GM Service Manual Online
For 1990-2009 cars

IPC

Scan Tool Output Control

Additional Menu Selections

Description

Display Test

Special Functions

The instrument panel cluster (IPC) drives all of the gages at or below minimum for a few seconds when you select ON, then drives all of the gages at or above maximum for a few seconds. The IPC Display Test will end after one cycle of the gages sweep.

Segment Check

Special Functions

The IPC illuminates all of the indicators for 7 seconds when you select ON. The IPC turns off the indicators after the 7 seconds.

Dimming

Special Functions

The IPC increases or decreases the dimming intensity in increments of 20 percent between a range of 0-100 percent.