GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Cluster (IPC) Scan Tool Output Controls
Table 2: Engine Control Module (ECM) Scan Tool Output Controls

Instrument Panel Cluster (IPC) Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

Coolant Gauge Sweep Test

Special Functions

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

Dimming

Special Functions

The instrument panel cluster (IPC) dims the indicators, the odometer segments and the PRNDL segments when you select dimming

Display(s) Test

Special Functions

The IPC illuminates the indicators, the PRNDL segments, the odometer segments when you select On.

Fuel Gauge Sweep Test

Special Functions

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

Oil Gauge Sweep Test

Special Functions

The scan tool commands the IPC to sweep the oil gage between minimum and maximum when selected.

Speedometer Gauge Sweep Test

Special Functions

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

Tachometer Gauge Sweep Test

Special Functions

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

Volts Gauge Sweep Test

Special Functions

The scan tool commands the IPC to sweep the volts gauge between minimum and maximum when selected.

Engine Control Module (ECM) Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

MIL

Engine Output Control

The ECM illuminates the MIL when selected.