For 1990-2009 cars

## Scan Tool Data Value Examples 5.7L

If you have completed the On-Board Diagnostic (OBD) system check, if the diagnostics are functioning properly, and if no DTCs are displayed, you may use the Typical Scan Tool Data Values in the table below for comparison. These values are an average of display values recorded from normally operating vehicles.

Important: Never use a scan tool that displays faulty data. Report the condition to the 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.

The values below were recorded under the following conditions:

• | Engine is at Idle

• | Upper radiator hose is hot

• | Closed throttle

• | Gear is in Park or Neutral

• | Closed Loop

• | Accessories are OFF

#### Scan Tool Data Value Examples (5.7 L, VIN G)

Tech 2 Parameter | Units Displayed | Typical Scan Values
--- | --- | ---
Engine Torque | N·m (lb ft) | varies
TP Angle | percent | 0%
TP Sensor | volts | 0.30-0.90 V
Engine Speed | RPM | varies
Transmission OSS | RPM | 0
Vehicle Speed | mph (km/h) | 0
Current Gear | 1,2,3,4 | 1
1-2 Sol. | On/Off | On
2-3 Sol. | On/Off | On
3-2 Downshift Sol. | On/Off | On
Speed Ratio | Ratio | 8.00:1
1-2 Sol. Open/Short to GND | Yes/No | No
1-2 Sol. Short to Volts | Yes/No | No
2-3 Sol. Open/Short to GND | Yes/No | No
2-3 Sol. Short to Volts | Yes/No | No
3-2 Downshift Sol. Open/Short to GND | Yes/No | No
3-2 Downshift Sol. Short to Volts | Yes/No | No
TFP Sw. A/B/C | On/Off | Off/On/Off
ECT | °C (°F) | varies
Trans. Fluid Temp. | °C (°F) | varies
TFT Sensor | volts | varies
IAT | °C (°F) | varies
Hot Mode | On/Off | Off
PC Sol. Actual Current | amps | varies (0.1-1.1 amps)
PC Sol. Ref. Current | amps | varies (0.1-1.1 amps)
PC Sol. Duty Cycle | percentage | varies
TCC Brake Switch | Open/Closed | Closed
TCC Enable | Yes/No | No
TCC Mode | 0-5 | 0
TCC Duty Cycle | Percentage | 0%
TCC Slip Speed | RPM | +/- 50 RPM from the Engine Speed
TCC Enable Open/Short to GND | Yes/No | No
TCC Enable Short to Volts | Yes/No | No
TCC Duty Cycle Open/Short to GND | Yes/No | No
TCC Duty Cycle Short to Volts | Yes/No | No
Latest Shift | seconds | varies
1-2 Shift Time | seconds | varies
2-3 Shift Time | seconds | varies
3-4 Shift Time | seconds | varies
Adaptable Shift | Yes/No | No
Engine Run Time | hr/min/sec | varies
Ignition Voltage | Volts | varies
A/C Clutch | On/Off | Off
1-2 Shift Error | seconds | 0.00
2-3 Shift Error | seconds | 0.00
Current TAP Cell | 0-16 | varies
Current TAP Memory | -16 to +16 | varies
1-2 TAP Cell (4-16) | psi | varies
2-3 TAP Cell (4-16) | psi | varies

## Scan Tool Data Value Examples 3.8L

If you have completed the On-Board Diagnostic (OBD) system check, if the diagnostics are functioning properly, and if no DTCs are displayed, you may use the Typical Scan Tool Data Values in the table below for comparison. These values are an average of display values recorded from normally operating vehicles.

Important: You should never use a scan tool that displays faulty data. The condition should be reported to the 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.

The values below were recorded under the following conditions:

• | Engine is at Idle

• | Upper radiator hose is hot

• | Closed throttle

• | Gear is in Park or Neutral

• | Closed Loop

• | Accessories are OFF

#### Scan Tool Data Value Examples (3.8L, VIN K)

Tech 2 Parameter | Units Displayed | Typical Scan Values
--- | --- | ---
Engine Torque | N·m (lb ft) | varies
TP Sensor | volts | 0.30-0.90 V
TP Angle | percent | 0%
Engine Speed | RPM | varies
Transmission OSS | RPM | 0
Vehicle Speed | mph (km/h) | 0
Current Gear | 1,2,3,4 | 1
1-2 Sol. | On/Off | On
2-3 Sol. | On/Off | On
3-2 Downshift Sol. | On/Off | On
Speed Ratio | Ratio | 8.00:1
1-2 Sol. Open/Short to GND | Yes/No | No
1-2 Sol. Short to Volts | Yes/No | No
2-3 Sol. Open/Short to GND | Yes/No | No
2-3 Sol. Short to Volts | Yes/No | No
3-2 Sol. Open/Short to GND | Yes/No | No
3-2 Sol. Short to Volts | Yes/No | No
TFP Sw. A/B/C | On/Off | Off/On/Off
ECT | °C (°F) | varies
Trans. Fluid Temp. | °C (°F) | varies
TFT Sensor | volts | varies
IAT | °C (°F) | varies
Hot Mode | On/Off | Off
PC Sol. Actual Current | amps | varies (0.1-1.1 amps)
PC Solenoid Ref. Current | amps | varies (0.1-1.1 amps)
PC Solenoid Duty Cycle | percentage | varies
TCC Brake Switch | Open/Closed | Closed
TCC Enable | Yes/No | No
TCC Duty Cycle | Percentage | 0%
TCC Slip Speed | RPM | +/- 50 RPM from the Engine Speed
TCC Enable Open/Short to GND | Yes/No | No
TCC Enable Short to Volts | Yes/No | No
TCC Duty Cycle Open/Short to GND | Yes/No | No
TCC Duty Cycle Short to Volts | Yes/No | No
Adaptable Shift | Yes/No | No
Latest Shift | seconds | varies
1-2 Shift Time | seconds | varies
2-3 Shift Time | seconds | varies
3-4 Shift Time | seconds | varies
Engine Run Time | hr/min/sec | varies
Ignition Voltage | Volts | varies
Cruise | Enabled/Disabled | Disabled
A/C Clutch | On/Off | Off
2nd Gear Start | Yes/No | No
1-2 Shift Error | seconds | 0.00
Current TAP Cell | 0-16 | varies
Current TAP Memory | -16 to +16 | varies
Maximum Tap | Yes/No | No
1-2 TAP Cells (4-16) | psi | varies