GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Cluster (IPC) Scan Tool Output Controls (DIC Present/No DIC Present)
Table 2: Powertrain Control Module (PCM) 3.8L Scan Tool Output Controls
Table 3: Engine Control Module (ECM) 3.6L (LY7) Scan Tool Output Controls

Instrument Panel Cluster (IPC) Scan Tool Output Controls (DIC Present/No DIC Present)

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions

Segment Test - DIC/Odometer

All segments of the driver information center (DIC) and odometer illuminate when ON is selected from the scan tool.

Special Functions

Display Test

The instrument panel cluster (IPC) illuminates all the indicators when commanded ON from the scan tool.

Special Functions

IPC Gages - Coolant Gage Sweep Test

The scan tool commands the IPC to sweep the coolant gage from minimum to maximum when selected.

Special Functions

IPC Gages - Fuel Gage Sweep Test

The scan tool commands the IPC to sweep the fuel gage from minimum to maximum when selected.

Special Functions

IPC Gages - Speed Gage Sweep Test

The scan tool commands the IPC to sweep the speedometer from minimum to maximum when selected.

Special Functions

IPC Gages - Tach Gage Sweep Test

The scan tool commands the IPC to sweep the tachometer from minimum to maximum when selected.

Powertrain Control Module (PCM) 3.8L Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions

Engine Output Controls - Dash Lamps

The scan tool commands the powertrain control module (PCM) to illuminate the malfunction indicator lamp (MIL) when selected.

Engine Control Module (ECM) 3.6L (LY7) Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selections

Description

Special Functions

Engine Output Control - Malfunction Indicator Lamp (MIL)

The scan tool commands the engine control module (ECM) to illuminate the MIL when selected.