[Recommended Fix] How do I find the immobilizer code for my 1998 Mitsubishi Diamante?

1585 views - Last reply: February 24, 2025
This topic is closed for new replies.
Frank
Member since January 2022 • 62 posts

Where can I get the key code to make a new key for my 1998 Mitsubishi Diamante?

Posted on February 24, 2025
Adminbot
Staff Member • 858 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 1998 Mitsubishi Diamante. Check it out here: VIN Key Code Generator.

Posted on February 25, 2025

Replies (5)

Whiteknight
Member • 136 posts

I tried this with my 1998 Mitsubishi Diamante but still no luck. Any suggestions?

February 25, 2025 Reply
Karmapolice
Member • 47 posts

I tried this trick and it actually worked on my 1998 Mitsubishi Diamante!

February 26, 2025 Reply
Flashgordon
Member • 99 posts

My 1998 Mitsubishi Diamante won’t budge without the code. Hoping this helps.

February 27, 2025 Reply
Rocketman
Member • 11 posts

Exactly what I was looking for to fix my 1998 Mitsubishi Diamante.

February 28, 2025 Reply
Purplerain
Member • 114 posts

Can’t believe this worked on my 1998 Mitsubishi Diamante. Huge thanks!

March 01, 2025 Reply

Check the news !

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

📍 Where: Fairgrounds Parking Lot
📅 When: May 22 @ 12AM-4PM

Event features:
Cruise Night | Raffle Prizes | Food Trucks

🔧 Forum Members: Special section just for forum members! 👋

🧰 Track Prep & Safety Session

👨‍🏫 Instructors:
• Paint Specialist Sarah Chen
• Master Technician Carlos Rodriguez (20+ years experience)

🔌 Hands-On Activities:
• Paint correction demonstrations
• 4-hour intensive training
• Personal coaching

📅 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🚙 May 15, 2026 at 12:00 PM (4-hour)

✨ Bring your own project - we'll help you work on it!

Workshop: Track Prep & Safety Session
Suspension Tuning for Speed

🚀 Suspension Tuning for Speed

⚙️ Instructor: Data Acquisition Expert Priya Patel

📊 Workshop Includes:
• Live dyno tuning demonstrations
• 6-hour comprehensive hands-on training
• Cam profiles | Compression ratios | Octane requirements

🔩 Bonus: Live Q&A replay available

🏎️ Next Session: May 9, 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
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 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: Avoid exposing key fobs to water or extreme temperatures
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
Yes, a skilled auto locksmith can extract the broken key and make a replacement. They can often do this without damaging the ignition cylinder. The new key will need programming if it has a transponder chip.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Fob Issues
Many cars have a resync procedure: 1) Press lock/unlock buttons while near the car 2) Insert key and turn ignition on/off in a specific pattern 3) Use a sequence of button presses. Check your manual for exact steps - procedures vary widely by manufacturer.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Fact: Some insurance policies offer key replacement coverage

🔑 KEY SERVICES CLASSIFIEDS

Immobilizer System Reset
$95+
Posted: Apr 26, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 925-858-1538
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: 516-461-5502
Car Key Extraction Service
$45+
Posted: May 1, 2026
Broken key stuck in ignition or door? We can remove it without damage and make new keys same day. Emergency service available 24/7 for lockouts.
Call: 902-204-9773
Anti-Theft System Repair
$85+
Posted: Apr 21, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 440-241-3985
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 23, 2026

Anti-Theft System Demonstration

by VIN Decoder Pros
Solutions for when all keys are lost - from code pulling to immobilizer resets
Seminar
May 31, 2026

Lost Key Solution Roadshow

by Car Key Solutions
Learn dealer-level programming techniques normally only available at franchise shops
Workshop
May 7, 2026

Smart Key Programming Class

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
May 13, 2026

Mobile Key Programming Clinic

by Auto Key Masters
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