Vgate vLinker BM+ BLE V2.2 OBD2 ELM327 – Bluetooth 4.0 Car Scanner (iOS/Android)

Introduction

The Vgate vLinker BM+ BLE V2.2 is designed for today's connected diagnostic workflow: fast BLE connection, low latency, high data throughput, and secure wireless communication. With a USART data buffer of up to 2 KB and the ability to send OBD requests up to 1023 bytes, the BM+ also handles apps and functions that require longer messages (e.g., certain coding modes or extended services in compatible apps).

Unlike simpler dongles, the BM+ is designed not to drain the car battery. It automatically enters sleep mode when the car is idle and can be woken up in several ways (bus activity, ignition, voltage change). Additionally, it features over/under-voltage protection, over-current/temperature protection, and firmware updates that keep the adapter current over time.

The result is a compact, stable, and future-proof ELM327-compatible adapter that works equally well for quick fault code reading as for advanced live data logging and app-controlled functionality.

Specifications

• Product Name: Vgate vLinker BM+ BLE (Bluetooth Low Energy) V2.2
• Hardware Version: V2.2 (support for future updates)
• Communication: Bluetooth 4.0 / BLE (dual-mode according to supplier's description)
• Platforms: iOS / Android / Windows
• Operating Current: approx. 51 mA
• Sleep Current: approx. 3 mA (Automatic Sleep)
• Baud Rate: up to 230.4 kbps
• USART Buffer: up to 2 KB
• Max OBD Request: up to 1023 bytes (long frames)
• Security: TP transmission protocol (secured wireless communication)
• Protection: Over/under-voltage, over-current, over-temperature, battery monitoring
• Functions (app-dependent): DTC (read/clear), MIL, live data, freeze-frame, I/M readiness, VIN/CALID/CVN, logger, real-time alarms
• Compatibility: Fully ELM-AT compatible (ELM327/ELM329)
• Wake-up: up to 3 ways (e.g., battery voltage drop, OBD bus activity, ignition)
• Updates: Free firmware updates (via app/manufacturer flow)
• Physical: Compact, discreet format that does not interfere with legroom
• OBD2 Port: Standard 16-pin (vehicle), female connector in the adapter

Features & Use Cases

Core Features

• Fast BLE Connection: Stable, energy-efficient communication to iOS/Android (and Windows via compatible BT stack).
• Advanced Data Pipeline: 230.4 kbps, 2 KB buffer, 1023-byte requests for demanding apps.
• BatterySaver: Intelligent sleep/wake – can remain plugged into the OBD port without draining the battery.
• Secure Wireless: TP protocol minimizes risk of intrusion/interference.
• Broad App Support: Works with more third-party apps than most adapters (see Apps).
• Firmware Updates: Improvements and bug fixes even after purchase.

Diagnosis & Monitoring

• DTC Management: Read stored, pending, and permanent codes; clear MIL after remedy.
• Live Data: Real-time stream (ECT, STFT/LTFT, MAP/MAF, O2, RPM, speed, etc.).
• Freeze-frame: Immediate context when a DTC was set.
• I/M Readiness: Inspection status for emissions monitors.
• VIN/CALID/CVN: Vehicle and calibration data (Mode $09 where available).
• Logger & Alarms: Logging of PIDs, real-time alarms (app-dependent).

Typical Use Cases

• Quick Troubleshooting: Read DTC, check freeze-frame, and verify with live data.
• Pre-inspection: Check readiness and address monitors in time.
• Project/Tuning: Monitor fuel trims, O2 dynamics, boost pressure (MAP), and temperatures.
• Fleets: Log recurring faults over time and share reports.

Compatibility & Protocols

Vehicle Support: OBD2/EOBD-compatible cars with a 16-pin DLC. Generally: USA gasoline 1996+, EU gasoline approx. 2001+, EU diesel approx. 2004+. Exceptions occur (grey imports, transitional years). Always verify that the vehicle has an OBD2 port and exposes data via the OBD standard.

