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10 Best OBD1 Scanner GM: Top Picks for 2025 That You Can’t Miss!
In the ever-evolving world of automotive diagnostics, having the best OBD1 scanner GM is essential for car enthusiasts, mechanics, and DIYers. These scanners are indispensable tools that enable you to read and clear diagnostic trouble codes (DTCs) on vehicles manufactured before 1996 when OBD-II systems became the standard. With the advent of new technologies and smart interfaces, selecting the right scanner can make a significant difference in your troubleshooting process. Here’s a look at the top 10 OBD1 scanners available on Amazon for 2025.
Top OBD1 Scanners for GM Vehicles
1. Actron CP9180 AutoScanner Plus
The Actron CP9180 is a versatile OBD1 and OBD2 scanner aimed at DIY enthusiasts and professional mechanics alike. This handheld device features a large LCD screen that provides easy access to onboard diagnostic information, including DTCs and live data.
Pros:
- Supports both OBD1 and OBD2 protocols
- Simple user interface with easy navigation
- Provides extensive diagnostic reports
Cons:
- Limited compatibility with some older vehicles
- Requires a battery replacement for long-term use
- Included CP9145 diagnostic code scanner, which easily retrieves trouble codes from your vehicle's computer to diagnose problems
- Includes additional cables to retrieve codes and live data for 1984-95 Ford and GM models, and 1989-95 Chrysler models
- Large easy-to-read LCD screen displays DTCs and their descriptions; Internet updateable
- Monitor status and I/M readiness determines if your vehicle is ready for an emissions test
- Scanner includes a one-year limited warranty
2. Innova 3100j Scanner
Innova’s 3100j scanner is designed specifically for OBD1 GM vehicles, offering extensive diagnostic capabilities. With advanced features like live data streaming and emissions readiness checks, this scanner is a great tool for understanding your vehicle’s health.
Pros:
- Compatibility with a wide range of GM models
- User-friendly interface with informative display
- Built-in battery tester included
Cons:
- No advanced repair solutions
- Some users may find the learning curve steeper
- MAINTAIN PEAK PERFORMANCE AND SAFETY ON THE ROAD - Innova’s 3100RS OBD2 Scanner helps you easily find the problem and fix the problem. The included vehicle code scanner OBD2 Bluetooth app, RepairSolutions2 gives you real-time solutions to troubleshoot and fix your automotive issues. Get verified fixes from this wireless OBD2 code reader, find and purchase the exact part required for repair, view maintenance schedules, receive technical bulletins, and access to Innova’s best-in-class database.
- PREMIUM OBD2 CODE READER WITH ENHANCED COVERAGE AND FUNCTIONALITY - This vehicle diagnostic tool empowers home mechanics, automotive enthusiasts, and service & repair technicians with professional-level functionality. It is a vehicle code reader that reads and clears OBD engine codes and displays all vehicle information from when a trouble code was triggered. OBD2 scanner diagnostic tool supports English, Spanish, and French.
- LIVE DATA FOR MORE ACCURATE DIAGNOSIS - With the Innova 3100RS OBD2 reader you can see your vehicle’s essential information like RPM, speed, and oil temperature in real time to help identify and correct problems. You can also check and test your battery and alternator, so you know whether you need to bring your car to a technician or not.
- EASY SELF-DIAGNOSIS OF EMISSION STATUS AND OTHER IMPORTANT INFORMATION - Know your smog check results before your state does. This car check engine light reader determines whether you’ll pass the vehicle smog test. This scanner OBD2 also tests battery initialization and voltage reading on hybrid battery cells.
- BUY WITH CONFIDENCE WITH USA DESIGNED AND SUPPORTED PRODUCTS - Our California-based, ASE-Certified Customer Support Team is glad to assist you as you navigate through this product. It's a perfect diagnostic car scanner for all cars compatible, use it on any foreign or domestic 1996 or newer OBD2 car, light truck, SUV, or hybrid vehicle. Questions? We’re here to assist you.
3. BlueDriver Bluetooth Pro OBDII Scan Tool
The BlueDriver Bluetooth Pro is a high-tech OBD1 scanner that works seamlessly with your smartphone or tablet. Using Bluetooth technology, it pulls diagnostic data directly from your vehicle and offers real-time information through a dedicated app.
Pros:
- Wireless connectivity with great app compatibility
- Comprehensive vehicle diagnostics, including repair reports
- User-friendly interface
Cons:
- Requires a smartphone to function
- Not all features may be functional on OBD1
−$30.00
- [Pro OBD2 Scanner] - BlueDriver is the easiest way to scan and understand your vehicle like a professional mechanic. Read and clear your car’s trouble codes and check engine light.
