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Best Professional Automotive Diagnostic Scanner 2021 Reviews

Choosing the best OBD2 scanner can be quite a daunting task. This is because there are so many diagnostic scanners to choose from, but this shouldn’t deter you from searching and discovering the best automotive OBD2 scanner for your needs. As a professional mechanic, I have used most of these Automotive Diagnostic Scanners. From my personal experience, Autel scanners and Launch scan tools are the most reliable scanner for technicians or professional mechanics.Best Professional Automotive Diagnostic Scanner
Most of these scan tools have bidirectional features. In this Best Professional Automotive Diagnostic Scanner, I’ve conducted thorough research and brought you the top-rated 10 professional automotive diagnostic scan tools.  They are from some of the best brands and come with outstanding features. These scanners will help you diagnose a lot of functions, and they are very accurate and reliable in operation. They are as follows:

Top 10 Best Professional Automotive Diagnostic Scanner Chart

ImagesProfessional Scanners listWeightPrice Idea
Editor's Choice
Check Price
Autel Maxisys Elite Diagnostic Tool (Upgraded Version of MS908P Pro) with WiFi Bluetooth Full OBD2 Automotive Scanner with J2534 ECU Programming & 2 Years Free Update
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24.9 poundsHigh
Check PriceLAUNCH X431 V X431 V X431 V+ Diagnostic Scan Tool (Upgraded Version of X431V) for Bi-Directional Control, Full Systems Diagnoses, 11 Reset Functions Including SAS, DPF, BMS, TPMS, Key Programming, ECU Coding with 2-Year Free Online Update
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13.23 poundsLow
Check PriceAutel Maxisys MS908 Diagnostic Tool Automotive Scanner Android Analysis System with Advanced Coding Online Update
Read Review
12 poundsMedium
Check PricePower Probe 3896 Chrome Special_Use_Testers
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10 poundsHigh
Check PriceAutel Maxisys MS906 Automotive Diagnostic Scanner Scan Tool Code Reader (Upgraded Version of DS708 and DS808) with OE-level Vehicle Coverage of Read/Erase Codes, Actuation Tests, Adaptations etc.
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22 poundsLow
Check PriceLAUNCH X431 PROS Mini Automotive Diagnostic Tool OBD2 Scanner Code Reader with WiFi & Bluetooth Covering 108 Vehicle Makes + 2 Years Free Update
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7.45 poundsLow
Check PriceAutel MaxiCOM MK808TS Enhanced Diagnostic Scan Tool of MK808BT and MK808 with Complete TPMS Functions, Full Systems Diagnoses Including EPB, BMS, SAS, DPF, Oil Reset IMMO Service
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5.7 poundsLow
Check PriceOTC 3893 Encore Professional WI-FI Enabled Diagnostic Tool Kit
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10.9 poundsMedium
Check PriceFOXWELL NT644 Automotive OBD2 Scanner Full System OBD II Code Reader Car Diagnostic Scan Tool with Oil Light Reset, ABS, SRS, EPB, BRT, SAS, DPF, TBA and TPMS
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3.45 poundsLow
Check PriceInnova Color Screen with Bluetooth 3160g Code Reader/Scan Tool with ABS, SRS, and Live Data for OBD2 Vehicles
Read Review
1.37 poundsLowest

Best Professional Automotive Diagnostic Scanner Reviews 2021

If you are looking for the best car diagnostic tool for professional use, then check these Automotive Diagnostic Scanners list.

Autel Maxisys Elite Diagnostic Tool

The Autel Maxisys elite diagnostic scanner is one of the best professional-grade scan tools on the market. It is equipped with the NIVIDA Tegra” 4 quad-core processor 1.8HGz that offers a fast operation speed and diagnosis. The Android 4.4.4 operating system allows you to multitask and perform different functions at the same time. The results displayed are easy to interpret as it comes with a large and crystal clear 9.7-inch retina display with a resolution of 2048×1536 dpi. Autel maxisys elite is one of the Best Professional Automotive Diagnostic Scanner for advanced mechanics/technicians/professionals. Maxisys Elite is an upgraded version of the Autel maxisys pro ms908p automotive diagnostic scanner. You can read here Autel Maxisys Pro and Elite features difference.

