GM Service Manual Online
For 1990-2009 cars only

Scan Tool Output Control

Additional Menu Selection(s)

Description

Coolant Gauge Sweep Test

IPC Gauges

The IPC drives the coolant gauge at or above 260°F (125°C) when you select Up. The IPC drives the coolant gauge at or below 160°F (71°C) when you select Down.

Fuel Gauge Sweep Test

IPC Gauges

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

Speed Gauge Sweep Test

IPC Gauges

The IPC drives the speedometer at or above 50 MPH (80 km/h) The IPC drives the speedometer at or below 0 MPH (0 km/h) when you select Down.

Tach Gauge Sweep Test

IPC Gauges

The IPC drives the tachometer at or above 3000 RPM when you select Up. The IPC drives the tachometer at or below 0 RPM when you select Down.

Lamp Test

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The IPC illuminates the following indicators when you select On:

    • 4WD Indicator
    • ABS
    • BRAKE
    • Cargo Lamp ON
    • Change Engine Oil
    • Check Coolant Temperature
    • Check Engine Oil Level
    • Check Engine Oil Pressure
    • Cruise Control
    • High Beam
    • Low Fuel
    • Low Washer Fluid
    • Low Coolant
    • Reduced Engine Power
    • Safety Belt
    • Security
    • Service Throttle Soon
    • Trans Fluid Hot
    • Upshift
    • Volts Lamp

The indicators should illuminate until commanded Off.

1st

PRNDL Display

The IPC illuminates the 1st gear position (1) on the IPC when you select On. The 1st gear position should illuminate until commanded Off.

2nd

PRNDL Display

The IPC illuminates the 2nd gear position (2) on the IPC when you select On. The 2nd gear position should illuminate until commanded Off.

3rd

PRNDL Display

The IPC illuminates the 3rd gear position (3) on the IPC when you select On. The 3rd gear position should illuminate until commanded Off.

Drive

PRNDL Display

The IPC illuminates the drive position (D) on the IPC when you select On. The drive position should illuminate until commanded Off.

Neutral

PRNDL Display

The IPC illuminates the neutral position (N) on the IPC when you select On. The neutral position should illuminate until commanded Off.

Park

PRNDL Display

The IPC illuminates the park position (P) on the IPC when you select On. The park position should illuminate until commanded Off.

Reverse

PRNDL Display

The IPC illuminates the reverse position (R) on the IPC when you select On. The reverse position should illuminate until commanded Off.