We researched and compared the top OBD1 and OBD2 scanners on the market, evaluating manufacturer specifications, published compatibility lists, and aggregated owner feedback. Whether you need to diagnose a classic GM or Ford vehicle with OBD1 or a modern OBD2 car, our guide covers the best options for every budget and skill level.
| Photo | Product | Score | Buy |
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Innova 5610 Best Overall OBD2 only, 4.3-inch color display, Bluetooth, ABS/SRS/transmission coverage |
9.2 | 🛒 Check Price |
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Autel AutoLink AL619 Best Value OBD2 OBD2 only, 2.8-inch color display, ABS/SRS coverage |
8.7 | 🛒 Check Price |
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BlueDriver Pro Best Bluetooth OBD2 only, Bluetooth to smartphone app |
8.4 | 🛒 Check Price |
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Actron CP9690 Elite Best for GM OBD1 OBD1 (GM/Chrysler) and OBD2, 2-line display |
8.1 | 🛒 Check Price |
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Innova 3040 Best for Ford OBD1 OBD1 (Ford) and OBD2, 2-line display |
7.8 | 🛒 Check Price |
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Foxwell NT301 Best Budget OBD2 OBD2 only, 2.8-inch color display |
7.3 | 🛒 Check Price |
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ANCEL AD410 Best Entry-Level OBD2 only, 2.4-inch display |
7.0 | 🛒 Check Price |
1. Innova 5610: Best Overall
The Innova 5610 is the top choice for OBD2 diagnostics based on our research. It features a bright 4.3-inch color touchscreen that displays live data in easy-to-read graphs. It covers engine, ABS, SRS, and transmission systems for most 1996 and newer vehicles. Owner feedback consistently praises its easy to use interface and the RepairSolutions2 app, which provides likely fixes based on the code.
However, this scanner does not support OBD1 vehicles at all. If you need to work on pre-1996 cars, skip this model. It is also on the higher end of the price spectrum, but for pure OBD2 diagnostics, it delivers exceptional value.
- Large color touchscreen with live data graphing
- Covers OBD2, ABS, SRS, and transmission codes for most 1996+ vehicles
- Includes RepairSolutions2 app with verified fixes
Pros: Intuitive interface and clear graphs; Broad system coverage beyond engine codes; Helpful app integration for repair guidance
Cons: No OBD1 support at all
2. Autel AutoLink AL619: Best Value OBD2
The Autel AutoLink AL619 offers excellent value for OBD2 diagnostics. We compared its spec sheet and owner reviews against others in its price range, and it consistently stands out for including ABS and SRS coverage, which many budget scanners lack. The 2.8-inch color display is clear and shows live data. It also simplifies smog check preparation with a one-click I/M readiness test.
This scanner does not work with OBD1 vehicles. If you need to diagnose older cars, look for a dual-protocol model. Also, the screen is smaller than the Innova 5610, but for the price, it is a solid performer.
- Supports OBD2, ABS, and SRS systems
- 2.8-inch color display with live data
- One-click I/M readiness and smog check
Pros: Affordable with ABS and SRS coverage; Easy smog check readiness tests; Good build quality for the price
Cons: No OBD1 support; Screen is smaller than premium models
3. BlueDriver Pro: Best Bluetooth
The BlueDriver Pro is a Bluetooth OBD2 scanner that turns your smartphone into a powerful diagnostic tool. Based on our evaluation of owner feedback, the app is intuitive and provides detailed code definitions, repair reports, and live data graphs. It covers engine, ABS, SRS, and transmission systems for most 1996+ vehicles. The device itself is compact and plugs directly into the DLC port.
It does not support OBD1 vehicles, so it is not suitable for pre-1996 cars. Some users also note that the Bluetooth connection can occasionally drop, but overall it is a reliable choice for modern vehicles.
- Wireless Bluetooth connection to iOS/Android
- Covers OBD2, ABS, SRS, and transmission
- Free app with code definitions and repair reports
Pros: Very portable and easy to use with phone; Comprehensive code lookup and repair info; Regular app updates
Cons: No OBD1 support; Requires smartphone and app setup
4. Actron CP9690 Elite: Best for GM OBD1
The Actron CP9690 Elite is one of the few scanners that works with both OBD1 and OBD2 systems. We researched its compatibility list and found it covers GM OBD1 (1980-1995) and Chrysler OBD1 (1983-1995), plus standard OBD2 for 1996+ vehicles. It also includes ABS and airbag code reading for many models. Owner feedback highlights its durability and the fact that it can read codes on older GM and Chrysler vehicles.
However, it does not support Ford OBD1, so Ford owners should look elsewhere. The display is a small 2-line monochrome screen, which feels dated compared to modern scanners. It is also priced higher than some OBD2-only models, but the dual-protocol capability justifies the cost for owners of older GM or Chrysler vehicles.
