After replacing battery and alternator, battery warning light remains on in 2019 Ford Explorer, unsure if it's the battery current sensor.

No existing solution mentioned; relies on forums and personal knowledge to diagnose electrical issues.

Severity

3Medium

Willingness to Pay

implied

Added

Jun 1, 2026

Workarounds Described

posts on forums to get diagnostic help
replaces parts (battery, alternator) by guessing

Implied Software Gaps

Vehicle-specific electrical diagnostic assistant that uses OBD-II data to narrow down faulty components
Guided troubleshooting flowchart for common warning lights

App Concept

CarFixDiag Pro

A mobile app that guides DIY car owners through step-by-step electrical diagnostics using OBD-II data and vehicle-specific wiring diagrams. Simply plug in a Bluetooth adapter, answer targeted questions, and get likely faulty component suggestions with repair instructions.

Key Features

Vehicle-specific diagnostic flowcharts for common electrical issues
Integration with Bluetooth OBD-II scanners for live data
Guided sensor testing with voltage/ resistance thresholds
Library of repair videos and wiring schematics

Target Users: DIY car owners and shade-tree mechanics, especially those with modern vehicles experiencing electrical problems.

Revenue Model: $9.99 per vehicle diagnostic report or $19.99/year subscription for unlimited diagnostics.

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