GM Service Manual Online
For 1990-2009 cars only

PCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/No Switches Turned On

APP Average

Cruise Control

Counts

Varies

APP Indicated Angle

Cruise Control

Percentage

Varies

CC Brake Switch (Manual Transmission Only)

Cruise Control

Applied/Released

Released

Clutch Switch (Manual Transmission Only)

Cruise Control

Depressed/Released

Released

Cruise Disengage History 1-8

Cruise Control

List 1-8

List begins with most recent

Cruise Requested

Cruise Control

Yes/No

No

Cruise Resume/Accel

Cruise Control

On/Off

Off

Cruise Set Coast

Cruise Control

On/Off

Off

Cruise Switch

Cruise Control

On/Off

Off

Extended Brake Travel Switch

Cruise Control

Applied/Released

Released

PRND Position

Cruise Control

Transaxle Gear Selector Position

Park

Reduced Engine Power

Cruise Control

Active/Inactive

Inactive

Stop Lamp Switch

Cruise Control

Applied/Released

Released

TAC/PCM Communication

Cruise Control

OK/Fault

OK

TCC/CC Brake Switch

Cruise Control

Applied/Released

Released

TCC Enable Solenoid

Cruise Control

Enabled/Disabled

Disabled

TP Desired Angle

Cruise Control

Percentage

3-10%

TP Indicated Angle

Cruise Control

Percentage

3-9%

Traction Control

Cruise Control

Active/Inactive

Active

Transmission Range

Cruise Control

Transaxle Gear Position

Park/Neutral

Vehicle Speed

Cruise Control

km/h/mph

0 km/h or 0 mph