Vgate iCar 3 BT3.0 V2.2 – ELM327 OBD2 Diagnostic (Android/Windows)

Introduction

The iCar 3 BT3.0 V2.2 communicates via Bluetooth 3.0 and implements ELM327 commands for generic OBD2 diagnostics. It reads and clears engine-related fault codes (P-codes and app-dependent C/B/U), displays real-time data, and supports export/logging in many apps. Auto-sleep activates after inactivity to save the car's battery.*

*Some car models are sensitive to quiescent current – disconnect the adapter during longer periods of inactivity.

Specifications

• Communication: Wireless Bluetooth 3.0 (≈10–20 m)
• Hardware/Software: Version V2.2 / V2.2
• Platforms: Android, Windows (not iOS – choose WiFi/BLE model for iPhone/iPad)
• Chip Platform: ARM-based
• Power: Via OBD port; auto-sleep after ~30 min inactivity
• Connector: 16-pin OBD2 (DLC)
• Form Factor: Compact, "plug-and-leave"
• App Examples: Torque, Car Scanner, OBD Auto Doctor, DashCommand (support may vary by version)

Features & Usage

• Read/Clear DTC: Standard + some brand-specific codes (app-dependent).
• Live Data: RPM, speed, ECT, STFT/LTFT, MAP/MAF, IAT, O2, ignition, etc.
• Freeze-Frame & I/M: Freeze data at fault and monitor status before inspection.
• VIN/CALID/CVN: Mode $09 where available.
• Log/Graph: Real-time graphs and export (CSV/PDF, etc., app-dependent).

Supported OBD Protocols

1. SAE J1850 PWM (41.6 kbaud)
2. SAE J1850 VPW (10.4 kbaud)
3. ISO 9141-2 (5-baud init, 10.4 kbaud)
4. ISO 14230-4 KWP (5-baud init, 10.4 kbaud)
5. ISO 14230-4 KWP (fast init, 10.4 kbaud)
6. ISO 15765-4 CAN (11-bit ID, 500 kbaud)
7. ISO 15765-4 CAN (29-bit ID, 500 kbaud)
8. ISO 15765-4 CAN (11-bit ID, 250 kbaud)
9. ISO 15765-4 CAN (29-bit ID, 250 kbaud)
10. SAE J1939 CAN (29-bit ID, 250 kbaud) – app-dependent
11. USER1 CAN (11-bit ID, 125 kbaud) – app-dependent
12. USER2 CAN (11-bit ID, 50 kbaud) – app-dependent

Note: USER/J1939 usage depends on vehicle/app. OBD2 primarily covers engine/emission.

Manual & Installation Guide (Android/Windows)

Preparation

1. Install a compatible OBD app (e.g., Torque, Car Scanner, OBD Auto Doctor, DashCommand).
2. Locate the car's OBD2 port (DLC), usually under the dashboard on the driver's side.
3. Ensure good battery voltage – low voltage can cause communication errors.

Pair via Bluetooth (Android)

1. Turn ignition ON (engine off). Plug iCar 3 BT into the DLC.
2. Open Bluetooth on your phone → Search for devices → select V-LINK (or similar name).
3. Enter PIN: 1234 (standard). The device pairs and is listed as connected.
4. Open your OBD app → Settings → Adapter Type: Bluetooth → Select device V-LINK.
5. Return to the app's home screen and connect to the ECU. Done!

Pair/Connect in Windows

1. Activate the computer's Bluetooth and pair with V-LINK (PIN 1234).
2. Start your PC app and select the Bluetooth adapter / correct COM port according to the app's guide.

Quick Troubleshooting

• Select Auto-protocol first in the app.
• If "No ECU" – check ignition status, battery voltage, and that the correct adapter type (Bluetooth) is selected.
• Close other apps that may have locked COM/Bluetooth (e.g., previous OBD apps).

Frequently Asked Questions (FAQ)

1. Does it work with iPhone/iPad?

No, this BT3.0 model is designed for Android/Windows. Instead, choose the iCar 3 WiFi or BLE models for iOS.

2. Does it read ABS/airbag?

OBD2 primarily applies to engine/emission. Brand-specific systems require apps/tools with particular support.

3. Can I leave it plugged in?

The adapter has auto-sleep, but some cars are sensitive to quiescent current. Recommendation: unplug during longer periods of inactivity.

4. Do I lose internet on my mobile?

No, this is Bluetooth – mobile data works as usual (unlike WiFi variants).

5. Standard PIN?

The standard is often 1234 (may vary per batch). It's also in the quick guide in the box.

Tips & Best Practices

• Log before clearing: Save DTC + freeze-frame before pressing "Clear".
• Fewer PIDs → faster updates: 6–10 simultaneous PIDs provide smoother graphs.
• Drive-cycle: After "Clear DTC", monitors are reset – drive them again before inspection.
• Stable power: Low battery voltage = poorer communication and incorrect readings.
• Explore alternatives: Vgate/vLinker (BLE/WiFi) or handheld fault code readers for standalone work.

Package Contents

• 1 × Vgate iCar 3 BT3.0 (V2.2) – black
• 1 × Quick Start/Manual (QR code for app download)
• 1 × Color Box

Important Notes & Responsibility

• Functions depend on the vehicle's OBD exposure and the selected app.
• Do not clear fault codes without addressing the root cause. Safety first – do not use the app while driving.
• This model is Bluetooth 3.0 (Android/Windows). For iOS – choose WiFi/BLE.

Summary

The Vgate iCar 3 BT3.0 V2.2 is a fast, affordable, and reliable ELM327 OBD2 adapter for Android/Windows. Its stable BT3.0 link, auto-sleep, and broad app support make it perfect for everything from simple fault code reading to real-time logging. 🔧