GM Service Manual Online
For 1990-2009 cars only
Table 1: Powertrain (4.3L, 5.0L, and 5.7L)
Table 2: Powertrain (6.5L)
Table 3: Powertrain (8.1L)

Powertrain (4.3L, 5.0L, and 5.7L)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Engine Idling at Normal Operating Temperature/Transmission in Park

Cruise Control Active

Engine Data 1

Yes/No

No

Cruise Inhibit Signal Command

Engine Data 1

On/Off

Off

Stoplamp Pedal Switch

Engine Data 1

Engine Data 2

Applied/Released

Released

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

EGR Data

Enhanced EVAP Data

Fuel Trim Data

Misfire Data

km/h (mph)

0 km/h (0 mph)

Powertrain (6.5L)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Engine Idling at Normal Operating Temperature/Transmission in Park

APP Indicated Angle

Engine Data 1

0 - 100 %

Varies

Cruise Control Active

Engine Data 1

Yes/No

No

Cruise On/Off Switch

Engine Data 1

On/Off

Off

Cruise Resume/Accel. Switch

Engine Data 1

On/Off

Off

Cruise Set/Coast Switch

Engine Data 1

On/Off

Off

Stoplamp Pedal Switch

Engine Data 1

Open/Closed

Open

TCC/Cruise Brake Switch

Engine Data 1

Open/Closed

Closed

Vehicle Speed Sensor

Engine Data 1

km/h (mph)

0 km/h (0 mph)

Powertrain (8.1L)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Engine Idling at Normal Operating Temperature/Transmission in Park

APP Indicated Angle

Cruise Control Data

0 - 100 %

Varies

Cruise Control Active

Cruise Control Data

Yes/No

No

Cruise Disengaged 1-8 History

Cruise Control Data

Applied/Released

Varies

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

DTC Set This Ignition

Engine Data 1

Engine Data 2

Enhanced EVAP Data

Fuel Trim Data

Cruise Control Data

Yes/No

No

Reduced Engine Power

Engine Data 1

EGR Data

TAC Data

Cruise Control Data

Active/Inactive

Inactive

Stoplamp Pedal Switch

Engine Data 2

TAC Data

Cruise Control Data

Open/Closed

Open

TAC/PCM Communication Signal

Engine Data 1

TAC Data

Cruise Control Data

OK/Fault

OK

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

EGR Data

Enhanced EVAP Data

Fuel Trim Data

Misfire Data

Cruise Control Data

km/h (mph)

0 km/h (0 mph)