[Free Solution] Aston Martin Works Service Coachbuilt immobilizer code invalid - what now?

4658 views - Last reply: May 24, 2025
This topic is closed for new replies.

How do I obtain the key code to program a Aston Martin Works Service Coachbuilt key fob?

Hello! We've developed a VIN-based tool to help you get your key code for the Aston Martin Works Service Coachbuilt. Check it out here: VIN Key Code Generator.

Replies (5)

My Aston Martin Works Service Coachbuilt's key code has been a nightmare. Trying this now.

I’m not alone! My Aston Martin Works Service Coachbuilt is doing the same thing.

My Aston Martin Works Service Coachbuilt is basically useless until I get this code. Fingers crossed.

Been here before with my Aston Martin Works Service Coachbuilt. Let’s see if this one works.

Bookmarking this for when I work on my Aston Martin Works Service Coachbuilt this weekend.

Check the news !

Rally Car Experience Day
🏎️ Local Meetup: Rally Car Experience Day
The event local car fans have been waiting for

🗺️ Where: Waterfront Drive
When: May 29 @ 12AM-6PM

Event features:
Kids Activities | Charity Fundraiser

🔩 Forum Members: Post your ride in our event discussion thread! 👍

🧰 Track Prep & Safety Session

👨‍🏫 Instructors:
• Safety Inspector Robert Yang
• Detailer Extraordinaire Lisa Wong

🔌 Hands-On Activities:
• Wiring harness fabrication
• 6-hour intensive training
• Personal coaching

📅 Skills Covered:
Alignment angles | Spring rates | Damping adjustment

🚙 May 14, 2026 at 1:00 PM (6-hour)

✨ Take home custom workshop manual!

Workshop: Track Prep & Safety Session
Forced Induction Tuning Lab

🔋 Forced Induction Tuning Lab

🧰 Instructor: Factory ECU Engineer Dr. Sophia Chen

📱 Workshop Includes:
• Track vs street setup comparisons
• 4-hour intensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

📉 Bonus: Exclusive tuner network discounts

🔌 Next Session: May 7, 2026 at 3:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Insight: Suspension mods should match your intended use (street vs track)

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

Common questions about key programming, fob issues, and replacement options

Key Programming
Programming syncs the key's transponder chip with your car's immobilizer system. The process varies by manufacturer but generally involves: 1) authenticating with the car's computer 2) erasing old keys if needed 3) programming new key codes 4) testing functionality.
Security Systems
A flashing security light often indicates an immobilizer issue. Solid light suggests the system is armed but not recognizing your key. Causes: faulty key chip, damaged antenna ring, low battery, or system needs reprogramming.
Key Tip: Newer cars often require dealer programming for first key replacement
Key Fob Issues
Common causes: dead battery (most common), water damage, internal circuit damage, or the fob lost synchronization with your car. Try replacing the battery first. If that doesn't help, the fob may need reprogramming or replacement.
Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
Key Tip: Store your key code separately from your keys
Lost Keys
Costs vary widely: Basic keys: $50-$150, Transponder keys: $150-$300, Smart keys/fobs: $200-$800, Dealership replacements typically cost 20-50% more than locksmiths. Emergency/lockout service adds $50-$150.
Key Fact: Some insurance policies offer key replacement coverage

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 29, 2026
Professional car key programming for most makes/models. We come to you! Transponder keys, fobs, and smart keys. Same-day service available. All work guaranteed.
Call: 286-913-7870
Immobilizer System Reset
$95+
Posted: Apr 28, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 782-241-0357
Transponder Key Duplication
$65+
Posted: Apr 29, 2026
Get spare keys made before you lose yours! Cuts and programs most transponder keys on the spot. Cheaper than dealerships. 15+ years experience.
Call: 970-653-0013
Dealer Alternative Key Service
40% Less
Posted: Apr 19, 2026
Same quality as dealership without the markup. We have the same programming tools but charge significantly less. All major European, Asian, and domestic brands.
Call: 564-634-0009
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 25, 2026

Smart Key Programming Class

by Auto Key Masters
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools
Workshop
May 28, 2026

Transponder Key Tech Day

by Auto Key Masters
Solutions for when all keys are lost - from code pulling to immobilizer resets
Seminar
May 8, 2026

Smart Key Programming Class

by Immobilizer Experts
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles
Seminar
May 14, 2026

VIN Decoding Workshop

by Locksmith Pro
Live demonstration of the latest anti-theft technologies and bypass prevention methods

Need immediate service? Call our 24/7 hotline: 1-800-KEY-HELP

Want to list your key service? Join our provider network

Last posts on the forum