GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data List Non-Hybrid

Use the scan tool data values under the following conditions:

    • The Diagnostic System Check 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 Error

F2

Seconds

Varies

1-2 Shift Time

F0, F2

Seconds

Varies

1-2 Sol.

F0, F2, F3, F4

On/Off

On

1-2 TAP Cell 4-16

F6/F0

kPa (psi)

Varies

2-3 Shift Time Error

F3

Seconds

Varies

2-3 Shift Time

F0, F3

Seconds

Varies

2-3 Sol.

F0, F2, F3, F4

On/Off

Off

2-3 TAP Cell 4-16

F6/F1

kPa (psi)

Varies

3-4 Shift Time Error

F4

Seconds

Varies

3-4 Shift Time

F0, F4

Seconds

Varies

3-4 TAP Cell 4-16

F6/F2

kPa (psi)

Varies

Brake Switch

F0, F1

Applied/Released

Released

Current Gear

F0, F1, F2, F3, F4, F5

1, 2, 3, 4

1

ECT

F0, F1

°C (°F)

85-105°C (185-220°F)

Engine Speed

F0, F1, F2, F3, F4, F5

RPM

Varies

Engine Torque

F0, F1

N·m (lb ft)

Varies

Gear Ratio

F0, F2, F3, F4

Ratio

3.98

Ignition 1

F0

Volts

12.6-14.7

Last Shift Time

F0

Seconds

Varies

PC Sol. Actual Current

F0, F5

Amps

Varies

PC Sol. Duty Cycle

F0, F5

%

Varies

PC Sol. Ref. Current

F0, F5

Amps

Varies

TCC Duty Cycle

F0, F1

%

0%

TCC Release Pressure

F0, F1

Yes/No

Yes

TCC Slip Speed

F0, F1

RPM

Varies

TFP Sw.

F0

Park/Neutral, Reverse, Drive or Invalid

Park/Neutral

TFP Sw. Sig. B/Sig. C

F0

HI/LOW

LOW/HI/HI

TP Angle

F0, F1, F2, F3, F4, F5

%

0%

Transmission Range

F0

Park, Reverse, Neutral, Drive, 3rd, 2nd, 1st, or invalid

Park

TR Sw. -P/A/B/C

F0

On/Off

On/On/Off/Off

Trans. Fluid Temp.

F0, F1, F5

°C (°F)

Varies

Transmission ISS

F0, F1, F2, F3, F4

RPM

Varies

Transmission OSS

F0, F1, F2, F3, F4

RPM

0

Vehicle Speed

F0, F1, F2, F3, F4

km/h (mph)

0

*Data List Legend

    • F0: Transmission Data
    • F1: TCC Data
    • F2: 1-2 Shift Data
    • F3: 2-3 Shift Data
    • F4: 3-4 Shift Data
    • F5: PC Solenoid Data
    • F6/F0: Transmission Adapts/1-2 Adapt. Data
    • F6/F1: Transmission Adapts/2-3 Adapt. Data
    • F6/F2: Transmission Adapts/3-4 Adapt. Data

Scan Tool Data List Hybrid

Use the scan tool data values under the following conditions:

    • The Diagnostic System Check - Vehicle is complete.
    • The On-Board Diagnostics are functioning properly.
    • There are no diagnostic trouble codes (DTCs) 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, F7/F0

Seconds

Varies

1-2 Sol.

F0, F2, F3, F4

On/Off

On

1-2 Sol. CKT Status

F2

OK, Open/Short to GND, Short to Volts

OK

1-2 TAP Cell 4-16

F7/F0

kPa (psi)

Varies

2-3 Shift Time

F0, F3, F7/F1

Seconds

Varies

2-3 Sol.

F0, F2, F3, F4

On/Off

Off

2-3 Sol. CKT Status

F3

OK, Open/Short to GND, Short to Volts

OK

2-3 TAP Cell 4-16

F7/F1

kPa (psi)

Varies

3-4 Shift Time

F0, F4, F7/F2

Seconds

Varies

3-4 TAP Cell 4-16

F7/F2

kPa (psi)

Varies

4-3 Downshift Sol.

F5

On/Off

Off

4-3 Sol. CKT Status

F5

OK, Open/Short to GND, Short to Volts

OK

Brake Switch

F0, F1

Applied/Released

Released

Calc. Throttle Position

F0, F1, F2, F3, F4, F5, F6

%

0%

Commanded Gear

F0, F1, F2, F3, F4, F5, F6

1, 2, 3, 4

1

Current TAP Cell

F7/F0, F7/F1, F7/F2

4-16

Varies

ECT Sensor

F0, F1

°C (°F)

85-105°C (185-220°F)

Engine Speed

F0, F1, F2, F3, F4, F5, F6

RPM

Varies

Engine Torque

F0, F1

N·m (lb ft)

Varies

Gear Ratio

F0, F1, F2, F3, F4, F6

Ratio

3.98:1

Ignition Voltage

F0

Volts

12.6-14.7

Last Shift Time

F0

Seconds

Varies

PC Sol. Actual Current

F0, F6

Amps

Varies

PC Sol. Duty Cycle

F0, F6

%

Varies

PC Sol. Ref. Current

F0, F6

Amps

Varies

Steady State TAP 1GR

F7/F3

kPa (psi)

Varies

Steady State TAP 2GR

F7/F3

kPa (psi)

Varies

Steady State TAP 2GR/TCC

F7/F3

kPa (psi)

Varies

Steady State TAP 3GR

F7/F3

kPa (psi)

Varies

Steady State TAP 3GR/TCC

F7/F3

kPa (psi)

Varies

Steady State TAP 4GR

F7/F3

kPa (psi)

Varies

Steady State TAP 4GR/TCC

F7/F3

kPa (psi)

Varies

Steady State TAP Reverse

F7/F3

kPa (psi)

Varies

TCC Duty Cycle

F0, F1

%

0%

TCC Duty Cycle CKT Status

F1

OK, Open/Short to GND, Short to Volts

OK

TCC Release Pressure

F0, F1

Yes/No

Yes

TCC Slip Speed

F0, F1

RPM

Varies

TFP Sw.

F0

Park/Neutral, Reverse, Drive, or invalid

Park/Neutral

TFP Sw. Sig. B/ Sig. C

F0

HI/LOW

HI/HI

TR Sw.

F0

Park, Reverse, Neutral, Drive 4, Drive 3, Drive 2, Drive 1 or invalid

Park

TR Sw. A/B/C/P

F0

HI/LOW

LOW/HI/HI/LOW

Traction Control Signal

F0

Active/Inactive

Inactive

Trans. Fluid Temp.

F0, F1, F6

°C (°F)

80-90°C (176-194°F)

Transmission Hot Mode

F0, F1

On/Off

Off

Transmission ISS

F0, F1, F2, F3, F4, F6

RPM

Varies

Transmission OSS

F0, F1, F2, F3, F4, F6

RPM

0

Vehicle Speed

F0, F1, F2, F3, F4, F6

km/h (mph)

0

*Data List Legend

    • F0: Transmission Data
    • F1: TCC Data
    • F2: 1-2 Shift Data
    • F3: 2-3 Shift Data
    • F4: 3-4 Shift Data
    • F5: 4-3 Shift Data
    • F6: PC Solenoid Data
    • F7/F0: Transmission Adapts/1-2 Adapt. Data
    • F7/F1: Transmission Adapts/2-3 Adapt. Data
    • F7/F2: Transmission Adapts/3-4 Adapt. Data
    • F7/F3: Transmission Adapts/Steady State Data