GM Service Manual Online
For 1990-2009 cars only
Table 1: Instrument Panel Cluster Scan Tool Data Parameters
Table 2: Instrument Panel Cluster Scan Tool Output Controls

Instrument Panel Cluster Scan Tool Data Parameters

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON

Battery Voltage

--

Varies

This displays volts. This is the voltage input supplied to the instrument panel cluster.

Brake Fluid

--

OK

The scan tool displays OK or Low. This is the state of the brake fluid level.

Brake Fluid Switch

--

Varies

This displays volts. This is the voltage status of the brake fluid switch.

Brake System Fault Detected

--

  

DIC Fuel Info.

--

Inactive

The scan tool displays Active or Inactive. This is the state of the DIC Fuel Info. switch.

DIC Information Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the DIC Information switch.

DIC Personalization

--

Off

The scan tool displays Active or Inactive. This is the state of the DIC Personalization switch.

Ignition 1 Input

--

Active

The scan tool displays Active or Inactive. This is the state of the Ignition 1 input to the instrument panel cluster.

Ignition Cycle Counter

--

Varies

The scan tool displays counts. This is the number of times the ignition has been cycled from the OFF to ON position.

Low Coolant Input

--

On

The scan tool displays Off and On. This is the status of the coolant level input.

Outside Air Temp. Filtered

--

Varies w/out side air temp.

The scan tool displays Fahrenheit or Celsius. This is the filtered outside air temperature as monitored by the IPC.

Outside Air Temp. Raw

--

Varies w/out side air temp.

The scan tool displays Fahrenheit or Celsius. This is the raw outside air temperature as monitored by the IPC.

Passenger Seatbelt Indicator Commanded

--

Off

This displays On or Off. This is the commanded state of the passenger seatbelt indicator.

Passenger Seatbelt Indicator Status

--

Off

This displays On or Off. This is the state of the passenger seatbelt indicator.

Set/Reset Switch

--

Inactive

The scan tool displays Active or Inactive. This is the state of the set/reset switch.


Instrument Panel Cluster Scan Tool Output Controls

Output Control

Description

Dimming

The IPC dims from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments.

IPC Gauge Sweep Test

This output control is used to command the gauges in the instrument panel cluster from minimum to maximum when selected.

Lamp Test

The IPC illuminates the following indicators when you select On: · ABS · Air Bag · Brake · CRUISE · Fasten safety belt · High beam · SECURITY · Upshift The indicators should illuminate until commanded Off.