The automotive diagnostic scan tool is compatible with over 80 US, European, and Asian vehicles. This is a very versatile scanner as it not only supports full OBD2 functions but as well advanced functions like SAS reset, Throttle matching, Anti-theft matching, Tire pressure reset, DPF reset ECU matching, and much more. The software updates automatically and it’s free for 2 years. Autel Maxiim im608 is a similar scanner to the Elite, but with im608, you will get the only 1-year free update.

Technical Specifications of the Autel Maxisys Elite Diagnostic Tool(Upgraded Version of MS908P Pro)

Features Autel Maxisys Elite
Works: All 1996 and newer vehicles
Operating System(OS): Android
Processor: NVIDIA Tegra 4 (4-PLUS-1 Quad-core Processor) 1.8GHz with ARM Cortex – A15 CPU
Display: 9.7” Retina display with 2048X1536 resolution & Capacitive touch screen
Memory: 2GB RAM & 32GB Embedded Memory
Connectivity: 802.11a/b/g/n/ac WIFI Version 2.1 3Mbs,
Bluetooth RJ45,
Ethernet Connection 3.0 USB(2.0 Compatible)
HDMI 1.4a
Support SD Card up to 32GB
Camera: Rear: 8.0 Megapixel, Autofocus with Flashlight
Front: 2.0 Megapixel
Sensors: Ambient Light Sensor, G-sensor
Storage Temperature: -20 to +70°C
Operating Temperature: -10 to +55°C
Protocols: Most OBD1/OBD2
Check Engine Light(MIL): Yes
Views Freeze Frame Data: Yes
Reads, stores Data: Yes
Clears codes & resets monitors: Yes
Playbacks live sensor data: Yes
Get Transmission codes: Yes
Remote Control Tech Support: Yes
Software Update: Two years of free update
Warranty: One year warranty
Price: Autel Maxisys Elite automotive Diagnostic ToolCheck Price


  • Broad vehicle coverage
  • Ergonomic design
  • Performs advanced ECU coding and programming
  • Automatic software update
  • Wireless connection
  • Intuitive user interface
  • Full OBD2 functions
  • Fast and accurate
  • High-quality camera
  • Allows the user to multitask
  • Powerful battery with an excellent runtime of 8-plus hours


  • It is quite expensive
  • The OBD2 code reader does not support ECM reprogramming for GM vehicles

Launch X431 V+ Diagnostic Scan Tool

The Launch X431 V+ diagnostic scanner is an upgraded version of the Launch X431 V scan tool. This gadget features a large 10.1-inch color LED screen for easy interpretation of results. It is powered by a 7000 mAh battery with 6 to 7 hours of continuous use. The X431 V+ diagnostic scanner has a 1.4 GHz quad-core processor for faster operation. Launch X431 has very limited features comparing Launch X431 V+. If you are looking for the best professional car diagnostic tool at an affordable price, then buy this. It is also considered one of the best car key programmer.

This device can be utilized to perform various functions. It provides multiple reset services, full systems diagnosis, and has bi-directional control. The scanner is also compatible with a wide range of vehicles from the US, Europe, and Asia. Popular vehicle brands include Audi, Chrysler, Jeep, Honda, Nissan, etc. It also has wireless Bluetooth and Wi-Fi connections for convenient use.

