GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Key ON, engine OFF, Transmission in Park

Cruise Switch

Idle/Speed Control

On/Off

On/Off

Cruise Set/Coast

Idle/Speed Control

On/Off

Off

Cruise Resume/Accel

Idle/Speed Control

On/Off

Off

Cruise Clutch Command

Idle/Speed Control

On/Off

Off

Cruise Direction Command

Idle/Speed Control

Idle/WOT

Idle

M/T Clutch Disengage

Idle/Speed Control

No/Yes

No

Cruise in Released State

Idle/Speed Control

No/Yes

NO

Cruise Switch Voltage

Idle/Speed Control

volts

.5V

Cruise Vehicle Set Speed

Idle/Speed Control

mph

0 mph

Cruise Delta

Idle/Speed Control

mph

0 mph

Cruise Brake Switch

Idle/Speed Control

Applied/Released

Released

Stop Lamp Switch

Idle/Speed Control

Applied/Released

Released

Cruise Move Command

Output Driver Status

On/Off

Off

C/C Move Ckt.-Low Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

C/C Move Ckt.-Open

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

C/C Move Ckt.-High Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

C/C Direction Command

Output Driver Status

On/Off

Off

C/C Dir. Ckt.-Low Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

TNR

C/C Dir. Ckt.-Open

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

C/C Dir. Ckt.-High Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

Cruise Clutch Command

Output Driver Status

On/Off

Off

C/C Clutch-Low Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

TNR

C/C Clutch-Open

Output Driver Status

Test Not Ran/Test Pass/Test Fail

Pass

C/C Clutch-High Volt

Output Driver Status

Test Not Ran/Test Pass/Test Fail

TNR