- [Read & Clear All The Codes] - BlueDriver's enhanced vehicle diagnostics gives you access to information normally available only to mechanics on their OBD2 scan tools. Now you can read and clear ABS, Airbag, SRS, TPMS codes, and many more.
- [Get The Right Fix & View Live Data] - Much more than a car code reader, BlueDriver is a diagnostic tool. You’ll get unlimited repair reports with possible causes and fixes, plus real-time health monitoring while you drive with the live data feature.
- [Wireless & Bluetooth Enabled] - Say goodbye to wires. BlueDriver connects with Bluetooth via your phone/tablet to a sensor that plugs into your car's OBDII port. Get all of the capabilities of an expensive code reader & scan tool without any annoying wires.
- [User-Friendly App and Repair Videos] - BlueDriver gives you more ways to scan and fix your vehicle. Our iOS & Android app connects you to a large database of repair videos with step-by-step directions of repairs.
4. Autel AutoLink AL319 OBD2 Scanner
This versatile scanner provides excellent compatibility with many GM OBD1 vehicles while also having robust OBD2 functionalities. Its well-designed layout makes it easy to read and navigate through data.
Pros:
- Affordable price point
- Quick response time
- Multi-lingual support
Cons:
- Limited advanced features
- Not suitable for very old models
- 【TURN OFF CEL】 This AL319 car diagnostic tool supports Reading DTCs, displaying Live Data, Freeze Frame & I/M Readiness etc to figure out the root cause of the Check Engine Light (CEL) and turning it off, to help you detect any potential problems, and to avoid excessive costs for unnecessary repairs.
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with 7 languages (English, French, Spanish, etc.) and various post-1996 OBD II protocol vehicles (Toyota, Nissan, Honda, Ford, etc.), this OBD II scanner provides accurate and fast diagnosis for worldwide car owners.
- 【FOR END USER & DIYERS】 This error code reader AL319 is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this obd2 scanner, and get the information you want.
- 【USER-FRIENDLY DESIGN】 This check engine code reader features a patented One-Click I/M Readiness, TFT color display, built-in speaker, LED Indicator etc. The cable is long enough without being too long and getting in the way. No batteries are needed.
- 【HIGH-QUALITY SERVICES】 12 months warranty from the date of purchase and lifetime free update are offered by this Automobile OBDII scan tool. Welcome to contact us via Q&A, email, or hotline, and our after-sale-service team for technical support.
5. GM Tech 2 Scanner
The GM Tech 2 is a dealer-level diagnostics tool capable of reading and clearing codes on vehicles as early as the mid-1980s. It is highly respected among professional mechanics for its reliability and advanced features.
Pros:
- Comprehensive and detailed diagnostics
- Compatible with many GM makes and models
- Easily updated
Cons:
- Higher price point
- Slightly less portable than handheld options
- Te- ch2 OBD2 Diagnostic Scanner with TIS2000 ROM Flash Tester CANdi Replacement For OP-EL G-M SU-zuki Hold-en Sa-ab op-el is-uzu Car Diagnostic Tools
- It Can Only Support 12V Cars, No Trucks.
- The Te-ch 2 comes with Authentic software and provides support for on-board diagnostics on all systems 1992 thru 2014.
- Service: We provide technical support; if you receive the product use problems, you can contact customer service to solve, we will reply you within 24 hours, thank you!
6. Foxwell NT301 OBD2 Scanner
Known for its affordability and reliability, the Foxwell NT301 is a solid OBD1 scanner for GM vehicles. It offers DTC reading and has a robust design suitable for both beginners and professionals alike.
Pros:
- Simple to use with a fast boot-up time
- Affordable price
- Provides real-time data
Cons:
- Limited feature set compared to advanced scanners
- May not be compatible with certain older models
−$19.91
- [Vehicle CEL Doctor] The NT301 obd2 scanner enables you to read DTCs, access to I/M readiness status, figure out the root reason of check engine light or MIL turned on, monitor sensors test, read live data and retrieve VIN of your vehicle. The fault code only can be cleared after repair finished by NT301, as like all the obd2 code readers' working principle
- [Accuracy & Streams] Live data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend
- [Worthy to Own] Recommended by most professional mechanics on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8" color screen and 1-year seller assurance with EXCLUSIVE tech and service team. Plug & Play, no need to update before use
- [S-mog Check Helper] Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident e-missions test
- [Home Necessity] Open to global customers. No battery required, NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and great choice for Home and Autoshop Mechanics. Not support ABS or SRS system
7. Launch CRP129E OBD2 Scanner
The Launch CRP129E is a multi-functional scanner that combines OBD1 features with advanced OBD2 functions, making it a well-rounded choice for GM vehicles. It provides live data and code clearing capabilities at an approachable price point.
