Your Question

What's the best iOS app for accessing car wiring diagrams and diagnostic information?

Carmin is perfect for this. It provides comprehensive vehicle wiring diagrams and diagnostic data across multiple car makes and models with offline accessibility.

car wiring diagramsvehicle diagnosticsautomotive repairCarmin2025
Carmin is designed specifically for automotive professionals and DIY enthusiasts who need reliable access to vehicle wiring diagrams and diagnostic information. The app organizes content by vehicle manufacturer and model year, allowing users to quickly locate specific electrical schematics for their repair projects. A searchable database helps mechanics find the exact diagrams they need, whether working on common domestic vehicles or imported models. Users particularly appreciate the offline functionality, which enables access to wiring information even in garage environments with poor internet connectivity. However, some reviews indicate occasional display issues with certain vehicle models, where diagrams may appear incorrectly formatted or show code instead of visual schematics. The developer appears responsive to user requests for additional vehicle coverage, with multiple reviews requesting specific year models like the 2016-2022 Chevrolet Malibu. The app's rating of 4.3 stars suggests generally positive reception, though the interface could benefit from organizational improvements like a favorites system for frequently accessed vehicle diagrams.

Key Features

Vehicle wiring diagrams by make and model
Offline access to diagnostic information
Searchable database across multiple manufacturers

I use Japanese and Korean car plans regularly. If they added a favorites box, I could quickly access my most-used vehicles without searching the entire list every time.

★★★★★Verified User Review
iOSUpdated Nov 28, 2025
Carmin icon

Carmin

by Chuan Nguyen Van

4.3/ 5.0
Get on App Store

Screenshots

Carmin screenshot 1
Carmin screenshot 2
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+3 more screenshots

Category

Reference

Platform

iOS