Automotive RepairDiagnostics & Troubleshooting4HighAutomotive Technician$ implied

A 2016 Hyundai i20 has a 200mA parasitic battery draw, 130mA above normal, likely caused by multiple modules failing to sleep, and the technician needs a systematic diagnostic workflow to isolate the source.

Existing methods rely on manual fuse pulling and professional hunches, with no dedicated software to guide technicians through parasitic draw diagnosis on modern vehicles with multiple control modules.

Opp. Score

Severity

4High

Willingness to Pay

implied

Added

May 17, 2026

Workarounds Described

disconnecting the data link connector to check for moisture or corrosion
unplugging the AC control module temporarily to test for internal shorts
pulling fuse Hyundai STOP LP to see if draw drops below 100mA

Implied Software Gaps

Guided diagnostic workflow for parasitic draw that integrates multimeter data and vehicle specs to suggest which modules to disconnect next
Reference database of expected sleep currents per module per vehicle model

App Concept

ParasiticDraw Pro

A guided diagnostic app that helps automotive technicians systematically isolate parasitic battery drains. It provides step-by-step testing workflows, records baseline and after-fuse current readings, and logs module sleep behavior to pinpoint the culprit module.

Key Features

Guided step-by-step parasitic draw test workflow with branch logic
Real-time ammeter data import via Bluetooth from compatible multimeters
Automatic logging of current draw per fuse/module with timestamps
Reference database of normal sleep currents for thousands of vehicle models

Target Users: Automotive technicians at independent repair shops and dealerships who regularly diagnose battery drain issues

Revenue Model: $19.99/mo per technician subscription with a 14-day free trial

Part of App Idea

Hyundai Diagnose Pro

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