D (Driving)

N (Neutral Gear)

R (Reverse Gear)

P (Park Gear)

Z1

Z2

Z3

Z4

Unknown

Error

-

This parameter displays the actual gear selected.

Solenoid 1 Status

Off

On

-

This parameter displays the commanded state of the Shift solenoids On or Off.

Solenoid 2 Status

Off

On

Solenoid 3 Actual Current

mA

-

This parameter displays the Actual current flow of the solenoid valve circuit. The scan tool displays current flow in mAmps.

Solenoid 4 Actual Current

mA

Solenoid 5 Actual Current

mA

Solenoid 6 Actual Current

mA

Solenoid 3 Current

mA

-

This parameter displays the commanded reference current flow of the solenoid valve circuit. The scan tool displays current flow in mAmps.

Solenoid 4 Current

mA

Solenoid 5 Current

mA

Solenoid 6 Current

mA

TCC Slip RPM (Torque Converter Clutch)

-

RPM

This parameter displays the difference between transmission input speed and engine speed.

TCC Status (Torque Converter Clutch)

Open

Control

Close

-

This parameter displays the commanded state of the torque converter clutch status.

Throttle Position Sensor

-

0 - 100%

This parameter displays the Throttle Position Sensor signal in percentage.

Torque Reduction

-

Nm

This parameter displays the Torque Reduction status in Nm.

'Transmission Fluid Temperature

-

°C

This parameter displays the input signal of the transmission fluid temperature sensor.

Turbine Torque

-

Nm

This parameter displays the Turbine Torque in Nm.

Vehicle Speed

-

km/h

This parameter displays the speed at which the vehicle is traveling. The scan tool displays vehicle speed as kilometers per hour (km/h), (miles per hour (MPH)).