01
Live Vehicle Data
Stream real-time engine stats from a Bluetooth LE OBD2 adapter — Vgate iCar Pro BLE, LELink, vLinker and similar.
Connect. Diagnose. Drive.
C4 Link App
Pair a Bluetooth OBD2 adapter and read your car's live data and fault codes right in the browser.
Watch engine data stream in real time and see exactly what your check engine or ABS light is trying to tell you — in plain English, with likely causes and what to check first.
c4link.app →What it does
02
Fault Codes in Plain English
Diagnostic trouble codes decoded with likely causes and what to check first.
C4 Link — Diagnostics
screenshot slot
03
Track / Drift Mode
A dedicated mode for the track, with Pro features for serious drivers.
C4 Link — Track Mode
screenshot slot
04
Demo Scenarios
Explore healthy vehicles, check-engine and ABS scenarios, and manufacturer-specific codes without hardware.
05
Runs in the Browser
No installs — connect on Chrome or Edge on desktop or Android and go.
C4 Link — Web Based
screenshot slot
Connect. Diagnose. Drive. Pull up.