Technical Specifications of the Launch X431 V+ Scan Tool

Features Launch X431 V+
Works: Over 68 car brands and 220 car models from America, Europe, Asia
OS: Android
View Live Data: Yes
Check Engine Light: Yes
Oil Reset Service: Yes
Active Test: Yes
View Freeze Frame: Yes
ABS,SRS, Body control module: Yes
Battery Register /Battery Maintenance: Yes
Wifi,Bluetooth: Yes
Software Update Option: Two-years free update
Warranty: One-year
Price: Launch X431 V+ auto Diagnostic Scan ToolsCheck Price


  • Easy-to-use
  • Large storage capacity
  • Extensive vehicle coverage
  • Powerful lithium polymer battery for off-car review
  • Full systems diagnosis and 11 reset functions
  • Bi-directional control
  • It is grease and water-resistant
  • Wireless connection
  • 2-years of free online update


  • Limited free software update for only 2 years
  • Somehow expensive for a DIY enthusiast and small car repair shop

Autel Maxisys MS908 Automotive Diagnostic Scanner

The Autel Maxisys MS908 scan tool is ideal for professional technicians and busy auto repair shops. This advanced scanner offers basic, advanced, and special features. So, it is great for tackling workshop operations to keep all data files and vehicle info. The scanner is compatible with more than 80 US domestic, European, and Asian vehicle makes and models. Some of the notable functions it provides are ECU coding, actuation tests, live data, coding, and adaptations. If you are looking for the best professional automotive diagnostic scanner at an affordable price, then buy this. Because, if you go for the Autel Maxisys MS908CV which have a few extra features; Then you have to spend one thousand dollars extra.

Featuring the Cortex-A9 quad-core processor, this is a very fast scan tool that will allow you to diagnose many vehicles within a short period of time. The automotive scanner has an excellent Bluetooth range of 755 feet, which enables the user to diagnose the car from the bench or under the hood without any issue. Instant software updates allow you to have the latest bug fixes and software to keep the gadget working at an optimal level.

Technical Specifications of the Autel Maxisys MS908 Diagnostic Scanner

Features Autel Maxisys MS908
Works: More than 80 US domestic, Asian and European makes and models
USB, audio, and auxiliary ports: Yes
Wi-Fi technology: Yes
Displays live data in text, graph and analog: Yes
Read all kinds of DTCs: Yes
Freeze Frame Data: Yes
ABS, DPF, EPB, SAS, SRS, TPMS Services: Yes
Auto VIN Detection: Yes
Oil Reset Service: Yes
Records and playbacks results: Yes
Check Engine Light: Yes
Fuel Injector Coding: Yes
Live Data: Yes
Software Update: Free online update
Warranty: Limited one year warranty
Price: Autel Maxisys MS908 Automotive Diagnostic ScannerCheck Price


  • Broad vehicle coverage
  • Sleek and portable design
  • Intuitive user interface
  • Powerful functions
  • Excellent wireless Bluetooth connection
  • Anti-theft matching
  • Fast running speed
  • Automatic software updates


  • It is expensive
  • It is quite cumbersome to select the updates that you want

OTC 3896 Bosch Evolve Diagnostic Scanner

With the industry-leading 10.4-inch color LCD display, the OTC Evolve 3896 is a device that will make diagnosing error codes to be easy and fast. Despite being the scanner with the largest LCD screen, it is still lightweight as it weighs 10 pounds. OTC 3896 scan tool is fast and powerful, thanks to its Android 5.0 operating system. Additionally, you can move around freely with the scanner in the garage as it has a strong dual Wi-Fi architecture for wireless connection.

The OTC 3896 Bosch Evolve car scan tool is compatible with J2534 for emissions-related, ECU programming and reflash. It also covers most vehicle makes and models manufactured from 1986 and later. On top of that, it comes with a backup battery for off-car review analysis and one year of free online software updates.

