[Confirmed] Programmed new key but PEUGEOT 806 2000 HDI still won’t start - code?

1563 views - Last reply: December 20, 2024
This topic is closed for new replies.

Trying to program a spare key - where's the key code on my PEUGEOT 806 2000 HDI?

Hello! We've developed a VIN-based tool to help you get your key code for the PEUGEOT 806 2000 HDI. Check it out here: VIN Key Code Generator.

Replies (3)

I have the same PEUGEOT 806 2000 HDI and I'm also trying to find the key code.

My PEUGEOT 806 2000 HDI might finally get back on the road thanks to this.

I’ll try this and update how it goes with my PEUGEOT 806 2000 HDI.

Check the news !

JDM Enthusiasts Meet
🚗 Local Meetup: JDM Enthusiasts Meet
The best local cars all in one place

📍 Where: Community College Campus
📅 When: May 28 @ 10AM-4PM

Event features:
Kids Activities | Charity Fundraiser

🔧 Forum Members: First 50 forum members get free dash plaques! 👋

🔩 Paint & Bodywork Techniques

👩‍🏭 Instructors:
• Custom Fabricator Mike 'Wrench' O'Connor
• Suspension Guru David Klein

⚙️ Hands-On Activities:
• Wiring harness fabrication
• 4-hour intensive training
• Personal coaching

📋 Skills Covered:
Multimeter use | Wiring diagrams | Short circuit tracing

🏎️ May 15, 2026 at 9:00 AM (4-hour)

💡 Free parts giveaway for all attendees!

Workshop: Paint & Bodywork Techniques
Suspension Tuning for Speed

🔋 Suspension Tuning for Speed

🧰 Instructor: Engine Builder Mike O'Connor (1000+ HP builds)

📱 Workshop Includes:
• Data interpretation techniques
• 6-hour comprehensive hands-on training
• Cooling system optimization | Heat management

📉 Bonus: Personalized setup recommendation

🔌 Next Session: May 12, 2026 at 9:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Pro Tip: Supporting mods (fuel system, cooling) are often needed for big power gains

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Key Programming
Common reasons: wrong key type for your vehicle, anti-theft system needs reset, low car battery voltage during programming, or the key isn't properly synced. Some cars also have programming limits (only 2-4 keys can be registered).
Key Tip: Consider key insurance for expensive smart 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 Programming
Some vehicles allow DIY key programming using specific sequences (like turning ignition on/off with original keys). However, most modern cars require specialized equipment only locksmiths or dealers have. Check your owner's manual for your specific model.
Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
Key Tip: Consider key insurance for expensive smart keys
Security Systems
An anti-theft system that prevents the engine from starting unless it detects the correct transponder chip in the key. The chip sends a unique code to the car's computer when you turn the ignition. No match = no start, even with a physically matching key.
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Key Fact: The average driver will lose 1-2 car keys during ownership

🔑 KEY SERVICES CLASSIFIEDS

Lost Car Key Replacement
$120+
Posted: Apr 24, 2026
Lost all your keys? We can cut and program new ones even without originals. Dealership alternative at 40% less. Proof of ownership required. Serving all major brands.
Call: 782-557-2748
Immobilizer System Reset
$95+
Posted: Apr 27, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 843-644-5557
Transponder Key Duplication
$65+
Posted: Apr 24, 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: 516-523-1474
Key Fob Case Replacement
$35
Posted: Apr 26, 2026
Cracked or damaged fob housing? We transfer your electronics to a new case. Multiple color options available. Most models in stock. 15-minute service.
Call: 920-373-1090
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 20, 2026

Mobile Key Programming Clinic

by Fob Fixers
Solutions for when all keys are lost - from code pulling to immobilizer resets
Seminar
May 11, 2026

VIN Decoding Workshop

by VIN Decoder Pros
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 24, 2026

Anti-Theft System Demonstration

by Car Key Solutions
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles
Seminar
May 18, 2026

Dealer-Level Programming Workshop

by Auto Key Masters
Step-by-step instruction for repairing common key fob issues including button and circuit problems

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