Best Budget Car Diagnostic Tool 2025: Top 3 Budget Scanners Under $150 (OBD2 & ABS)

In 2025, having a reliable OBD2 scanner is more important than ever for DIY car maintenance. Whether you're a weekend mechanic or just want to avoid costly trips to the auto shop, a solid budget scanner can help you diagnose issues quickly and accurately. The good news? You don’t have to break the bank. Here are the top 3 budget car diagnostic tools under $150 that support both OBD2 and ABS diagnostics, offering great value without compromising essential features.

Among dozens of affordable tools, XTOOL has emerged as a top contender in the entry-level segment. Known for its feature-rich, user-friendly devices, XTOOL offers powerful scanners even under the $150 mark.

XTOOL A20 Pro – Best Overall for Features and Value

Price: ~$50
Compatibility: OBD2 & ABS for most 1996+ vehicles (including American, Asian, and European models)
Connection: Wireless (Bluetooth) + App

The XTOOL A20 Pro strikes an impressive balance between affordability and performance. Designed as a plug-and-play Bluetooth scanner, it pairs seamlessly with your smartphone through the dedicated XTOOL app. Despite its low price point, it provides powerful diagnostic functions that were once only found in tools double its price.

Key Features:

• Full OBD2 functions: Read/clear codes, freeze frame, I/M readiness, O2 sensor test, EVAP system test.
• ABS diagnostics: Reads ABS trouble codes and helps identify faulty wheel speed sensors.
• Live Data: Real-time data from multiple sensors, shown in numeric formats.
• Battery Voltage Monitoring: View live battery status for quick charging system checks.
• Lifetime Free Updates: Always stay current with the latest vehicle protocols.

Pros:

• Lightweight and compact design
• Compatible with both Android and iOS
• Fast Bluetooth connection
• Clear and easy-to-use app interface

Cons:

• No bi-directional control (like actuator testing)
• App lacks some advanced features compared to pricier tools

Verdict: For casual users and DIYers, the A20 Pro offers an excellent blend of core functions and ease of use, making it the best value-for-money scanner under $100 in 2025.

XTOOL A30M – Best Wireless Option with Advanced Features

Price: ~$140
Compatibility: Extensive vehicle coverage, supports 80+ car brands
Connection: Wireless (Bluetooth to smartphone)

If you're looking for a scanner that feels professional but is still budget-friendly, the XTOOL A30M is a standout. Built for more serious home mechanics, the A30M extends beyond simple code reading with over 21 maintenance functions and a much broader range of system diagnostics.

Key Features:

• All-System Diagnosis: Not just OBD2 and ABS, but also engine, transmission, SRS, air conditioning, TPMS, and more.
• 21+ Reset Services: Oil reset, EPB, SAS, throttle reset, DPF regeneration, battery registration, and more.
• Auto VIN Scan: Quickly detects your vehicle’s make, model, and year for instant connection.
• Real-Time Data: Stream and record live sensor data with customizable graphs.
• Cloud-Based Report Sharing: Share diagnostic reports instantly with technicians or buyers.

Pros:

• Near-professional-grade diagnostics
• Clean, modern app interface
• Broad brand coverage (especially useful for users with multiple vehicles)
• Free lifetime updates

Cons:

• Slightly higher price point within the budget range
• Not compatible with older vehicles without OBD2 ports (pre-1996)

Verdict: The A30M is perfect for DIYers who want pro-level capability without pro-level cost. With extensive reset functions and broad compatibility, it easily justifies its slightly higher price tag under $100.

XTOOL D5 – Best for Tablet-Style Scanning (Entry-Level Professional)

Price: ~$140
Compatibility: Full-system diagnostics, 85+ brands supported
Connection: Wired

The XTOOL D5 sits at the upper end of the budget range but offers a unique value proposition: it includes a dedicated tablet-like scanner. Unlike the A20 Pro or A30M which rely on your smartphone, the D5 comes with its 5-inch touchscreen interface, making it an all-in-one device right out of the box.

Key Features:

• All-System Diagnosis: Engine, ABS, SRS, transmission.
• 10+ Special Functions: Includes oil reset, EPB, TPMS reset, BMS reset, and injector coding.
• Tablet Interface: Runs on Android with a user-friendly UI and bright, responsive display.
• Vehicle Health Report: Automatically generates diagnostic summaries with repair suggestions.
• Wi-Fi Update: Free lifetime software updates via Wi-Fi.

Pros:

• No smartphone required
• Larger display is easier to navigate
• Excellent value for those who prefer a standalone tool
• Fast boot-up and scanning

Cons:

• Slightly bulkier than Bluetooth dongles
• May be overkill for casual users

Verdict: The D5 is ideal for those who want a traditional scan tool experience without relying on a smartphone app. It’s a great choice for more hands-on car enthusiasts or those working on multiple cars.

For under $150, each of these scanners provides excellent value with the ability to perform both OBD2 and ABS diagnostics—perfect for staying on top of car maintenance in 2025 without draining your wallet.