That familiar check engine light on your Subaru dashboard can be a source of dread. Instead of immediately scheduling a costly visit to the mechanic, imagine having the power to understand what’s happening under the hood yourself. An OBD2 scanner is the key to unlocking your Subaru’s onboard computer and diagnosing issues from the comfort of your garage. Since 1996, all vehicles in the U.S., including your Subaru, have utilized the On-Board Diagnostic II (OBDII) protocol. This system constantly monitors your vehicle’s health, from engine performance to emissions. An OBD2 scanner plugs into your car’s diagnostic port, giving you access to a wealth of data, including those cryptic Diagnostic Trouble Codes (DTCs) that trigger the check engine light.
While basic scanners can read standardized codes, the best OBD2 scanners for Subaru vehicles go further, accessing manufacturer-specific codes for a more comprehensive diagnosis. To help you find the right tool for your needs, we’ve compiled a list of top-rated OBD2 scanners, drawing from recommendations from the SubaruOutback.org community and expert reviews. These scanners range in features and price, ensuring there’s an option for every Subaru owner, from the casual DIYer to the seasoned mechanic.
1. OBDLink MX+: SubaruOutback.org Community Favorite
The OBDLink brand is highly regarded within the Subaru community, and the MX+ model stands out for its performance and features. This Bluetooth-enabled scanner boasts a rapid Bluetooth connection, crucial for accessing real-time live data from your Subaru’s engine and computer systems. The OBDLink MX+ requires a smartphone or tablet for display, and thankfully, OBDLink offers a user-friendly free app compatible with iOS, Android, and Windows devices. This broad compatibility is a significant advantage, as many budget Bluetooth scanners are limited to Android.
Beyond basic OBDII functions, the OBDLink MX+ excels at reading both generic and manufacturer-specific codes, providing a deeper understanding of Subaru-specific issues. It’s also designed for convenience and longevity, featuring a three-year warranty and a safe design that allows it to remain plugged into your Subaru’s OBD2 port without draining the battery. For Subaru owners seeking a reliable and feature-rich Bluetooth scanner, the OBDLink MX+ is a top recommendation.
2. ScanGauge II: The Multi-Function Gauge and Diagnostic Tool
The ScanGauge II offers a unique proposition: it’s not just an OBD2 scanner; it’s also a customizable gauge display for your Subaru. Compatible with all OBDII vehicles (1996 and newer), the ScanGauge II performs all the essential diagnostic functions, reading and clearing both current and pending trouble codes. However, its standout feature is the ability to display a wealth of vehicle data on its compact screen.
This device can act as multiple trip computers, performance monitors, and a suite of gauges, showing real-time data like RPM, speed, intake air temperature, fuel pressure, ignition timing, coolant temperature, and more. For fuel-conscious Subaru drivers, the ScanGauge II can display instantaneous and average fuel economy, even calculating cost per mile. Furthermore, vehicle-specific gauges, such as a boost gauge for turbocharged Subaru models, are also available. If you want a device that combines diagnostics with enhanced vehicle monitoring in your Subaru, the ScanGauge II is a compelling option.
3. Innova 5610: Advanced Diagnostics with Bi-Directional Control
The Innova 5610 is a step up in diagnostic capability, offering features typically found in professional-grade tools. Like the other scanners on our list, it handles basic and manufacturer-specific trouble codes. Its large color screen provides clear readability of data and trouble codes, and it can also display live data in graphical format for easier analysis of your Subaru’s performance. The Innova 5610 can scan virtually every module in your Subaru, including the tire pressure monitoring system (TPMS).
What sets the Innova 5610 apart is its bi-directional control functionality. This advanced feature allows you to send commands to your Subaru’s modules and sensors, similar to what a dealer technician can do. For instance, you can disable a module for testing purposes or command components like the EGR valve to open and close to assess their operation. While these are advanced features, for Subaru owners who are experienced DIY mechanics and want in-depth diagnostic capabilities, the Innova 5610 is an invaluable tool.
4. BlueDriver Pro: Comprehensive Diagnostics with Repair Reports
The BlueDriver Pro is another highly recommended Bluetooth OBD2 scanner that provides a wealth of diagnostic information for your Subaru. It reads, interprets, and clears standard OBDII trouble codes and goes further by capturing freeze frame data, showing the exact vehicle conditions when a code was triggered. It also displays live data streams from your Subaru’s sensors in real-time. A particularly useful feature for emissions-conscious Subaru owners is the smog check readiness test, indicating if your vehicle has completed all necessary internal tests and is ready for an emissions inspection.
One of the most valuable aspects of the BlueDriver Pro is its repair report feature. For each trouble code, the BlueDriver app can generate a report detailing likely causes, common fixes reported by other vehicle owners, and other helpful information to guide your diagnostic and repair process. This feature can significantly shorten the troubleshooting time for Subaru owners.
5. Autel AutoLink AL329: Professional Brand, DIY Friendly Price
Autel is a leading brand in professional-grade diagnostic tools, commonly seen in automotive repair shops and on mechanic YouTube channels. While Autel offers high-end, feature-rich diagnostic systems like their MaxiSys line (capable of advanced functions like reprogramming ADAS systems), they also provide more accessible options for the DIY mechanic. The Autel AutoLink AL329 is a standalone, handheld OBD2 scanner, ideal for Subaru owners who prefer a dedicated device without the need for smartphones or apps.
The AL329 features a color screen for easy viewing and can retrieve both generic and manufacturer-specific codes. It also displays emissions readiness status and freeze frame data. While it may not have all the advanced features of Autel’s professional lines, the AutoLink AL329 provides essential diagnostic capabilities to help you diagnose and maintain your Subaru at a very affordable price point, offering a great balance of performance and value.
Choosing the Best OBD2 Scanner for Your Subaru
Selecting the ideal OBD2 scanner for your Subaru depends on your needs and budget. For basic check engine light diagnosis and ease of use, Bluetooth scanners like the OBDLink MX+ or BlueDriver Pro paired with user-friendly apps are excellent choices. If you desire a multi-functional tool that combines diagnostics with vehicle gauges, the ScanGauge II is a unique option. For DIYers seeking more advanced capabilities like bi-directional control, the Innova 5610 delivers professional-level features. Finally, for a reliable standalone scanner from a trusted brand at an affordable price, the Autel AutoLink AL329 is a strong contender. No matter your choice, investing in an OBD2 scanner empowers you to understand and address your Subaru’s health, saving you time and money in the long run.
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