Technical Specifications of the OTC Evolve Scan Tool

Features OTC Evolve
Works: Most vehicles 1986 and newer
Display: 10.4″ optically bonded
WiFi Connectivity: Dual Wifi System and Bluetooth
Ports: USB, HDMI, Ethernet, 3.5mm headphone jack
Including Code-Assist: Yes
AutoDetect: Yes
Modes: All 10 Modes of OBD II
Identifix Direct-Hit web-based Info: Yes
Repair-Trac and Code-Assist DTC VIN Specific Tech Tips: Yes
Updates Option: Internet upgradeable for coverage and vehicle updates
Standard Warranty: Lifetime hardware warranty
Price: OTC 3896 Bosch Evolve Diagnostic ScannersCheck Price


  • Simple and sleek construction
  • Rugged construction for durability
  • Large LCD color screen for easy display of results
  • Wireless connection
  • Fast and powerful
  • Extensive vehicle coverage
  • Backup battery
  • Free online software update
  • Sturdy carrying case for easy storage


  • It is very expensive
  • It has only one year of free updates

Autel Maxisys MS906 Best Professional Automotive Diagnostic Scanner

This is another outstanding professional diagnostic scan tool from Autel. It is not very expensive, considering the features that you get. The Autel Maxisys MS906 automotive scanner is easy to use and very fast, just like the Autel MP808. It has an 8-inch color screen and runs on a 5000 mAh lithium polymer battery. The gadget is also grease and water-resistant for durability. Since it is equipped with an Android operating system and Exynos 5260 6-core processor, this is a fast and powerful scan tool to have in your car repair shop for car diagnosis. If you want a full-system diagnosis best professional automotive diagnostic scanner, then buy this. Remember, Autel MS906BT, Autel 906TS, and Autel MS906 feature almost identical. But, each diagnostic tool has one-two extra features difference, and price also varies for that.

Related: Similarities and Differences between the Autel MS906 VS MS906BT VS MS906TS scanners

The combination of comprehensive functions, full systems diagnosis, superior hardware, and online update make it be a reliable scanner for commercial or personal use. It covers more than 80 car manufacturers including the popular brands BMW, GM, Chevrolet, Dodge, Ford, Benz, and many more.

Technical Specifications of the Autel Maxisys MS906 auto diagnostic scanner

Features Autel ms906
Operating System: Android 4.4.2, KitKat
Check Engine Light: Yes
Oil Reset: Yes
Live data: Yes
Recording Modes: Full Screen waveform graphing analysis
Active Test: Yes
Views freeze frame data: Yes
ECU information: Yes
ECU coding, Injector coding: Yes
Real-time push message notifications via the internet: Yes
Vehicle Coverage: More than 80 US, Asian and European car
Update Option: 1-year free update
Warranty: 12-Month Limited Warranty
Price: Autel Maxisys MS906 Professional Automotive Diagnostic ScannerCheck Price


  • AutoVIN technology for easy vehicle identification
  • Extensive vehicle coverage
  • Performs basic and advanced functions
  • Easy-to-use gadget
  • Full systems diagnosis
  • Ergonomic and sturdy construction
  • Fast and accurate
  • Built-in 8-inch camera for sharing info with other technicians
  • Free online software update
  • One-year warranty


  • It takes longer to recharge the scanner
  • It has free online updates for only one year

Launch X431 PROS Mini OBD2 Car diagnostic Scan Tool

If you want to perform functions like key coding, battery reset, electronic throttle position reset, or DPF regeneration, choose Launch X431 Pros mini scanner. Apart from offering these functions, this TPMS scan tool can as well diagnose all systems such as engine, powertrain, body, fuel system, transmission, etc. It has a big screen for quick interpretation of results, and its ergonomic design makes handling it be easy. Launch x431 pros mini is the best scan tool for home mechanics.

Related: Best TPMS Tool Review 2021 [Most Popular Relearn Reset Tools list]

The scanner features an Android 5.1 operating system that makes it be fast. Moreover, it has a wireless Bluetooth connection for diagnosing the vehicle even when you’re not inside. One of the key features of the X431 is that it is compatible with over 108 US, European, and Asian vehicle makes and models. You can as well update the software for free for 2-years.

