Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1744 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)REPAIR INSTRUCTIONSINFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE REPLACEMENTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: CPA Electrical Connectors, Nuts & SDM

Courtesy of GENERAL MOTORS CORP.

Remove any dirt, grease, or other contaminants from the mounting surface.

NOTE: Refer to Fastener Notice .

Install the SDM to the vehicle with the nuts.
Tighten: Tighten the nuts to 10 N.m (89 lb in).
Install the console assembly. Refer to Front Floor Console Replacement .
Enable the SIR system. Refer to SIR Disabling and Enabling .

IMPORTANT: If you do NOT perform the body control module (BCM) programming procedure, the vehicle option content information which is read by the BCM may be incorrect and a DTC B1001 Option Configuration Error will set in both the SDM and the BCM. This will illuminate the AIR BAG telltale.

Reprogram the BCM. Refer to Body Control Module Programming and Setup .
Refer to Control Module References for programming and setup information.

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 Tools Free Quote Check Quote 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.