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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 682 (BODY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA DEFINITIONS
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Scan Tool Data Definitions

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Scan Tool Data Definitions
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Battery Voltage

The scan tool displays the value of the battery voltage.

Ignition 1

The scan tool displays Active when the ignition switch is in the RUN or CRANK position.

Ignition 3

The scan tool displays Active when the ignition switch is in the RUN position only.

Ignition Power Mode

The scan tool displays the position of the ignition switch. The scan tool displays Off, Run, Crank and Unknown. The word Unknown is displayed when the BCM can not determine the position of the ignition switch.

Julian Date

The scan tool displays the date that the body control module (BCM) was manufactured.

Key In Ignition

The scan tool displays Yes when the ignition key is fully inserted into the ignition switch cylinder. The BCM uses this data to control the chime feature.

Module Part Number

The scan tool displays the part number assigned to the BCM that is currently in the vehicle.

Software Design Suffix

The scan tool displays the version of the software part number in the BCM.

Software Part Number

The scan tool displays the software identification number in the BCM.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.