Supported OBD-II Protocols (9 types)

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)

Note: OBD2 primarily covers engine/emissions (Mode $01–$0A). Brand-specific systems (ABS, airbag, BCM, etc.) usually require an app/adapter with extended support and possible licenses. The BM+ can utilize extended services in many apps where the app supports them.

Apps & Software Support (Examples)

iOS

• OBD Fusion – comprehensive OBD2, dashboards, logging, reports.
• Car Scanner ELM OBD2 – quick scan, I/M, O2 tests, HUD mode.
• Carista – service functions and coding on selected brands (requires in-app purchase).
• BimmerCode / BimmerLink – BMW/MINI coding & diagnosis (model/app requirements apply).

Android

• Torque (Lite/Pro) – classic live data, DTC, and logging.
• Car Scanner – modern UI, fast I/M, test, and dashboards.
• OBD Auto Doctor – reports, logging, multi-platform.
• JScan – Jeep/Dodge/RAM (model-specific functions, license required).

Windows

• OBD Auto Doctor PC – read/clear DTC, live data, logging.
• ScanMaster/similar – classic PC programs (BT stack required).

Tip: Want to compare BM+ with other Bluetooth models? See our category Vgate/vLinker. Prefer handheld without an app? Check out the handheld collection.

Manual & Installation Guide (iOS/Android/Windows)

Preparation (All Platforms)

1. Verify that the car has a 16-pin OBD2 socket under the dashboard.
2. Ensure good battery voltage (low voltage can result in "No Comm").
3. Install your chosen OBD app (see section Apps).

Step A – Connect the adapter in the car

1. Turn off the ignition.
2. Insert the vLinker BM+ into the OBD2 port until it's firmly seated.
3. Turn the ignition to ON (engine off) and wait 3–5 seconds for initialization.

Step B – Pairing & Connection

iOS (BLE flow within the app)

1. Open your OBD app. On iOS, BLE connection usually happens inside the app (not in the BT settings).
2. Select Connect / Adapter → BLE/Bluetooth → select vLinker BM+.
3. Confirm connection. The app normally selects Auto protocol.

Android

1. Enable Bluetooth on your phone.
2. Open the app → Adapter/Settings → select Bluetooth and the device vLinker BM+.
3. If a PIN is requested: 0000 or 1234 (varies – many apps handle BLE internally without a PIN).

Windows

1. Activate your computer's BT/BTLE support (dongle if needed).
2. Pair in Windows BT settings or directly via the program (depending on software).
3. Select the correct COM/BT port in the program and "Connect".

Step C – Basic Diagnosis

1. Quick Scan: Read MIL, codes, and monitors (I/M).
2. DTC: Note stored/pending/permanent codes and their descriptions.
3. Freeze-frame: Examine values at the moment of error.
4. Live Data: Select key PIDs (ECT, STFT/LTFT, O2, MAP/MAF, RPM, speed) and monitor.
5. Remedy & Clear: After repair – clear DTC, perform drive cycle, and check I/M again.

Step D – Logging & Report

• Enable logging (CSV/report) in the app for intermittent faults.
• Export a shareable report after a test drive.

Troubleshooting – Common Scenarios

• App not finding adapter (iOS): Search and connect via the app's own BLE menu, not via iOS BT settings.
• No OBD communication: Check fuses/12V in DLC, ignition set to ON, select Auto protocol again.
• Losing BT connection: Minimize distance/interference sources, disable other BT-heavy devices.
• Monitors are "Not Ready" after Clear: Perform a correct drive cycle until I/M becomes "Ready".
• High battery consumption: BM+ goes into sleep (~3mA). For long-term parking – unplug for maximum safety.
• Long frames required: Ensure the app supports extended frame format; BM+ handles up to 1023-byte requests.

Frequently Asked Questions (FAQ)

1. What differentiates vLinker BM+ from simpler ELM327 dongles?

Larger buffers (2 KB), longer OBD requests (1023 bytes), higher baud rate (230.4 kbps), BatterySaver, more secure TP protocol, and multiple wake-up modes.

