GM Service Manual Online
For 1990-2009 cars only

Instrument Cluster (IPC)

Scan Tool Output Control

Additional Menu Selection(s)

Description

VF Dim

Cluster Dimming

The instrument cluster displays can be dimmed manually when you select ON. The displays should remain dimmed for 5 seconds.

Flourescent Light

Cluster Dimming

The instrument cluster displays can be dimmed manually when you select ON. The displays should remain dimmed for 5 seconds.

Display(s) Test

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The instrument cluster displays can be activated when you select ON. The indicators, VF display segments, climate control panel, and radio should illuminate for 5 seconds.