Brake lights on a 2019 VW Atlas stop working after water damage to tail light assemblies, and even after replacing parts and verifying signals with a diagnostic tool, the problem persists with no fault codes.

Existing diagnostic tools like OBDeleven can read live data and adaptations but cannot guide a DIY mechanic step-by-step through complex electrical troubleshooting involving multiple components (BCM, wiring, connectors) when no fault codes are present.

Opp. Score

Severity

4High

Willingness to Pay

implied

Added

May 20, 2026

Implied Software Gaps

AI-guided step-by-step electrical troubleshooting app that integrates with OBD2 scanners and provides wiring diagrams

App Concept

AutoWiz Electrical Troubleshooter

An AI-powered diagnostic app that guides DIY mechanics and technicians through complex electrical faults step-by-step. It integrates with common OBD2 scanners, analyzes live data and component responses, and provides a decision tree to isolate the root cause even when no codes are set.

Key Features

Connect to popular scanners (OBDeleven, VCDS, etc.) to pull live data and fault codes
Interactive step-by-step troubleshooting guided by AI based on symptom and vehicle model
Component-level wiring diagrams and pinout verification for common repair tasks
Fault path analysis that suggests next tests (e.g., check for voltage at connector X) even when no codes are present

Target Users: DIY car enthusiasts and small independent repair shops working on modern vehicles with complex electrical systems

Revenue Model: $9.99 per vehicle-specific troubleshooting session or $19.99/month subscription for unlimited access

Existing Solutions Mentioned

OBDeleven scanner and app

Part of App Idea

Brake lights on a 2019 VW Atlas stop working after water damage to tail light assemblies, and even after replacing parts and verifying signals with a diagnostic tool, the problem persists with no faul

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