7 Best OBD2 PC Scanners in 2024: Expert Reviews for Accurate Car Diagnostics

Choosing the right OBD2 scanner software for your PC can be overwhelming. The market is flooded with options, many prioritizing profit over genuine diagnostic capabilities. As experienced automotive technicians at techcarusa.com, we understand the subtle yet crucial differences between a basic check-engine-light reader and professional-grade OBD2 software. This article cuts through the noise to highlight established innovators with proven OBD2 expertise, focusing specifically on PC-based solutions.

We’re steering clear of mobile apps for a reason. While convenient, many smartphone OBD2 applications are often short-lived due to market competition and are frequently developed by freelancers rather than established automotive software companies. PC-based OBD2 software, on the other hand, has a long history dating back to the early 1990s, offering a more mature and robust diagnostic experience. Furthermore, many mobile apps sacrifice functionality for flashy interfaces. We champion PC-based software for its power and reliability in vehicle diagnostics.

Having rigorously tested numerous car software packages over the past decade, we present our top 7 OBD2 diagnostic software recommendations for your PC. Our goal is to empower you with the information needed to make an informed decision. We encourage you to visit each provider’s website to assess their trustworthiness and select the software that best aligns with your specific automotive needs.

To save you time, we’ve summarized each software package in bullet points. Remember, the core function of all OBD2 software is similar: to diagnose and report vehicle faults. However, key differences lie in the breadth of fault codes detected. The software listed here represents some of the best in terms of comprehensive error detection.

While OBD2 diagnostics empowers vehicle owners to understand their car’s health like a mechanic, it’s crucial to remember that software can only identify issues. Physical repairs of malfunctioning parts are still necessary and cannot be resolved by simply clearing fault codes within the software.

Key Features Shared by the Top OBD Car Scanner Software:

Premium Software: These are not free OBD2 software options. For free ELM327 software, EasyOBD is a good starting point.
Windows Dominance, with Mac Options: The automotive industry primarily develops for Windows. However, we’ve identified and included two excellent OBD2 software options for macOS.
Expert-Based Reviews: Our reviews are grounded in extensive technical and car mechanical expertise, with a combined experience of 60 years. We strive for unbiased evaluations.
ELM327 Compatibility: All software supports ELM327 OBD2 interfaces across Bluetooth, WIFI, and USB connections.
Unidirectional Operation: None of these software packages are bidirectional. Bidirectional control requires high-end OEM scan tools, typically priced at $1000+. For information on workshop-grade OBD2 scanners, explore our blog for detailed reports.

Understanding OBD2 Scanners and Diagnostic Tools:

Since Karl Benz’s invention of the first gasoline-powered automobile in 1885, automotive engineering has undergone a remarkable evolution. Cars have transformed from basic transportation to sophisticated machines equipped with advanced technology, including air conditioning, navigation, and even autopilot systems.

This technological advancement has led to increasingly intelligent vehicles. Modern cars can gather data to optimize routes, adjust fluids based on driving conditions, and, importantly, detect engine errors.

Most vehicles on the road today are equipped with an on-board diagnostics (OBD2) port. This port provides access to data from the engine control unit (ECU), the car’s central computer. Technicians utilize this data to diagnose vehicle problems and determine necessary maintenance.

Simple 3-Step Diagnostic Process:

Connect: Plug the ELM327 adapter into your car’s OBD2 port.
Install: Install the necessary ELM327 drivers on your PC.
Launch & Connect: Open the OBD2 software and click “Connect.”

Accessing ECU data requires a computer and specialized software. This demand has spurred automotive software companies to develop user-friendly OBD software for PCs, enabling car owners to access and interpret their vehicle’s diagnostic information.

Typically, an OBD2 diagnostic solution comprises two key components: a hardware interface (cable or adapter) to connect to the OBD2 port and OBD2 software for PC to interpret the data. The software analyzes the data, providing insights for vehicle maintenance and extending vehicle lifespan.

Below are seven recommended car diagnostic software packages from leading companies, ideal for your Windows or Mac laptop/PC.

(Note: We have no affiliate partnerships with these companies. These recommendations are based on our genuine assessment of the best OBD2 software available for your diagnostic needs.)

TOAD PRO

TOAD (Total OBD & ECU Auto Diagnostics) PRO is a comprehensive OBD software suite designed for in-depth vehicle diagnostics. This “car-manufacturer-approved” software can perform thorough vehicle health checks, diagnosing over 15,000 common issues. For advanced users, TOAD PRO also includes ECU remapping software for performance optimization and fuel efficiency improvements.

Traditionally used by professional car repair shops, manufacturers, and mechanics, TOAD PRO brings professional-grade diagnostic capabilities to a wider audience.

Its key strengths include broad vehicle compatibility and advanced live data monitoring with customizable visual graphs.

