Scan Tool Diagnostics: Notes

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: DO NOT use a scan tool that displays faulty data. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts. Only the parameters listed under SCAN TOOL DATA DEFINITIONS are used in diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.

The values listed in AWD SCAN TOOL DATA LIST table represent a typical display recorded from a properly functioning system, 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.

AWD SCAN TOOL DATA LIST

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

AWD Circuit Status

⁽¹⁾

OK/Short/Open

AWD Clutch temperature Disable

⁽¹⁾

Yes/No

AWD Duty Cycle

⁽¹⁾

Percent

10-30% Or 60-80%

AWD Fluid temperature Disable

⁽¹⁾

Yes/No

AWD Voltage Disable

⁽¹⁾

Yes/No

AWD Mini Spare Disable

⁽¹⁾

Yes/No

AWD Overtemperature Display

⁽¹⁾

Yes/No

AWD Torque Management

⁽¹⁾

Active/Inactive

Inactive

AWD Wheel Speed Disable

⁽¹⁾

Yes/No

AWD Last Disable Odometer

⁽¹⁾

km (Miles)

Varies

Last Disable Reason

⁽¹⁾

Fluid Temp, Clutch Temp, Wheel Speed, Voltage, Mini Spare, ABS System

Varies

Current Gear

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁷⁾

1, 2, 3, 4

ECT

⁽¹⁾⁽²⁾⁽³⁾

°C (°F)

97°C (206°F)

Engine Speed

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁷⁾

RPM

750-850

Engine Torque

⁽¹⁾⁽²⁾⁽³⁾

N.m (Ft. Lbs.)

Varies

Gear Ratio

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾

Ratio

3.98

Ignition Voltage

⁽¹⁾⁽²⁾

Volts

12.5-15.5

TFP Sw.

⁽¹⁾⁽²⁾

Park/Neutral, Reverse, Drive 4, Drive 3, Drive 2, Drive 1, Invalid

Park/Neutral

TP Angle

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁷⁾

Percent

Trans. Fluid Temp.

⁽¹⁾⁽²⁾⁽³⁾⁽⁷⁾

°C (°F)

Varies

Transmission ISS

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾

RPM

700-800

Transmission OSS

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾

RPM

Vehicle Speed

⁽¹⁾⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾

MPH (KM/H)

⁽¹⁾

AWD data.

⁽²⁾	Transmission data.

⁽³⁾

TCC data.

⁽⁴⁾	1-2 Shift data.

⁽⁵⁾	2-3 Shift data.

⁽⁶⁾	3-4 Shift data.

⁽⁷⁾	PC Solenoid data.