GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Radio ON

Antenna Enabled

Inputs

Active/Not Active

Active

Balance

Data

Numeric

Varies

Bass

Data

%

Varies

Battery Voltage

Data

Volts

Varies

Cassette Inserted

Inputs

Yes/No

No

Cassette Metal

Inputs

Metal/Not Metal

Not Metal

Cassette Side

Inputs

Top/Bottom

Top

CD Inserted

Inputs

Yes/No

No

Chime Type

Outputs

--

Fast

Fade

Data

Numeric

Varies

Ign Since Current DTC

Data

Cycles

Varies

Signal Strength

Data

dB

Varies

Source

Inputs

Off/Tuber/CD/Cassette

Tuner

Theft Armed

Inputs

No VIN/Learn VIN

Varies

Theft Lock

Inputs

Active/Inactive

Inactive

Treble

Data

%

Varies

Volume

Data

Numeric

Varies