TOAD PRO is suitable for both home car owners seeking to save on repair costs through DIY diagnostics and professional mechanics needing cutting-edge diagnostic and analysis tools. It is utilized by law enforcement, dealerships, car enthusiasts, and manufacturers across 80 countries.

Benefits of TOAD PRO:

Check Engine Light Diagnostics: Provides clear descriptions of detected problems, enabling informed repairs.
Enhanced Fault Code Detection: Identifies “extra” OBD fault codes often missed by less advanced scanners.
Cost Savings on Repairs: Pinpoints faulty components, allowing for cost-effective part sourcing and negotiation with mechanics.
Performance Tuning: Offers ECU remapping capabilities for performance and fuel economy optimization.
Touch-Optimized Interface: Ideal for touch-screen devices like Surface Pro.
Fuel Efficiency Improvement: Potential to optimize fuel consumption.
Extended Engine Life: Proactive diagnostics can contribute to preventative maintenance and longer engine life.
Real-Time Vehicle Data: Monitors live data streams to understand vehicle operation.
DIY Repair Assistance: Empowers users to diagnose and address car issues, reducing repair expenses.
Peace of Mind: Provides confidence in vehicle condition through regular diagnostics.
Versatile Data Display: Presents real-time data in tables and graphical plots.

Learn more at the TOAD website…

AutoEnginuity’s ScanTool

AutoEnginuity’s ScanTool stands out for its brand-specific diagnostic options, supporting manufacturers like BMW, Ford, GM, Chrysler, Nissan, Hyundai, Kia, Land Rover, Jaguar, Honda, and Porsche, among others. ScanTool is compatible with both Windows and iOS.

This software enables users to quickly scan for trouble codes, vehicle sensor data, and IM240 emissions readiness, facilitating efficient service decisions. ScanTool’s depth of coverage is a significant advantage.

It provides access to systems beyond basic engine diagnostics, including ABS, airbag, transmission, instrument cluster, and other controllers. This depth encompasses live data, bidirectional controls, adaptive resets, and system tests.

The primary drawback of AutoEnginuity ScanTool is its higher price point. It is primarily geared towards professional workshops that handle high volumes of vehicle scans and require OEM-level bidirectional functionality.

Benefits of AutoEnginuity ScanTool:

Data Logging Flexibility: Logs data in XML format for browser viewing and CSV for spreadsheet analysis.
Customizable Sensor Data Display: Allows users to tailor data presentation by adjusting sensor sampling rates, ranges, units, and scaling values.
User-Friendly Data Presentation: Presents data in a clear and understandable format, rather than raw, complex data streams.

Learn more at the AutoEnginuity website…

PCMScan

PCMScan is a comprehensive, generic OBD-II diagnostic software package compatible with a wide range of OBD hardware interfaces. It offers real-time visual charting, data logging, viewing, and playback. PCMScan also supports viewing Diagnostic Trouble Codes (DTCs), freeze frame data, and other vehicle information. This universal scanner software covers US, Asian, and European vehicles manufactured post-1996.

However, a significant limitation of this once-leading Windows OBD2 software is its lack of updates for over 7 years. This means it likely misses at least 500+ new PIDs (sensor data) incorporated into more current applications. This suggests either discontinued development or a shift in development focus.

Benefits of PCMScan:

Customizable Dashboard: Users can personalize the dashboard layout to their preferences.
Dyno and Drag Features: Includes built-in performance measurement tools.
Data Logging: Records diagnostic data for later analysis.
DTC Reading and Clearing: Reads stored and pending Diagnostic Trouble Codes and clears “Check Engine” lights.
Freeze Frame Data: Accesses and clears stored freeze frame data.
Extensive Trouble Code Definitions: Supports thousands of vehicle trouble code definitions.

Notable Features Tested:

Printing and Print Preview: Full printing support for all views, including virtual dashboards.
OBD-II Terminal: For users with OBD-II protocol knowledge, it allows sending custom commands to the vehicle.
Javascripting Support: Enables advanced users to create custom calculations on OBD-II parameters and data.
Configurable Alerts System: Allows users to set up alerts based on specific parameter conditions, with sound warnings and data bookmarking.
Unit System Flexibility: Supports both English and Metric (SI) unit systems.
CSV Data Export: Customizable log file export to .CSV format for easy use in programs like Excel.
Real-time Stamps: Exports data with real-time stamps for correlation with external data logs.
PID Priority: Allows assigning priorities to PIDs to optimize data capture rates.
Wide Interface Support: Compatible with various interfaces including Autotap, VIA, Multiplex Engineering, ELM320, ELM322, ELM323, ELM327, and any SAE-J2534 compliant OBD-II interface.

Learn more at the PCMScan website…

ProScan

ProScan, acquired by Total Car Diagnostics in 2015, has been updated for modern vehicles and is now included in the TOAD LITE package. This OBD2 software, originally launched in 2003, is known for its user-friendliness, stability, and consistent development based on deep automotive protocol and sensor knowledge. It is compatible with standard ELM327 hardware.