Technical Specifications of the Launch X431 Pro Mini Scan Tool

Features Launch X431 Pro Mini
Works: Over 10000+ cars
(OS): Android 5.1
Memory: RAM: 2GB Capacity, (internal/SD card): 16GB
Check Engine Light: Yes
Oil Reset Service: Yes
Camera: Front 2 mp/ Back 5mp
Freeze Frame Data: Yes
Electronic Parking Brake Reset: Yes
Wifi,Bluetooth: Yes
ECU Coding: Yes
Actuation Test: Yes
Injector Coding: Yes
Software Update Option: Two-Years Free Update
Warranty: 2-Years Warranty
Price: Launch X431 PROS Mini professional OBD2 Scan ToolCheck Price


  • Easy-to-use LCD color display
  • Works with most US, European, and Asian vehicle makes and models
  • Wireless connection
  • Performs special and advanced functions
  • Sleek and compact scanner
  • Fast and accurate with the Android operating system
  • All systems diagnosis
  • ECU coding
  • Anti-theft matching
  • 2-years of free software updates
  • Poor customer support


  • It has compatibility problems

Autel MaxiCOM MK808TS Diagnostic Scanner

Are you looking for an affordable professional scan tool? Look no further than the Autel MK808TS scanner. It is the upgraded version of the Autel MK808BT and Autel Maxicom MK808 obd2 scanner. The Autel MaxiCOM MK808TS diagnostic code reader is favorably priced but still comes with a wide range of features to help mechanics perform accurate and fast diagnosis. The device has a cortex-A9 processor and Android 4.4.2 for quick operation. The 7-inch LCD color screen enables the user to read results with much ease, even in poor light conditions. If you are looking for a cheap but best professional automotive diagnostic scanner, then buy this scan tool. You may also check the most popular scanner Autel Maxidas DS808 which price is identical and similar features. But, You will miss lots more features if you go with the cheaper Autel maxicheck mx808 scan tool.

Related: Autel MK808 VS DS808(Comparison Chart)

The MaxiCOM MK808TS can be utilized by mechanics as well as car enthusiasts to perform tire pressure & temperature resetting, read & clear diagnostic codes, oil reset, BMS service, Anti-theft matching, and other special services as well as advanced functions. Some of the car brands that you can use include Ford, Dodge, Suzuki, Subaru, GM, Ferrari, Toyota, Hummer, and many more.

Technical Specifications of the Autel MaxiCOM MK808TS Diagnostic Scanner

Features Autel MaxiCOM MK808TS
Works: Over 10000+ cars
(OS): Android 5.1
Memory: 32GB
Check Engine Light: Yes
Oil Reset: Yes
Live Data: Front 2 mp/ Back 5mp
Freeze Frame Data: Yes
Wifi: Yes
All Systems Diagnostics: Yes
Reading/Clearing DTCs: Yes
Batteries: 1 Lithium Polymer batteries required. (included)
Software Update Option: 12-month free update
Warranty: One-Years Warranty
Price: Autel MaxiCOM MK808TS Automotive Diagnostic ScannerCheck Price



  • Compatible with most 1996 and newer US, EU, Asian vehicle makes and models
  • Advanced and special functions
  • Wireless connection
  • Intuitive user interface
  • Full systems diagnosis
  • Fast cortex-A9 processor
  • Large storage capacity
  • One-year free software update
  • One-year warranty


  • It has compatibility problems
  • The IMMO function doesn’t work on European vehicles
  • Comes with only 1-year of free upgrades

OTC 3893 Encore Professional Diagnostic Tool Kit

The OTC 3893 Encore professional scan tool is easy-to-use with a wide range of functions. It is equipped with an Android operating system that makes it be fast and fun to use. It’s just like using your Android tab with lots of apps and quick boot up time. The automobile diagnostic scanner also has built-in Wi-Fi and is embedded with Google search, which enables the user to search for a vehicle and DTC with one touch from any corner of the garage.

