[It Worked!] 1992 Plymouth Sundance won’t respond to key fob - immobilizer problem?

4613 views - Last reply: April 01, 2025
This topic is closed for new replies.
Flashgordon
Member since April 2023 • 51 posts

Where's the key code hidden on my 1992 Plymouth Sundance for key programming?

Posted on April 01, 2025
Adminbot
Staff Member • 585 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 1992 Plymouth Sundance. Check it out here: VIN Key Code Generator.

Posted on April 02, 2025

Replies (3)

Purplehaze
Member • 39 posts

My 1992 Plymouth Sundance might finally get back on the road thanks to this.

April 02, 2025 Reply
Diana
Member • 70 posts

I’m in the same boat with my 1992 Plymouth Sundance. This looks promising.

April 03, 2025 Reply
Alphamax
Member • 34 posts

My 1992 Plymouth Sundance needs a new key but I need the code first. Help!

April 04, 2025 Reply

Check the news !

Off-Road & 4x4 Jamboree
🚗 Local Meetup: Off-Road & 4x4 Jamboree
A casual meet for all makes and models

📍 Where: Brewery District
📅 When: May 2 @ 10AM-6PM

Event features:
Car Audio Competition | Model Car Show

🔧 Forum Members: Forum staff will be there - come say hi! 👋

🔧 Suspension Setup Clinic

👨‍🔧 Instructors:
• Safety Inspector Robert Yang
• Electronics Expert Priya Patel

🛠️ Hands-On Activities:
• Ceramic coating application
• 4-hour intensive training
• Personal coaching

📝 Skills Covered:
Metal finishing | Bondo application | Rust treatment

🚗 May 10, 2026 at 10:00 AM (4-hour)

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

Workshop: Suspension Setup Clinic
Performance Engine Building 101

🏁 Performance Engine Building 101

🔧 Instructor: Factory ECU Engineer Dr. Sophia Chen

💻 Workshop Includes:
• Boost control mapping exercises
• 6-hour comprehensive hands-on training
• Cam profiles | Compression ratios | Octane requirements

📈 Bonus: Live Q&A replay available

⏱️ Next Session: April 23, 2026 at 1:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Did you know? Proper tuning can add 20-30% more power from the same hardware

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).
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: Avoid exposing key fobs to water or extreme temperatures
Cost & Options
You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Key Fob Issues
This typically indicates: weak fob battery (replace first), damaged fob antenna, or issues with your car's receiver (often in the door handle or rearview mirror). Environmental interference from other electronics can also reduce range.
Key Tip: Store your key code separately from your keys
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 Fact: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 20, 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: 270-908-5600
Key Fob Repair & Battery Replacement
$25+
Posted: Apr 17, 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: 207-485-8102
Transponder Key Duplication
$65+
Posted: Apr 16, 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: 488-585-0667
Fleet Key Programming
Call
Posted: Apr 18, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 939-323-0569
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 8, 2026

Lost Key Solution Roadshow

by Mobile Key Tech
Become certified in vehicle security systems with our intensive 2-day course
Seminar
May 4, 2026

VIN Decoding Workshop

by Auto Key Masters
Solutions for when all keys are lost - from code pulling to immobilizer resets
Seminar
May 4, 2026

Smart Key Programming Class

by VIN Decoder Pros
Learn how to extract key codes from VIN numbers and decode vehicle security information
Workshop
Apr 22, 2026

Key Fob Repair Training

by Fob Fixers
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