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

Definition

Operating Conditions: Ignition ON

Battery Voltage

--

Varies

This displays volts. The scan tool displays the system voltage of the vehicle.

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.

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 status of the driver information center (DIC) personalization functions as monitored by the IPC.

Heated Washer Fluid Ind. Signal

--

Inactive

The scan tool displays Active or Inactive. This is the status of the heated washer fluid indicator signal as monitored by the IPC.

Ignition 1 Input

--

Active

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

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.

Passenger Seatbelt Indicator Commanded

--

Off

This displays On or Off. This is the state of the seatbelt indicator command as monitored by the IPC.

Passenger Seatbelt Indicator Status

--

Off

This displays On or Off. This is the status of the seatbelt indicator status as monitored by the IPC.

Trip Reset Switch

--

Inactive

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

Washer Fluid Level

--

OK

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

Instrument Panel Cluster Scan Tool Output Controls

Scan Tool Output Control

Description

Dimming

The IPC increases or decreases the dimming intensity in increments of 20 percent between a range of 0-100 percent.

Display Test

The IPC illuminates all of the indicators for 7 seconds when you select ON.

Display(s) Test

The instrument panel cluster (IPC) drives all of the gages at or below minimum for a few seconds when you select ON, then drives all of the gages at or above maximum for a few seconds. The IPC Display Test will end after one cycle of the gages sweep.