GM Service Manual Online
For 1990-2009 cars only
Table 1: Powertrain Control Module (PCM)
Table 2: Instrument Panel Cluster (IPC)

Powertrain Control Module (PCM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

GEN L-Terminal

Engine, Engine Electrical, Special Functions, PCM

The powertrain control module (PCM) commands the generator OFF when off is selected. The generator will then stop generating an output voltage.

Instrument Panel Cluster (IPC)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Segment Check

Body and Accessories, Instrument Panel, Special Function, IPC

The instrument panel cluster (IPC) illuminates all indicators to test for an inoperative indicator. The battery indicator is just to the left of the engine indicator.