GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Cluster (IPC)
Table 2: Engine Control Module (ECM) - 2.8L (LPI)/3.6L (LY7)

Instrument Panel Cluster (IPC)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Display(s) Test

Output Control

The instrument panel cluster (IPC) illuminates all of the display segments and sweeps all gages when you select On.

Cluster Dimming

Output Control

The IPC dims from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments.

Engine Control Module (ECM) - 2.8L (LPI)/3.6L (LY7)

Scan Tool Output Control

Additional Menu Selection(s)

Description

MIL

Engine Output Controls

The engine control module (ECM) commands the MIL indicator on and off.

Oil Life Reset

Engine Output Controls

The ECM resets the engine oil life to 0 percent and back to the original value when commanded