[Answered] Trying to flash ECU on 2017 Infiniti Q70 L, code mismatch error

1191 views - Last reply: January 08, 2025
This topic is closed for new replies.

Trying to program a new key - where's the key code on my 2017 Infiniti Q70 L?

Hello! We've developed a VIN-based tool to help you get your key code for the 2017 Infiniti Q70 L. Check it out here: VIN Key Code Generator.

Replies (5)

Same issue here with my 2017 Infiniti Q70 L, let me know if it works.

Trying to avoid reprogramming costs for my 2017 Infiniti Q70 L. This is a lifesaver.

This is exactly what I need for my 2017 Infiniti Q70 L, thanks for posting!

I'm stuck trying to get the key code for my 2017 Infiniti Q70 L, hope this helps.

My 2017 Infiniti Q70 L just blinks. I think this might fix it.

Check the news !

Drift Challenge Series
🏎️ Local Meetup: Drift Challenge Series
Show off your ride and meet fellow car lovers

🗺️ Where: City Park Pavilion
When: May 11 @ 10AM-8PM

Event features:
Judged Show | People's Choice Awards

🔩 Forum Members: Post in the thread to reserve your spot! 👍

🧰 Hands-On Engine Tuning Workshop

👨‍🏫 Instructors:
• Safety Inspector Robert Yang
• Race Engineer Emily Torres

🔌 Hands-On Activities:
• Live engine tuning session
• 6-hour intensive training
• Personal coaching

📅 Skills Covered:
Color matching | Clear coat application | Scratch repair

🚙 May 12, 2026 at 10:00 AM (6-hour)

✨ Tools and materials provided - just bring your enthusiasm!

Workshop: Hands-On Engine Tuning Workshop
Dyno Tuning Intensive Course

🏁 Dyno Tuning Intensive Course

🔧 Instructor: Classic Muscle Tuner Tom 'Torque' Jenkins

💻 Workshop Includes:
• Hands-on ECU flashing sessions
• 6-hour comprehensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

📈 Bonus: Free dyno pull for first 10 signups

⏱️ Next Session: May 11, 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

Security Systems
Not recommended. Bypassing requires specialized knowledge and may violate anti-theft laws. Proper solutions: 1) Get correctly programmed keys 2) Replace faulty immobilizer components 3) Have dealer reset the system if keys are lost.
Key Tip: Store your key code separately from your keys
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: Keep spare keys in a faraday bag to prevent signal amplification theft
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 Tip: Store your key code separately from your keys
Key Programming
Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
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.
Key Tip: Consider key insurance for expensive smart keys
Key Fact: The average driver will lose 1-2 car keys during ownership

🔑 KEY SERVICES CLASSIFIEDS

Immobilizer System Reset
$95+
Posted: Apr 19, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 445-307-5930
Transponder Key Duplication
$65+
Posted: Apr 23, 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: 858-603-9306
Car Key Extraction Service
$45+
Posted: Apr 22, 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: 860-737-3799
Key Fob Case Replacement
$35
Posted: Apr 28, 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: 448-912-0821
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 3, 2026

Lost Key Solution Roadshow

by Immobilizer Experts
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 9, 2026

Lost Key Solution Roadshow

by The Key Lab
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools
Workshop
May 17, 2026

Transponder Key Tech Day

by Fob Fixers
Learn dealer-level programming techniques normally only available at franchise shops
Seminar
May 28, 2026

Mobile Key Programming Clinic

by Immobilizer Experts
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles

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