GM Service Manual Online
For 1990-2009 cars only

Instrument Cluster

Scan Tool Output Control

Additional Menu Selection(s)

Description

Check Coolant Temp

Lamp Test

Command the instrument cluster message center module to activate the output. The scan tool will displays the status of the selected output. This status information represents only what the scan tool has commanded, not what action was actually taken.

Check Engine Temp

Lamp Test

Command the instrument cluster message center module to activate the output. The scan tool will displays the status of the selected output. This status information represents only what the scan tool has commanded, not what action was actually taken.

Low Coolant

Lamp Test

Command the instrument cluster message center module to activate the output. The scan tool will displays the status of the selected output. This status information represents only what the scan tool has commanded, not what action was actually taken.

Reduced Engine Power

Lamp Test

Command the instrument cluster message center module to activate the output. The scan tool will displays the status of the selected output. This status information represents only what the scan tool has commanded, not what action was actually taken.