Pros:
- Multi-vehicle compatibility beyond GM
- Touchscreen interface for ease of use
- Provides multiple diagnostic services
Cons:
- Battery life could be improved
- Takes time to master all of its functions
−$19.00
- Upgrade to the CRP129E V2.0: Built on the robust data foundation of the CRP129E/CRP123E, this latest diagnostic tool offers a seamless experience powered by Android 8.1 OS for fast booting and startup, eliminating the frustration of waiting. Equipped with a quad-core processor and upgraded 32GB ROM, it provides ample storage and lightning-fast performance, boosting your efficiency by up to 65%. The 5-inch HD display with 1280x720 resolution ensures crystal-clear visuals, making every diagnostic detail easy to read. Dive into a smoother, faster, and more efficient diagnostic experience with the CRP129E V2.0
- Highly Recommended by Youtubers and the Press: This 4 systems OBDII Scanner is designed for home mechanics, DIYers, and professionals, offering comprehensive diagnostics for AT, ENG, ABS, and SRS systems. Access fault codes to identify troubleshooting steps and use all 10 OBD2 test modes to address emission issues, ensuring your vehicle passes its annual inspection smoothly. Routine maintenance with this tool can help prevent costly repairs, breakdowns, and accidents, keeping your older car running reliably. With its robust feature set, this scanner is anessential tool for maintaining your vehicle’s health.
- 12 Reset Services Car Scanner: LAUNCH CRP129E V2.0 is the upgrade version of CRP129E/CRP123E. The latest version adds 4 reset function again. Except for Oil/ TPMS/Brake/Battery Reset, SAS Calibration, Throttle Adaptation, D.PF Regeneration, Injector Coding, it adds ABS Bleeding, Ad blue Reset, A/F Setting, AFS Rest, more practical reset functions than LAUNCH CRP129E and CRP123E. For the cost you' re getting value from this handy car scanner to reset systems. Function menu varies by vehicle’s specifics
- 2025 NEW FCA AUTOAUTH and 100+ Car Brand Support, NO IP Limitation: LAUNCH CRP129E V2.0 introduces AutoAuth for 2017+ FCA vehicles (fit for Chrysler,fit for Jeep, fit for Dodge, fit for Fiat, etc.), covering over 100 brands and 20,000 models from 1996 to 2025. This includes diesel (12V only), gasoline, passenger cars, pickups, light-duty trucks, SUVs, and minivans. Designed for global use with no IP restrictions, this scanner supports a wide range of vehicle types.Also,main enhancements include the ability to share up to 50 images via email at once, up from the original limit of 9.
- AUTO VIN + Repair Help + Online Feedback +DTC Lookup: LAUNCH CRP129E V 2.0 OBD2 scanner has automatic VIN technology to identify the car without manual input. It will accurately pull the error codes, and then also tells you what the problem is. Online DTC Codes Search(online code definition Explanation search such as repair videos and code analysis); Operating skills; Automotive Technology handbook,Repair Case and How-to Videos.And if the problem still can not fix, please feedback online(Fix Issue by "Diagnostic Feedback" Assistance)
8. Ancel AD310 OBD2 Scanner
The Ancel AD310 is an entry-level OBD1 scanner designed for those who want to perform diagnostics on older GM vehicles without breaking the bank. Its compact design makes it easy to carry around.
Pros:
- Very budget-friendly
- Plug-and-play setup
- Compact design
Cons:
- Limited functionality
- Basic display does not provide extensive data
−$3.00
- CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of taking car to mechanic shop, you can use it to check the trouble code and show code definition by yourself.
- Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed mechanic tool with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
- Accurate Fast and Easy to Use: The AD310 scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble codes in seconds. If you want to find out the cause of the check engine light, this device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
- OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols. This is not the case with the AD310 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Check compatibility with your vehicle model before purchasing.
- Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.
9. EASE Diagnostics EASE OBD1 Scanner
The EASE Diagnostics scanner is a professional-grade OBD1 tool designed to meet the demands of automotive technicians. It offers sophisticated diagnostics for GM vehicles, making it a favorite in many auto shops.