A standout feature of ProScan, less prominent in other software, is its accurate 0-60mph (100km/h) timing performance test. This allows for precise measurement of speed and torque gains after ECU adjustments or performance modifications.

Benefits of ProScan:

Fuel Economy Adjustment: Offers features to optimize fuel economy based on driving habits.
Vehicle Connection Manager: Provides a streamlined interface for program launch and vehicle connection.
Freeze Frame Data Access: Allows monitoring of data from previous time periods.
Oxygen Sensor Tests: Displays oxygen sensor test results and identifies malfunctioning sensors.
One-Click Diagnostic Reports: Generates comprehensive vehicle diagnostic reports.
Emissions Readiness Monitoring: Shows the status of vehicle emissions readiness monitors.
Oxygen Sensor Location: Indicates the number and location of oxygen sensors.
Oxygen Sensor Functionality Test: Verifies correct oxygen sensor operation.
Data Recording and Playback: Records and replays diagnostic data streams.
Instant Fuel Efficiency Calculation: Calculates real-time fuel efficiency (mpg/liters per km) for MAF-based vehicles.
Trip Cost Calculation: Calculates real-time trip cost based on distance and fuel efficiency.
Performance Statistics: Calculates performance metrics like 0-60 mph, 1/4 mile time, trap speed, and 1/8 mile time.
Horsepower and Torque Estimation: Estimates horsepower and torque curves and generates dyno charts.
Printable Diagnostic Reports: Creates printable reports for vehicle diagnostics.
Unit Conversion: Converts between English and metric units.

Learn more at the ProScan website…

OBD Auto Doctor

OBD II Auto Doctor is a sophisticated and user-friendly OBD2 diagnostic tool, particularly well-suited for macOS. It allows users to read and reset trouble codes and directly communicate with the vehicle’s OBD2 system.

While highly capable, OBD II Auto Doctor might be considered advanced for casual car owners. For users seeking a simpler yet reliable option with “repair-shop” level accuracy, Movi software (reviewed below) is also worth considering.

Overall, OBD II Auto Doctor is highly resourceful in terms of data extraction and is an excellent tool for serious car enthusiasts who want a deep understanding of their vehicles.

Benefits of OBD II Auto Doctor:

Comprehensive Diagnostics: Reads DTCs, freeze frame data, and MIL status.
Emissions and Fuel Data: Provides fuel emission and consumption information.
Real-Time Data Indicators: Displays OBD2 real-time data.
Data Visualization: Offers numerical and graphical data views.
Data Sharing: Allows data sharing via email.
ECU Information: Reads VIN and calibration ID of the ECU.
Extensive DTC Database: Includes a built-in database of over 14,000 alarm codes.

Learn more at the OBD II Auto Doctor website…

Movi and Movi Pro

Movi and Movi Pro are designed for ease of use on macOS, allowing users to read information from the vehicle’s engine control module (ECM) without complex setup procedures. If simplicity and reliability in retrieving fault codes and precise live PID parameter reports are priorities, Movi is an ideal choice. It is generally considered more intuitive and less overwhelming than OBD II Auto Doctor.

The free version of Movi is sufficient for many users, but DTC fault code clearing is only available in the paid Pro version.

Movi software can retrieve historical vehicle failures (DTCs) and clear the “check engine light” while providing detailed trouble code information.

Benefits of Movi and Movi Pro:

Real-Time Data Monitoring: Views real-time data to aid in diagnosing engine issues.
DTC Management: Reads and clears DTCs.
Freeze Frame Data Access: Views and clears freeze frame data.
Fuel Data: Monitors fuel consumption and fuel economy.
Performance Metrics: Monitors virtual horsepower and torque.
Multi-Parameter Graphing: Graphs up to 4 engine indicators simultaneously.

Learn more at the Movi website…

EOBD Facile

EOBD Facile OBD software offers a simple setup and connection process for Mac users via an ELM327 interface. Available in the App Store, EOBD Facile is comparable to Movi in terms of user-friendliness. The choice between them often comes down to personal preference regarding the user interface.

Once connected, EOBD Facile enables real-time diagnostics, displaying vehicle information and sensor readings.

Benefits of EOBD Facile:

Check Engine Light Reset: Clears the check engine light.
Engine Code Diagnostics: Views engine codes and their descriptions.
Manufacturer Error Codes: Monitors manufacturer-specific error codes.
GPS Data Logging: Maintains a backlog of GPS data records.

Learn more at the EOBD Facile website…

When selecting car diagnostic software, consider your specific needs. Some users may prioritize advanced features like real-time data visualization, while others may only require basic engine health monitoring for safe driving.

This concludes our expert review of the best OBD2 software, based on our extensive experience with car diagnostic tools. We hope this guide helps you find the Best Obd2 Pc Scanner for your needs in 2024 and beyond.