- Supports GM OBD1 (1980-1995) and Chrysler OBD1 (1983-1995)
- Also covers OBD2 for 1996+ vehicles
- Includes ABS and airbag coverage for many models
Pros: Rare OBD1 support for GM and Chrysler; Durable build with protective boot; Broad coverage for both protocols
Cons: No Ford OBD1 support; Small monochrome display
5. Innova 3040: Best for Ford OBD1
The Innova 3040 is specifically designed for Ford owners who need OBD1 support. We compared its specifications to other dual-protocol scanners and found it covers Ford OBD1 from 1981 to 1995, plus OBD2 for 1996+ vehicles. It reads and clears engine codes and includes a built-in code lookup. Owner reviews appreciate its simplicity and reliability for basic diagnostics.
It does not support GM or Chrysler OBD1, so it is not a universal solution. Additionally, it only covers engine codes, not ABS or SRS. For Ford owners with older vehicles, it is a good choice, but for broader coverage, consider a more comprehensive model.
- Supports Ford OBD1 (1981-1995) and OBD2
- Reads and clears engine codes
- Includes code lookup and definitions
Pros: Dedicated Ford OBD1 support; Simple operation for basic diagnostics; Affordable price point
Cons: No GM or Chrysler OBD1 support; Limited to engine codes only
6. Foxwell NT301: Best Budget OBD2
The Foxwell NT301 is a budget-friendly OBD2 scanner that gets the job done for basic diagnostics. We evaluated owner feedback and found it reliable for reading and clearing engine codes on most 1996+ vehicles. The 2.8-inch color display is a nice touch at this price point. It also supports live data streaming, though the interface can be a bit sluggish.
This scanner does not support OBD1 at all, nor does it cover ABS or SRS systems. If you need advanced features or work on older vehicles, look elsewhere. For simple check engine light diagnostics on a modern car, it is a solid, low-cost option.
- Covers OBD2 for 1996+ vehicles
- 2.8-inch color display with live data
- Reads and clears engine codes
Pros: Very affordable; Color display at low price; Good for basic code reading
Cons: No OBD1 support; No ABS or SRS coverage; Interface can be slow
7. ANCEL AD410: Best Entry-Level
The ANCEL AD410 is an entry-level OBD2 scanner that is perfect for first-time users. We researched its specs and owner reviews and found it reliably reads and clears engine codes on most 1996+ vehicles. It includes an I/M readiness test for smog checks. The operation is straightforward with a single button.
It does not support OBD1, ABS, or SRS. The display is small and monochrome, and it lacks live data graphing. If you need more than basic code reading, invest in a higher-end model. But for the price, it is a functional tool for occasional use.
- OBD2 code reading and clearing
- 2.4-inch monochrome display
- I/M readiness test
Pros: Extremely affordable; Simple one-button operation; Works on most 1996+ cars
Cons: No OBD1 support; Basic features only; Display is small and low resolution
Frequently Asked Questions
What is the difference between OBD1 and OBD2?
OBD1 (On-Board Diagnostics Generation 1) was used in vehicles before 1996. It varies by manufacturer, often requiring specific adapters or jumper wires to read codes. OBD2 is standardized across all cars from 1996 onward, using a universal 16-pin connector and standardized diagnostic trouble codes. Most modern scanners support OBD2, but OBD1 requires a scanner with specific manufacturer support.
Can I use an OBD2 scanner on an OBD1 vehicle?
No, an OBD2 scanner will not work on an OBD1 vehicle because the connector and communication protocols are different. You need a scanner that specifically supports OBD1 for your vehicle’s make and model, or an adapter that converts the OBD1 connector to OBD2, though compatibility is limited.
Do these scanners work with diesel engines?
Most OBD2 scanners work with diesel vehicles from 1996 onward, but coverage for diesel-specific systems (like DPF or SCR) varies. The Innova 5610 and BlueDriver Pro offer good diesel support. For OBD1 diesel vehicles, check the scanner’s compatibility list, as many are gasoline-focused.
How do I know if a scanner supports my car's OBD1 system?
Check the manufacturer’s compatibility chart for your specific make, model, and year. For example, the Actron CP9690 supports GM and Chrysler OBD1, while the Innova 3040 supports Ford OBD1. If your car is not listed, it likely is not supported.
What is the best scanner for both OBD1 and OBD2?
The Actron CP9690 Elite is a top choice for GM and Chrysler OBD1 plus OBD2. For Ford OBD1, the Innova 3040 is a good option. However, there is no single scanner that covers all OBD1 systems for every make. Choose based on the specific vehicles you own.
Our Verdict
For most users, the Innova 5610 is the best OBD2 scanner overall due to its excellent screen, broad system coverage, and repair guidance. If you need OBD1 support for GM or Chrysler, the Actron CP9690 Elite is our runner up. For Ford OBD1, the Innova 3040 is a solid choice.
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Video Guide
Video: Related tutorial from YouTube