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Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy C Silverado - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Transmission Scan Tool Data Values

Transmission Scan Tool Data Values 4.8L and 5.3L

Use the scan tool data values under the following conditions:

    • The Powertrain On-Board Diagnostic (OBD) System Check is complete.
    • The on-board diagnostics are functioning properly.
    • No 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

Transmission Scan Tool Data Values (1999 GMT800 4.8L and 5.3 L)

Scan Tool Parameter

Data List*

Units

Typical Data Value

1-2 Shift Error

F2, F7

Seconds

Varies

1-2 Shift Time

F0, F2

Seconds

Varies

1-2 Sol.

F0, F2, F3, F4

On/Off

On

1-2 Sol. Open/Short to GND

F0, F2

Yes/No

No

1-2 Sol. Short to Volts

F0, F2

Yes/No

No

1-2 TAP Cell (4-16)

F7

kPa/Psi

Varies

2-3 Shift Error

F3, F8

Seconds

Varies

2-3 Shift Time

F0, F3

Seconds

Varies

2-3 Sol.

F0, F2, F3, F4

On/Off

On

2-3 Sol. Open/Short to GND

F0, F3

Yes/No

No

2-3 Sol. Short to Volts

F0, F3

Yes/No

No

2-3 TAP Cell (4-16)

F8

kPa/Psi

Varies

3-2 Downshift Sol.

F0, F5

On/Off

On

3-2 Sol. Open/Short to GND

F0, F5

Yes/No

No

3-2 Sol. Short to Volts

F0, F5

Yes/No

No

3-4 Shift Error

F4

Seconds

Varies

3-4 Shift Time

F0, F4

Seconds

Varies

4WD

F0

Enabled/Disabled

Disabled

4WD Low

F0

Enabled/Disabled

Disabled

A/C Clutch

F0

On/Off

Off

Adaptable Shift

F0, F7, F8

Yes/No

No

Cruise

F0

Enabled/Disabled

Disabled

Current Gear

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

1, 2, 3, 4

1

Current TAP Cell

F7, F8

4-16

Varies

Current TAP Memory

F7, F8

-16 to +16

Varies

ECT

F0, F1

°C (°F)

Varies

Engine Run Time

F0

Hr/Min/Sec

Varies

Engine Speed

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

RPM

Varies

Engine Torque

F0, F1

N·m (lb ft)

Varies

IAT

F0

°C (°F)

Varies

Ignition Voltage

F0

Volts

12-14 Volts

Latest Shift

F0

Seconds

Varies

PC Sol. Actual Current

F0, F6

Amps

Varies (0.1-1.1 amps)

PC Solenoid Duty Cycle

F0, F6

Percent

Varies

PC Sol. Ref. Current

F0, F6

Amps

Varies (0.1-1.1 amps)

Speed Ratio

F0, F2, F3, F4, F5

Ratio

8.00:1

TCC Brake Switch

F0, F1

Open/Closed

Closed

TCC Duty Cycle

F0, F1

Percent

0%

TCC Duty Cycle Open/Short to GND

F0, F1

Yes/No

No

TCC Duty Cycle Short to Volts

F0, F1

Yes/No

No

TCC Enable

F0, F1

Yes/No

No

TCC Enable Open/Short to GND

F0, F1

Yes/No

No

TCC Enable Short to Volts

F0, F1

Yes/No

No

TCC Mode

F0, F1

0-5

0

TCC Slip Speed

F0, F1

RPM

+/-50 RPM from Engine Speed

TFP Switch A/B/C

F0

On/Off

Off/On/Off

TFT Sensor

F0, F1

Volts

Varies

Tow/Haul Mode

F0

Active/Inactive

Inactive

TP Angle

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

Percent

0%

TP Sensor

F0, F1, F2, F3, F4, F5

Volts

0.3-0.9 V

Trans. Fluid Temp.