Pros:
- High-quality build and functionality
- Comprehensive diagnostics and troubleshooting
- User-friendly interface
Cons:
- Pricey compared to consumer-level scanners
- Requires a learning curve for full use
- The unit will work for all Mercedes vehicles 1988-1995 with the 8 or 16 diagnostic port which you can find in the engine bay or the fuse box. You will be able to pull and reset your trouble codes.
- Everything you need will be provided on how to read the fault codes and how to clear the fault codes including a Master PDF file that will assist you in identifying the trouble codes and check engine lights.
- High quality test leads - Black, Yellow and Red.
- Comprehensive master code file for 1988-1995 mercedes vehicles.
- Solid construction with bright LED.
10. OTC 3109 Code Reader
The OTC 3109 is another excellent choice for GM vehicle diagnostics. This OBD1 scanner is designed to read and erase trouble codes, making it a prudent tool for anyone dealing with diagnostic issues.
Pros:
- Affordable option for basic scans
- Simple to understand and use
- Durable build quality
Cons:
- May not support advanced features
- Can be limited in compatibility
- Live OBD II Datastream – Reads codes and live engine data for all 1996 and newer cars and light trucks
- ABS codes and definitions for most 1996-2013 GM, Ford, Chrysler, Toyota, Honda, Nissan, and Hyundai vehicles
- Erase codes and turn off the check engine light
- Enhanced Engine and Transmission Codes and Freeze Frame data
- MIL Status and I/M Monitors
This selection of the best OBD1 scanners GM has to offer will aid you in making informed decisions on diagnostics for older vehicles. Whether you’re a professional mechanic or a DIY enthusiast, investing in the right scanner can enhance your diagnostic capabilities and lead to better vehicle maintenance.
Buying Guide for OBD1 Scanner for GM Vehicles
When looking for an OBD1 scanner for GM (General Motors) vehicles, it’s important to consider several factors to ensure you choose the right tool for your needs. OBD1 (On-Board Diagnostics 1) systems were used primarily in vehicles manufactured from 1982 to 1995. Below is a comprehensive guide to help you make an informed purchase.
1. Compatibility
- Vehicle Models: Ensure the scanner is compatible with your specific GM model and year. OBD1 systems were used in various vehicles (Chevrolet, Buick, GMC, etc.).
- Protocol Support: Look for scanners that support the protocols used by GM vehicles, such as ALDL (Assembly Line Diagnostic Link).
2. Functionality
- Basic Functions: At a minimum, your scanner should read and clear trouble codes. Some might also provide live data and diagnostic functionalities.
- Advanced Features: For more thorough diagnostics, consider scanners that can:
- Monitor real-time data
- Interface with specific modules
- Perform system tests (like EVAP, O2 sensor tests).
3. Ease of Use
- User Interface: Look for a scanner with an easy-to-read display and intuitive controls.
- Portability: Consider the size and weight of the scanner if you plan to use it on the go.
- Software Updates: Some scanners come with software that can be updated, allowing for compatibility with more vehicle models or improved functionality.
4. Build Quality
- Durability: Choose a scanner that is sturdy and can withstand regular use. Look for features like impact-resistant casing.
- Cable Length: A longer cable can provide easier access to the OBD1 port, especially in larger vehicles.
5. Price Consideration
- Budget: OBD1 scanners come in a range of prices. Determine your budget and find a scanner that meets your needs without overspending.
- Value: Weigh the features against the price. A more expensive unit may provide more functionality, but make sure it’s worth the investment.
6. Reviews and Recommendations
- Customer Feedback: Read user reviews to gauge the reliability and effectiveness of the scanner.
- Expert Recommendations: Seek guidance from automotive forums or industry experts to find trusted brands and models.
7. Brand Reputation
- Consider established brands known for quality diagnostic tools. Popular brands for OBD1 scanners may include Actron, OTC, and Autel.
8. Additional Accessories
- Some scanners come with additional cables, adapters, or cases. These can enhance usability and protect your investment.
Recommended Models
-
Actron CP9125: Known for its simplicity and effectiveness for reading and clearing codes.
-
OTC 3111: Offers a straightforward design and functions for basic diagnostics on OBD1 GM vehicles.
-
Autel AL619: Although primarily an OBD2 scanner, it includes OBD1 capabilities and has advanced features.
Conclusion
Choosing the right OBD1 scanner for GM vehicles involves considering compatibility, functionality, ease of use, build quality, and budget. Take your time to research and read reviews to find the best kit for your needs. With the right OBD1 scanner, you can efficiently diagnose issues with your GM vehicle, saving time and potentially reducing repair costs.
