GM Service Manual Online
For 1990-2009 cars only

Powertrain (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off

APP Indicated Angle

Cruise Control Data

Percent

0

Cruise Control Active

Cruise Control Data

Yes/No

No

Cruise Disengage (1 - 8) History

Cruise Control Data

Last reason for cruise control disengagement

Varies

Cruise Mode Signal

Cruise Control Data

Volts

0.0 Volts

Cruise On/Off Switch

Cruise Control Data

On/Off

Off

Cruise Resume/Accel. Switch

Cruise Control Data

On/Off

Off

Cruise Set/Coast Switch

Cruise Control Data

On/Off

Off

Engine Load

Cruise Control Data

Percent

0

Engine Run Time

Cruise Control Data

Hr: Min: Sec

Varies

Engine Speed

Cruise Control Data

RPM

Varies

Ignition 1 Signal

Cruise Control Data

Volts

12 to 16 Volts

IMS

Cruise Control Data

P, R, N, D4, D3, D2, D1

P

Initial Brake Apply Signal

Cruise Control Data

Applied/Released

Released

Reduced Engine Power

Cruise Control Data

Active/Inactive

Inactive

Stoplamp Signal

Cruise Control Data

On/Off

Off

TAC/PCM Communication Signal

Cruise Control Data

OK/Fault

OK

TCC PWM Solenoid Command

Cruise Control Data

On/Off

Off

TP Desired Angle

Cruise Control Data

Percent

Varies

TP Indicated Angle

Cruise Control Data

Percent

%

*Traction Control Status (If Equipped)

Cruise Control Data

Active/Inactive

Inactive

Vehicle Speed Sensor

Cruise Control Data

km/h (mph)

0 km/h (0 mph)