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

Battery Voltage

ESCM

Volts

12.6 Volts

Compressor Relay Cmd.

ESCM

On/Off

Off

Exhaust Valve Command

ESCM

On/Off

Off

Suspension Position Sensor

ESCM

Volts

Varies

Vehicle Speed

ESCM

MPH

0