Commercial truck and engine diagnostic trouble code solutions

Pricing

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Sign up for a free account and start searching today. There’s no catch. It really is free and it always will be free. You’ll be able to search for fault codes and view basic diagnostic code information. On the companion mobile app, you’ll be able to access your search history, leave comments, and engage with the community for free – forever! No credit card required.

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Our Premium paid version gives you access to everything in the free version and adds access to step-by-step troubleshooting trees and detailed wiring diagrams.

For less then $0.30 per day you can have unlimited access to truck repair information like never before. Website subscriptions are available in weekly, monthly, or annual subscriptions. All forms of payments are accepted, and access to the website is granted immediately.

Get repair information

Get detailed fault conditions and repair information with step-by-step  troubleshooting trees – available exclusively with a premium membership. 

Get wiring diagrams

Get access to detailed, accurate, easy-to-read, standardized and color coded wiring diagrams – available exclusively with a premium membership. 

Flexible payment options

Truck Fault Codes offers three levels of paid membership to fit any budget or use case.

Want to test the waters on a premium membership? Try our low cost 7 Day membership. 

Want to go month-to-month? No problem. Just sign up for 30 Day Membership.  No annual commitment required.  

Want to save as much as possible? Get a 365 Day Subscription with convenient auto-renewal.