GM Service Manual Online
For 1990-2009 cars only
Table 1: IPC Scan Tool Output Controls
Table 2: PCM Scan Tool Output Controls

IPC Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

Chime Test

Chime Test

The chime sounds slow, medium, or fast depending on priority.

Coolant Gage Sweep Test

IPC Gages

The IPC drives the coolant gage at or above 125°C (260°F) when you select Up. The IPC drives the coolant gage at or below 38°C (100°F) when you select Down.

Fuel Gage Sweep Test

IPC Gages

The IPC drives the fuel gage at or above full when you select Up. The IPC drives the fuel gage at or below empty when you select Down.

Lamp Test

Lamp Test

The IPC illuminates the following indicators when you select On:

    • ABS
    • Air Bag
    • BRAKE
    • CHECK GAGES
    • MPH or KM/H
    • SECURITY
    • Traction

The indicators should illuminate until commanded Off.

Oil Gage Sweep Test

IPC Gages

The IPC drives the engine oil pressure gage at or above 552 kPa (80 PSI) when you select Up. The IPC drives the engine oil pressure gage at or below 0 kPa (0 PSI) when you select Down.

Speed Gage Sweep Test

IPC Gages

The IPC drives the speedometer at or above 200 MPH when you select Up. The IPC drives the speedometer at or below 0 MPH when you select Down.

Switch Dimming Test

Switch Dimming Test

The IPC tests the dimming circuit for the IPC. When you select ON the IPC illuminates the dimming circuit to its brightest point and when you select OFF the IPC turns off the dimming to the IPC.

Tach Gage Sweep Test

IPC Gages

The IPC drives the tachometer at or above 7,000 RPM when you select Up. The IPC drives the tachometer at or below 0 RPM when you select Down.

Volts Gage Sweep Test

IPC Gages

The IPC drives the volt gage at or above 18 volts when you select Up. The IPC drives the volt gage at or below 8 volts when you select Down.

PCM Scan Tool Output Controls

Scan Tool Engine Output Control

Additional Menu Selection(s)

Description

Fuel Pump

Engine Output Controls

The PCM drives the fuel pump on when you select ON. The PCM drives the fuel pump off when you select OFF.