This reference app provides descriptions for Diagnostic Trouble Codes (DTCs) specific to Harley Davidson motorcycles. It organizes codes into five categories, including ABS, sensors, and CAN Bus, and includes a list of common abbreviations.



58+ iOS apps & games curated and reviewed
Every iPhone needs a few good trouble codes apps and games. We benchmark 58+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.0★ (14) | No | No | May 2026 | |
| 2 | Free | 2.1★ (7) | Yes | Yes | Aug 2026 | |
| 3 | $3.99 | — | No | No | Jul 2026 | |
| 4 | Free | — | No | Yes | Sep 2026 | |
| 5 | Free | 3.3★ (306) | No | No | Sep 2026 | |
| 6 | Free | 4.6★ (7) | Yes | No | Aug 2026 | |
| 7 | Free was $2.99 | 5.0★ (1) | No | Yes | May 2026 | |
| 8 | Free | — | No | Yes | May 2026 |



This reference app provides descriptions for Diagnostic Trouble Codes (DTCs) specific to Harley Davidson motorcycles. It organizes codes into five categories, including ABS, sensors, and CAN Bus, and includes a list of common abbreviations.



Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.



Access a comprehensive offline database of over 18,500 diagnostic trouble codes for cars. Simply enter a fault code to get detailed descriptions without needing an internet connection or car model selection.


Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.


Instantly look up your car's check engine codes on the go. Access a vast database of OBD2 codes with descriptions and potential causes for all major manufacturers. Save your search history for quick reference.


This app provides definitions and potential causes for On-Board Diagnostics (OBD) trouble codes. It covers a wide range of generic and manufacturer-specific codes for numerous vehicle models, helping users understand and potentially fix error codes.


Restore a witch's cottage after it's been wrecked. Engage in family-friendly Match-3 gameplay with 100 levels, fun mini-games, and customizable options. Decorate and rebuild the home for a Halloween celebration.


Help Jane prepare her ancestral home for a Halloween celebration by restoring furniture and completing over 150 levels. Uncover a surprise as you decorate and get the house ready for the festivities.


Embark on a spooky adventure as a detective investigating a ruined house in a witch forest. Solve match-3 puzzles and engaging mini-games to uncover a mystery and upgrade a magic manor. Get into the Halloween spirit with over 100 levels of challenging fun.


Embark on a spooky Match-3 puzzle adventure through a haunted manor filled with mysteries and challenges. Uncover secrets, collect trophies, and make choices that impact your thrilling Halloween experience.


This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.


Transform your smartphone into a comprehensive car diagnostic tool. Read and clear trouble codes, monitor real-time vehicle performance, and customize your dashboard for a deeper understanding of your car's health. Includes free engine diagnostics with optional advanced features for specific brands.


This app acts as a car diagnostic tool, allowing users to scan fault codes, monitor real-time engine parameters, and log vehicle maintenance. It helps optimize car performance and control fuel consumption by accessing ECU data.


This tool connects to your car's OBD adapter via Bluetooth to collect real-time engine data, read fault codes, and provide solutions. It also records driving data, analyzes performance, and offers a HUD display for a safer and more enjoyable driving experience.


This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.


This app provides direct access to your BMW or MINI vehicle's systems. Read and clear trouble codes from all control units, monitor real-time sensor values, and control features like exhaust flaps and active sound design. It also supports battery registration, DPF regeneration, and service resets.


Access a comprehensive offline database of OBD2 (OBDII) codes for all major car manufacturers. Look up check engine codes, view descriptions, and identify possible causes on the go. Save your search history for quick reference.


A lightweight tool for editing vehicle configuration files like FDL, NCD, and FA. It allows users to save diagnostic reports and compare different vehicle software versions.


This app connects to your car via an OBD2 Bluetooth scanner to diagnose faults, read data like fault codes and sensor readings, and clear error lights. It also offers battery health checks, a customizable dashboard, and driving assistance features. Some models support special functions like maintenance resets.


Decode your car's check engine light with AI. Get plain-language explanations of trouble codes, likely causes, and urgency. Monitor live sensor data and track your car's history.