F0, F1, F5, F6

°C (°F)

Varies

Transfer Case Ratio

F0, F2, F3, F4

Ratio

2.61:1

Transmission Hot Mode

F0, F1

On/Off

Off

Transmission OSS

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

RPM

0

Vehicle Speed

F0, F1, F2, F3, F4, F5

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: 3-2 Down Shift Data
    • F6: PC Solenoid Data
    • F7: 1-2 Adapt Data
    • F8: 2-3 Adapt Data

Transmission Scan Tool Data Values 4.3L

Use the scan tool data values under the following conditions:

    • The Powertrain On-Board Diagnostic (OBD) System Check is complete.
    • The on-board diagnostics are functioning properly.
    • No 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

Transmission Scan Tool Data Values (1999 GMT800 4.3L)

Scan Tool Parameter

Data List*

Units

Typical Data Value

1-2 Shift Error

F2, F7

Seconds

Varies

1-2 Shift Time

F0, F2

Seconds

Varies

1-2 Sol.

F0, F2, F3, F4

On/Off

On

1-2 Sol. Open/Short to GND

F0, F2

Yes/No

No

1-2 Sol. Short to Volts

F0, F2

Yes/No

No

1-2 TAP Cell (4-16)

F7

kPa/Psi

Varies

2-3 Shift Error

F3, F8

Seconds

Varies

2-3 Shift Time

F0, F3

Seconds

Varies

2-3 Sol.

F0, F2, F3, F4

On/Off

On

2-3 Sol. Open/Short to GND

F0, F3

Yes/No

No

2-3 Sol. Short to Volts

F0, F3

Yes/No

No

2-3 TAP Cell (4-16)

F8

kPa/Psi

Varies

3-2 Downshift Sol.

F0, F5

On/Off

On

3-2 Sol. Open/Short to GND

F0, F5

Yes/No

No

3-2 Sol. Short to Volts

F0, F5

Yes/No

No

3-4 Shift Error

F4

Seconds

Varies

3-4 Shift Time

F0, F4

Seconds

Varies

4WD

F0

Enabled/Disabled

Disabled

4WD Low

F0

Enabled/Disabled

Disabled

A/C Clutch

F0

On/Off

Off

Adaptable Shift

F0, F7, F8

Yes/No

No

Cruise

F0

Enabled/Disabled

Disabled

Current Gear

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

1, 2, 3, 4

1

Current TAP Cell

F7, F8

4-16

Varies

ECT

F0, F1

°C (°F)

Varies

Engine Run Time

F0

Hr/Min/Sec

Varies

Engine Speed

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

RPM

Varies

Engine Torque

F0, F1

N·m (lb ft)

Varies

IAT

F0

°C (°F)

Varies

Ignition Voltage

F0

Volts

12-14 Volts

Last TAP

F7, F8

kPa/Psi

Varies

PC Sol. Actual Current

F0, F6

Amps

Varies (0.1-1.1 amps)

PC Solenoid Duty Cycle

F0, F6

Percent

Varies

PC Sol. Ref. Current

F0, F6

Amps

Varies (0.1-1.1 amps)

Speed Ratio

F0, F2, F3, F4, F5

Ratio

8.00:1

TCC Brake Switch

F0, F1

Open/Closed

Closed

TCC Duty Cycle

F0, F1

Percent

0%

TCC Duty Cycle Open/Short to GND

F0, F1

Yes/No

No

TCC Duty Cycle Short to Volts

F0, F1

Yes/No

No

TCC Enable

F0, F1

Yes/No

No

TCC Enable Open/Short to GND

F0, F1

Yes/No

No

TCC Enable Short to Volts

F0, F1

Yes/No

No

TCC Mode

F0, F1

0-5

0

TCC Slip Speed

F0, F1

RPM

+/-50 RPM from Engine Speed

TFP Switch A/B/C

F0

On/Off

Off/On/Off

TFT Sensor

F0, F1

Volts

Varies

Tow/Haul Mode

F0

Active/Inactive

Inactive

TP Angle

F0, F1, F2, F3, F4, F5, F6, F7, F8

Percent

0%

TP Sensor

F0, F1, F2, F3, F4, F5

Volts

0.3-0.9 V

Trans. Fluid Temp.

F0, F1, F5, F6

°C (°F)

Varies

Transmission Hot Mode

F0, F1

On/Off

Off

Transmission OSS

F0, F1, F2, F3, F4, F5

RPM

0

Vehicle Speed

F0, F1, F2, F3, F4, F5

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: 3-2 Down Shift Data
    • F6: PC Solenoid Data
    • F7: 1-2 Adapt Data
    • F8: 2-3 Adapt Data