Related: Features Comparison – OTC Encore VS Autel Maxisys

The special feature of the OTC 3893 is its embedded Identifix assets present during every repair, including Repair-Tac and Code-assist. Additionally, the encore diagnostic scan tool is compatible with most 1996 and newer US, European, and Asian vehicle makes and models. With a lifetime hardware warranty, this is a wonderful scanner to have in your car repair shop for diagnosis.

Technical Specifications of the OTC 3893 Encore Scan Tool

Features OTC Encore
OS: Android
Memory: 32GB SSD
Bluetooth Wireless TPMS Sensor Registration: Yes
AutoDetect Repair Info Search: Yes
Micro Training Videos: Yes
All System DTC Scan: Yes
Maintenance Test: Yes
Automated System Test: Yes
Remote Technical Support Diagnostics: Yes
Software Updates Option: Yes
Warranty: 1 Year / Lifetime
Price: Professional Diagnostic Tool KitCheck Price



  • Extensive vehicle coverage
  • Faster operation
  • Intuitive user interface
  • Fast boot time
  • Lifetime hardware warranty
  • Sturdy carrying case for proper storage
  • Internet updateable


  • Printing using the scan tool is very challenging as you have to register with Google before doing so.
  • It is somehow expensive for small car repair shop owners, DIY enthusiasts

Foxwell NT644 Automotive Diagnostic Scanner

Foxwell NT644 diagnostic code reader is one of the most affordable professional scanners on this list. This doesn’t mean that it performs poorly than other professional scanners. As a matter of fact, the Foxwell NT644 code reader can read and erase error codes, identify the vehicle you’re testing, perform oil service reset, and many other functions. If you want an all-system scanner at a budget price, then it is the best professional automotive diagnostic scanner.

The scan tool can be used even by starters as it features an impressive 4.30-inch color screen and clearly arranged keypad for quick and easy diagnosis. Moreover, you can use it on more than 1996 US-based, 2000 EU-based, and newer vehicles. With a lifetime of software updates and a one-year warranty, this is a gadget worth investing in.

Technical Specifications of the Foxwell NT644 Pro Diagnostic Scan Tool

Features Foxwell NT644 Pro
Compatibility: OBDI and OBDII
Works: All 1987-1996 and later vehicles
Display: Shortcuts and impressive 4.3″ color display
Oil Service Reset(Supports 48 car makes): Yes
Check Engine light: Yes
I/M monitor readiness test: Yes
View Freeze Frame Data: Yes
Display Live Data in Text: Yes
Injector (Supports 34 car makes): Yes
Electronic Parking Brake EPB(Supports 42 car makes): Yes
Software Update: Lifetime Free
Warranty: 12 months warranty
Price: Foxwell NT644 Automotive Diagnostic ScannersCheck Price


  • Covers more than 61 vehicle makes and models from US, Europe, and Asia
  • Compatible with both OBD1 and OBD2 cars, minivans, SUVs, and light-duty trucks
  • User-friendly design
  • Simple to use
  • Compact and portable
  • Supports a wide range of functions
  • Lifetime free online updates
  • One-year warranty


  • It has compatibility problems
  • You will have to pay for software updates after 18 months
  • It is not possible to update the software directly using a USB cable

Innova 3160g Code Reader with Bluetooth

The Innova 3160g is a simple but powerful diagnostic code reader that can be utilized by both DIYers and professional mechanics. It covers most foreign or domestic vehicle makes and models manufactured from 1996 and the latest. This includes OBD II compliant light truck, car, hybrids, and SUV. The automotive scanner has a large 3.5-inch screen for a clear display of results, and the keypad is well arranged for easy use.

This device can be used to perform functions like resetting oil light, reading/clearing check engine light, and resetting battery maintenance light, among other functions. The gadget will have the latest software as it comes with one year of free updates and one year warranty.

