SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1397 (CELLULAR COMMUNICATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA DEFINITIONS (GEN 6)
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Scan Tool Data Definitions (Gen 6)

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Scan Tool Data Definitions (Gen 6)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
8-Digit GM Part Number

This displays the part number for the vehicle communication interface module (VCIM).

Component Serial Number 13-16

This is the third partition of the serial number.

Date

This is the date as synchronized with global positioning system (GPS) satellites.

Electronic Serial Number

This is the electronic serial number stored in the VCIM which is used by the OnStar® Call Center.

GPS Signal

This displays the status of a received GPS signal.

Julian Date of Build

This displays the day of the year the module was built.

Module I.D.

This displays the version of OnStar® which the vehicle is equipped with.

Signal Strength

This displays a calculated value for cellular reception signal strength. A higher number indicates a stronger signal.

Signal Type

This displays whether the Generation 6 OnStar® VCIM is currently operating in a digital or analog market.

Software I.D.

This displays the 3-digit number of the software version used on the OnStar® VCIM.

Time

This displays the time as synchronized with GPS Satellites.

Transceiver ID

This displays the ID number of the cellular tower that the OnStar® VCIM is using for cellular signal.

VCI Module Station I.D.

This is the station identification number stored in the VCIM which is used by the OnStar® Call Center.

Year Module Build

This displays the year the module was built.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.