2003 Trailblazer Ext ECM Programmed To Your VIN – Part #89017750

2003 GM TRAILBLAZER EXT PCM – Programmed To Your VIN

Is your 2003 Trailblazer Ext’s engine computer malfunctioning, causing you to stall on the road or experience diagnostic errors? This pre-programmed Powertrain Control Module (PCM) is specifically designed for your vehicle, ensuring seamless integration and optimal performance. By reprogramming the module with the latest updates from GM using your Vehicle Identification Number (VIN), you’ll enjoy improved engine efficiency, smoother shifting, and enhanced overall driving experience. This direct replacement part is guaranteed to fit your 2003 Trailblazer Ext, replacing the following compatible part numbers: 89017750, 12582605, 12589463, 12602802, 89017734, 28042802.

Key Features & Benefits

• 100% Remanufactured in the USA for exceptional quality and reliability.
• Pre-programmed with the latest updates from GM, ensuring optimal engine performance and efficiency.
• Direct replacement for your faulty or malfunctioning PCM, eliminating the need for costly repairs or replacements.
• Ensures seamless integration with your vehicle’s existing systems, minimizing potential issues during installation.
• Guaranteed to restore smooth shifting and prevent diagnostic errors, enhancing overall driving experience.

Common Problems Solved

This pre-programmed PCM solves a range of common problems affecting the 2003 Trailblazer Ext, including:

• Engine stalling or hesitation while driving.

• Diagnostic errors or trouble codes related to engine performance.

• Unstable idling or rough engine operation.

Simple Installation Process

1. Submit your VIN after purchase to enable us to program the PCM with the latest updates from GM.
2. Locate and disconnect the battery to prevent any electrical shocks or damage.
3. Remove the old PCM by disconnecting the wiring harness and carefully pulling it out of its mounting bracket.
4. Install the new pre-programmed PCM, ensuring all connections are secure and tightened properly.
5. Reconnect the battery and start your engine to test the PCM’s functionality.

Guaranteed Fitment