GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Cluster (IPC)
Table 2: Engine Control Module (ECM) -- 2.8 L(LPI)/3.6 L(LY7)
Table 3: Powertrain Control Module (PCM) -- 5.7 L

Instrument Panel Cluster (IPC)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Display(s) Test

Output Control

The 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% when you select INCREASE or DECREASE by 20% increments.

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

Scan Tool Output Control

Additional Menu Selection(s)

Description

MIL

Engine Output Controls

The ECM commands the MIL indicator on and off.

Oil Life Reset

Engine Output Controls

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

Powertrain Control Module (PCM) -- 5.7 L

Scan Tool Output Control

Additional Menu Selection(s)

Description

Fuel Gage

Engine Output Controls

The PCM sweeps the fuel gage when On is selected.

Oil Life Reset

Engine Output Controls

The PCM resets the engine oil life to 0% and back to the original value when commanded