ELM327 OBD2 V2.1 Bluetooth Interface Auto Car Diagnostic Scanner

The ELM327 OBD2 V2.1 Bluetooth Interface Auto Car Diagnostic Scanner is a compact and easy-to-use wireless vehicle diagnostic tool designed to communicate with a car's On-Board Diagnostics II (OBD2) system. It plugs directly into the vehicle's OBD2 diagnostic port and provides real-time access to engine and vehicle data through a Bluetooth connection to a smartphone, tablet, or laptop.

Powered by the ELM327 V2.1 chipset, this diagnostic scanner communicates with the vehicle's Engine Control Unit (ECU) and supports multiple standard OBD2 communication protocols. It is compatible with most petrol vehicles manufactured from 1996 onwards and most diesel vehicles manufactured after 2004 that support the OBD2 standard.

Using compatible OBD2 applications, users can wirelessly monitor live engine parameters, read and erase Diagnostic Trouble Codes (DTCs), check engine light information, monitor fuel system performance, coolant temperature, engine RPM, vehicle speed, intake air temperature, throttle position, oxygen sensor readings, battery voltage, fuel trim values, and many other real-time vehicle parameters.

The Bluetooth interface eliminates the need for cables, allowing quick pairing with Android smartphones, tablets, Windows laptops, and other compatible Bluetooth-enabled devices. Numerous third-party diagnostic applications provide live dashboards, data logging, performance graphs, trip monitoring, emission testing, and detailed fault reports.

The ELM327 OBD2 Bluetooth Scanner is widely used by professional mechanics, automotive technicians, workshops, fleet managers, car enthusiasts, and everyday vehicle owners for routine maintenance, engine diagnostics, fault detection, preventive maintenance, and performance monitoring.

Its compact plug-and-play design allows it to remain connected inside the vehicle without interfering with driving, making it a convenient and cost-effective solution for monitoring vehicle health and diagnosing engine problems before they become serious.

Working Principle

The ELM327 OBD2 Scanner connects directly to the vehicle's OBD2 diagnostic port, where it communicates with the vehicle's Engine Control Unit (ECU).

Once powered by the vehicle, the scanner reads diagnostic information and live sensor data from the ECU using standard OBD2 communication protocols. The built-in Bluetooth module wirelessly transmits this information to a paired smartphone, tablet, or computer.

Using compatible diagnostic software, users can:

• Read engine fault codes

• Clear diagnostic trouble codes (DTCs)

• Reset the Check Engine Light (MIL)

• Monitor live engine data

• View vehicle sensor information

• Record driving data

• Analyze engine performance

This wireless communication allows quick diagnosis of engine and emission-related issues without requiring professional diagnostic equipment.

Key Features

• ELM327 V2.1 diagnostic chipset

• Standard OBD2 diagnostic interface

• Bluetooth wireless connectivity

• Plug-and-play operation

• Reads Diagnostic Trouble Codes (DTCs)

• Clears engine fault codes

• Resets Check Engine Light (MIL)

• Displays live engine data

• Real-time vehicle monitoring

• Supports multiple OBD2 communication protocols

• Compact and lightweight design

• Fast Bluetooth pairing

• Compatible with various OBD2 applications

• Low power consumption

• Durable construction

Applications

The ELM327 OBD2 V2.1 Bluetooth Scanner is ideal for:

• Vehicle diagnostics

• Engine fault detection

• Check Engine Light diagnosis

• ECU monitoring

• Automotive repair

• Preventive vehicle maintenance

• Fleet vehicle management

• Car performance monitoring

• Fuel efficiency monitoring

• Emission testing

• Workshop diagnostics

• Automotive education

• DIY vehicle maintenance

• Professional automotive service centers

Specifications

• Product Type: OBD2 Bluetooth Diagnostic Scanner

• Model: ELM327 V2.1

• Communication: Bluetooth

• Interface: OBD2 (16-Pin)

• Power Supply: Vehicle OBD2 Port

• Chipset: ELM327 V2.1

• Operating Voltage: 12V DC (from vehicle)

• Supported Protocols: Multiple standard OBD2 protocols

• Compatibility: Most OBD2-compliant petrol and diesel vehicles

• Installation: Plug-and-play

• Connection Range: Bluetooth wireless

Compatible Vehicles

The scanner is generally compatible with:

• Most petrol cars manufactured from 1996 onwards (OBD2 compliant)

• Most diesel vehicles manufactured from 2004 onwards (OBD2 compliant)

• Many domestic and imported vehicle brands supporting standard OBD2 protocols

Compatibility may vary depending on the vehicle manufacturer, model, and supported OBD2 protocol.

Compatible Software

The ELM327 Bluetooth Scanner works with many popular OBD2 applications, including:

• Torque

• Car Scanner

• OBD Auto Doctor

• Piston

• DashCommand

• OBD Fusion

• ScanMaster

• Various ELM327-compatible diagnostic applications

Application compatibility depends on the operating system and Bluetooth support of the connected device.