Technical Features of the Innova 3160g (Latest Model)

Features Innova 3160g
Display: 3.5″ LCD Screen
Check Engine Light: Yes
Brake(ABS) Codes: Yes
Live Data: Yes
OBD1: (Optional Upgrade)
Emissions Readiness: Yes
Airbag(SRS) Codes: Yes
English, French, and Spanish: Yes
Oil / Battery Reset: Yes
Repair Solutions: Yes
Live Data Graphing: Yes
LED Lighted Connector: Yes
Software Update: Free update via online
Warranty: One year warranty
Price: Innova 3160g Code Reader with BluetoothCheck Price


  • A wider range of functions
  • Broad vehicle coverage
  • User-friendly design
  • LED lighted indicator
  • Free online updates
  • Repair solutions for quick diagnosis


  • The free software update is only for one year
  • It is not compatible with all vehicles manufactured from 1996 and newer

Actron CP9690 Trilingual OBD1/OBD2 Scan Tool

Actron is another top brand with outstanding diagnostic scan tools. The Actron CP9690 is able to perform oil and battery reset, monitor battery system, playback stored information, live engine data, and much more. This scan tool with CodeConnect has improved vehicle coverage of up to 2013. It also covers OBD 1 vehicles and can be updated to work on the most recent vehicles. Thus, it is the best automotive diagnostic scanner for obd1 and obd2. The larger colored display makes reading and erasing of error codes to be easy and fast. With the trilingual men, you will have a chance to select either Spanish or French, while English is the default language. This is an ideal scanner for professional mechanics and small car repair shops.

Technical Specifications of the Actron cp9690 trilingual and i/obd ii Elite scanner

Features Actron CP9690
Works: ALL 1996 and later vehicles
Display: Easy to read color LCD screen
Powertrain and ABS Vehicle coverage: Yes
Views freeze frame data: Yes
Support: OBD I, OBD II
Check Engine Light: Yes
Record, playback, and graph live engine data: Yes
Oil light and battery reset: Yes
Code Connect: Yes
Battery system monitor: Yes
Update option: Yes (Via internet)
Warranty: One year
Price: Actron CP9690 Trilingual professional OBD1/OBD2 Scan ToolCheck Price



  • Wider compatibility
  • Comprehensive functions
  • Intuitive user interface
  • Fast and accurate results
  • Trilingual menu
  • Record, playback, and graph live data
  • Sleek and compact design for easy storage


  • Limited vehicle coverage as it doesn’t cover vehicles made from 2013 or newer


Question: What is OBD 1? And why was OBD II created?
Answer: On-Board Diagnostics I (OBD I) was California’s first OBD regulation, which needed manufacturers to monitor some of the emission control parts on vehicles. OBD 1 became effective with the 1988 model year, but the system was not fully effective as they were limited to monitoring only some of the emission-related parts, and the monitors were not calibrated to a particular level of emission performance.

This led to the development of the OBD 2 system in order to handle the shortcomings of the OBD 1 system and make the system more powerful and user-friendly for mechanics as well as technicians.

Question: How do I know that my car is OBD2 compliant?
Answer: Each and every vehicle, whether gasoline or alternate fuel manufactured from 1996 and newer are required to have OBD 2 system. Additionally, all 1997 and newer model diesel-fueled passenger cars and trucks are also needed to meet the OBD 2 standards. A small number of 1994 and 1995 model gasoline vehicles were fitted with OBD 2 systems. To find out if your car has OBD2, simply search for the words “OBD II” on the emission control information label attached underneath the vehicle hood.

Question: How do I locate my car’s OBD2 port?
Answer: All OBD2 compliant vehicles come with a 16-pin connector located below the dashboard area near the driver’s seat. In some vehicles, it might be behind ashtrays or hidden by an easily removable plastic cover. Some car brands have labeled the plastic cover “OBD” on the outside.

Still, have a question after reading this best professional automotive diagnostic scanner article? Comment below.



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