Dorman Tail Light Circuit Board for Chevrolet Trailblazer & Trailblazer EXT 2002–2008 — Plug-and-Play Replacement PCB

This Dorman 923-009 tail light circuit board is a direct plug-and-play replacement that restores tail light operation on compatible Chevrolet Trailblazer and Trailblazer EXT models.

If your tail light stopped working because the factory circuit board melted or burned out, you don’t need a full lens assembly — swapping the failed PCB for this Dorman unit often fixes the issue quickly and affordably. Designed to match the original fit and electrical contacts for the listed model years, the 923-009 gives you a reliable option to bring your tail lamp back to service without complex rewiring.

Which Chevrolet models and years does this board fit?

This replacement circuit board is made for specific Chevrolet Trailblazer and Trailblazer EXT model years; always confirm fitment using your vehicle details before ordering. Compatibility covers early- to late-2000s Trailblazer vehicles where the original tail light printed circuit board is known to fail.

• Trailblazer EXT: compatible with 2002–2006 model years
• Trailblazer (standard): compatible with 2002–2008 model years
• Use the garage tool on the product page to verify exact fitment for your trim

How difficult is installation — can I replace it myself?

Installation is straightforward for someone comfortable with basic automotive exterior work. The replacement is designed to remove the failed board and plug this unit into the existing connector without cutting or splicing wires.

• No special tools beyond common hand tools are typically required
• Remove the tail lamp housing, unfasten the old board, swap in the new PCB, and reconnect
• If an "i" appears in the fitment bar, review notes for any additional verification steps

What are the main benefits of choosing this Dorman circuit board?

Choosing this replacement can save you money versus buying a whole lens assembly and speeds repair time. Dorman manufactures replacement components focused on restoring function while matching original connector locations and mounting points for proper operation.

• Direct replacement design restores light function without rewiring
• Helps avoid the higher cost of replacing the entire tail lamp assembly
• Manufactured by a long-established aftermarket supplier with industry experience

What should I check before purchasing to ensure a correct fit?

Before you buy, enter your vehicle's year, make, model and trim into the on-page garage tool and review the Confirmed Fit indicator. If there’s a blue information icon, hover or click it to see any special fitment notes that could affect compatibility.

• Verify vehicle year and trim in the site’s garage tool for an accurate match
• Inspect connection type and mounting orientation on your existing board before purchase
• Contact customer support if you see fitment warnings or have an uncommon trim level

Who this part is for: This Dorman 923-009 circuit board is ideal for DIYers, independent mechanics, and fleet technicians working on early-2000s Chevrolet Trailblazers and Trailblazer EXTs who need a cost-effective repair to restore tail light function. If the tail lamp has a burnt or melted printed circuit board but the lens and bulbs remain intact, this direct replacement is a practical, time-saving solution.