2. Is it compatible with iPhone?

Yes. It's a BLE device and typically connects via the app on iOS.

3. Does it work on Android and Windows?

Yes. Android via BLE/BT; Windows via compatible BT stack/program.

4. Can I leave the adapter plugged in?

Yes. BatterySaver draws approx. 3 mA in sleep mode. For long-term parking: unplug to eliminate all idle current.

5. Are my favorite apps supported?

BM+ has broad app support: Torque, Car Scanner, OBD Fusion, Carista, BimmerCode/BimmerLink, JScan, OBD Auto Doctor, etc.

6. Can I read ABS/airbag?

OBD2 primarily concerns engine/emissions. Some apps have brand-specific modules, but support varies by car and often requires licenses.

7. What does a 1023-byte OBD request mean?

The ability to handle longer data frames that certain coding/service functions require (if the app/car supports them).

8. Do I need to pair in iOS settings?

Usually not. Select the adapter in the app's BLE list.

9. How fast is 230.4 kbps in practice?

It provides faster PID updates and more reliable logging than simple BT2.0 dongles – especially with many selected PIDs.

10. Does BM+ work on 24V trucks?

BM+ is designed for passenger car OBD2 (12V). For 24V/J1939, specialized tools are recommended.

11. Can I update the firmware?

Yes. BM+ supports free firmware updates (refer to manufacturer's/app's instructions).

12. Why do I see "N/A" on some sensors?

The vehicle does not expose these PIDs via OBD2, hence "N/A" is returned.

13. Clearing codes doesn't turn off the light?

Recurring faults will turn on the MIL again. Address the root cause before clearing.

14. Does BM+ support ELM-AT commands?

Yes, fully compatible with ELM327/ELM329 AT commands as per specification.

15. Logging for track-day?

Yes – select fewer PIDs for a higher update frequency and use the app's CSV/report export.

16. Is the communication "hacker-proof"?

BM+ uses TP protocol and secure routines for wireless; keep OS/app updated and change default PIN where applicable.

17. Why does the app disconnect when I start the engine?

Voltage dips can affect BT. Restart the app or wait to connect until the engine is running stably.

18. Best app for BMW/MINI?

BimmerCode/BimmerLink (compatibility/features vary by model/year).

19. How do I get monitors "Ready" quickly?

Perform a correct drive cycle with steady speed, cold start, deceleration phases, and correct fuel level (EVAP often requires half tank).

20. Support for long-frame coding on my brand?

Depends on the app and car. BM+ handles long frames; the app must be able to generate the correct services and the car must accept them.

Tips & Best Practices

• Fewer PIDs = Faster Updates: Select 6–10 key values for logging.
• Document Before Clear: Save DTC and freeze-frame for future reference.
• Close Other BT Apps: Minimize conflicts when diagnosing.
• Update Everything: App + adapter firmware = best stability.
• Compare Products: See more Vgate/vLinker adapters or handheld devices if you prefer standalone units. 🔧

Package Contents

• 1 × Vgate vLinker BM+ BLE OBD2 Adapter
• 1 × User Manual
• 1 × Packaging Box

Important Notices & Disclaimer

• Functions depend on what the car exposes via OBD2 and the selected app.
• OBD2 primarily concerns engine/emissions – other systems require an app/adapter with brand support.
• Do not leave your phone unlocked while driving; never look at the app during active driving.
• All use is at your own risk. Follow laws and safety regulations.

Summary

The Vgate vLinker BM+ BLE V2.2 combines modern BLE communication with high data capacity and security. With a 2 KB buffer, 1023-byte OBD requests, 230.4 kbps, and BatterySaver, it is a smart choice for everything from quick troubleshooting to advanced logging and app-controlled functions. If you want a reliable, fast, and future-proof OBD2 adapter for iOS/Android/Windows – choose BM+.

See the full range of Vgate/vLinker adapters or compare with handheld scanners if you prefer standalone devices. 🔧