GM Service Manual Online
For 1990-2009 cars only

Use the scan tool data values under the following conditions:

    • The Diagnostic System Check - Engine Controls 2.2L (L61) 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 Neutral
    • Closed Loop operation
    • Accessories OFF
    • Brake pedal not applied

Scan Tool Parameter

*Data List

Units Displayed

Typical Data Value

Vehicle Speed

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

km/h (mph)

0

*Data List Legend

    • F0: General Info - Inputs
    • F1: General Info - Outputs
    • F2: Fuel and Emissions
    • F3: Ignition
    • F4: Misfire
    • F5: Auxiliary Emissions
    • F6: Idle/Speed Control
    • F7: Output Driver Status
    • F8: Engineering