[Solved] Code card lost - Derbi Mulhacen won't accept new key

2149 views - Last reply: March 19, 2025
This topic is closed for new replies.
Jazzcat
Member since July 2023 • 57 posts

How to obtain the key code to make keys for my Derbi Mulhacen?

Posted on March 19, 2025
Adminbot
Staff Member • 1818 posts

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

Posted on March 20, 2025

Replies (5)

Alphadog
Member • 149 posts

Really hoping this unlocks my Derbi Mulhacen's mystery code.

March 20, 2025 Reply
Reddwarf
Member • 76 posts

I really hope this trick works on my Derbi Mulhacen.

March 21, 2025 Reply
Byteme
Member • 82 posts

Will this work for older Derbi Mulhacens? Mine's a 2009.

March 22, 2025 Reply
Urbanninja
Member • 40 posts

I tried this with my Derbi Mulhacen but still no luck. Any suggestions?

March 23, 2025 Reply
Alphadog
Member • 20 posts

Appreciate any advice—my Derbi Mulhacen won’t recognize the key.

March 24, 2025 Reply

Check the news !

Drift Challenge Series
🚗 Local Meetup: Drift Challenge Series
The best local cars all in one place

📍 Where: Shopping Mall Parking Lot
📅 When: May 24 @ 11AM-8PM

Event features:
Club Displays | Trunk Swap Meet

🔧 Forum Members: Post your ride in our event discussion thread! 👋

🧰 Track Prep & Safety Session

👨‍🏫 Instructors:
• Race Engineer Emily Torres
• Master Technician Carlos Rodriguez (20+ years experience)

🔌 Hands-On Activities:
• Suspension geometry setup
• 6-hour intensive training
• Personal coaching

📅 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🚙 May 13, 2026 at 10:00 AM (6-hour)

✨ Lunch and refreshments included!

Workshop: Track Prep & Safety Session
Performance Engine Building 101

🏁 Performance Engine Building 101

🔧 Instructor: Suspension Guru Alex Petrov

💻 Workshop Includes:
• Budget performance hacks
• 6-hour comprehensive hands-on training
• Air/fuel ratios | Timing maps | Boost curves

📈 Bonus: Custom tune file included

⏱️ Next Session: May 2, 2026 at 12:00 PM

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 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.
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.
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.
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: Replace key fob batteries every 1-2 years as preventative maintenance
Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
Key Fact: Smart keys use radio frequencies between 125 kHz and 2.4 GHz

🔑 KEY SERVICES CLASSIFIEDS

Key Fob Repair & Battery Replacement
$25+
Posted: Apr 23, 2026
Fob not working? We fix broken buttons, replace batteries, and resync to your vehicle. Most repairs done while you wait. Water damage specialists available.
Call: 354-945-6909
Immobilizer System Reset
$95+
Posted: Apr 25, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 385-833-7019
Anti-Theft System Repair
$85+
Posted: Apr 22, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 300-332-6921
Dealer Alternative Key Service
40% Less
Posted: Apr 28, 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: 905-827-5789
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 3, 2026

Transponder Key Tech Day

by The Key Lab
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 24, 2026

Immobilizer System Seminar

by VIN Decoder Pros
Hands-on experience with the newest transponder key cloning and programming equipment
Seminar
May 29, 2026

Immobilizer System Seminar

by Locksmith Pro
Step-by-step instruction for repairing common key fob issues including button and circuit problems
Workshop
May 20, 2026

Dealer-Level Programming Workshop

by VIN Decoder Pros
Become certified in vehicle security systems with our intensive 2-day course

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