GM Service Manual Online
For 1990-2009 cars only

Powertrain

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On/Engine Idling at Normal Operating Temperature/Transmission in Park or Neutral/Cruise Control On/Off Switch Off.

CPP Switch (If Equipped)

Cruise Control Data

Applied/Released

Released

Cruise Control Active

Cruise Control Data

Active/Inactive

Inactive

Cruise Disengage 1 - 8 History

Cruise Control Data

Last reason for cruise control disengagement

Varies

Cruise On/Off Switch

Cruise Control Data

On/Off

Off

Cruise Resume/Accel. Switch

Cruise Control Data

Active/Inactive

Inactive

Cruise Set/Coast Switch

Cruise Control Data

Active/Inactive

Inactive

Engine Speed

Cruise Control Data

RPM

Varies

Ignition 1 signal

Cruise Control Data

Volts

Varies

Reduced Engine Power

TAC Data

Active/Inactive

Inactive

TCC/Cruise Brake Pedal Switch

Cruise Control Data

Applied/Released

Released

Traction Control Status

Cruise Control Data

Active/Inactive

Inactive

Vehicle Speed Sensor

Cruise Control Data

km/h (mph)

0 km/h (0 mph)