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10 Best obd2 scanner transmission temperature

Welcome to our top 10 product reviews for obd2 scanner transmission temperature. We've scoured the market to bring you the best of the best, with products ranging from a 7.1 score up to a whopping 9.8 score!

Updated January 2026
topTop product
1
MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester, Red Edition
picked 202 times today
9.8
Exceptional

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MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester, Red Edition

Main Highlights

OBD Code Reader & Battery Tester - the Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed. You can use it to check fault codes by yourself and display code definitions, understand the health of the vehicle, be fully prepared for going to the auto repair shop for car maintenance.

Advanced Battery & Alternator Test with Real-Time Monitoring - The OBD2 scanner also works as a battery tester to check the battery voltage and its starting performance. Accurately diagnose 12V battery health and alternator output. Live ripple analysis detects diode failures. (Test results may vary with temperature and vehicle age. Refer to manufacturer specs for pass/fail thresholds.)

Plug & Play for Every Driver - No Apps or WiFi needed. No additional battery or charger needed. Extended cable reaches tight spaces, while the intuitive menu works right out of the box. Perfect for DIYers and mechanics.

Wide Vehicle Compatibility - The OBD2 professional automatic scanner supports all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. Works with most 1996 and newer US cars, 2000 EU and Asian cars, light trucks, SUVs, and newer OBD2 and CAN vehicles both at home and abroad. Please check compatibility with your model before purchasing. The OBD2 code reader supports 8 languages - English,German, Dutch, Spanish, French, Italian, Russian and Chinese.

User-Friendly - The obd scan tool features a 2.8-inch TFT color screen for easier operation. It is also equipped with the latest industrial chip which makes its speed is 6 times faster than other obd coders. The fast and accurate results make it the ideal car obd diagnostic tool for auto shops and DIY users.

ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.

***Need Technical Assistance? Please contact the Seller directly.***

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9.8
Exceptional
amazon

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2
AUTOPHIX Bluetooth OBD2 Scanner, 3210 PRO Car Scan Tool Check Engine ABS SRS Transmission Wireless Code Reader Auto Car Diagnostic Scanner with Battery Test Exclusive APP for iPhone, iPad & Android
9.6
Excellent

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AUTOPHIX Bluetooth OBD2 Scanner, 3210 PRO Car Scan Tool Check Engine ABS SRS Transmission Wireless Code Reader Auto Car Diagnostic Scanner with Battery Test Exclusive APP for iPhone, iPad & Android

Main Highlights

5 IN 1 DIAGNOSTIC SCANNER: This is an OBDII scanner and 4 systems diagnostic tool. The AUTOPHIX 3210 PRO Bluetooth Auto Scanner not only has OBDII diagnostic function, but can also be used as an ABS/SRS/transmission scanner and check engine code reader. When it is an OBD2 scanner, you can use it to check if your car is ready for annual test via I/M preparation menu. In addition, the built-in DTC library, live data stream, data playback, performance testing and many more such functions are supported by it.

RELIABLE CAR HEALTH MONITOR: Are you confused when the ABS/SRS/Transmission/Check Engine warning light is blinking? The AUTOPHIX 3210 PRO Bluetooth Scanner will help you to do a thorough scanning and inspecting of your car and find out the root cause, which saves your time and money. Tip:The warning light will be turned off after the problem is solved. Airbag crash/collision data cannot be cleared, even if you replace the airbag with a new one.

RELIABLE CAR HEALTH MONITOR: Are you confused when the ABS/SRS/Transmission/Check Engine warning light is blinking? The AUTOPHIX 3210 PRO Bluetooth Scanner will help you to do a thorough scanning and inspecting of your car and find out the root cause, which saves your time and money. Tip:The warning light will be turned off after the problem is solved. Airbag crash/collision data cannot be cleared, even if you replace the airbag with a new one.

QUICK DIAGNOSIS: The 3210 PRO is the newest 2025 Enhanced 4-System Bluetooth Code Reader that retrieves vehicle information, reads/clears trouble codes, and displays a 4-in-1 live data stream. You'll easily find out what's wrong with your car. In just a few minutes, you'll be in control of your car!

ADVANCED DATA FLOW DISPLAY:AUTOPHIX 3210 PRO Bluetooth code reader allows you to graphically display your vehicle's data flow instead of boring text, including engine coolant temperature, engine RPM, vehicle speed, absolute throttle position, control module voltage, etc. You can view different parameter values corresponding to different times. The advanced data streams provide useful information for entry-level professionals and diyers who can troubleshoot vehicle problems quickly and efficiently.

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9.6
Excellent
amazon

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3
OBD2 Scanner Code Reader Tool: OBD Car Diagnostic Scan Tool - Auto Car Engine Fault Code Reader with Full OBD2 Functions - Diagnostic Machine Test Compatible with BMW Ford VW Audi All OBDII Vehicles
9.5
Excellent

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OBD2 Scanner Code Reader Tool: OBD Car Diagnostic Scan Tool - Auto Car Engine Fault Code Reader with Full OBD2 Functions - Diagnostic Machine Test Compatible with BMW Ford VW Audi All OBDII Vehicles

Main Highlights

35,901 DTC data lookup: Unlike traditional mode car diagnostic scanners, this innovative Engine Fault Code Reader Scanner for All OBDii Protocol Cars has a database of up to 35,901 DTCs, the old model OBD2 usually only have 3,000-10,000, which means that this obd2 scanner can better help diagnose and solve your vehicle faults, saving you time and surpassing the functionality of most conventional OBD databases on the market. This is a great option if you want to replace or upgrade an existing car scanner.

Enhanced OBD2 scanner diagnostic Tool: OBD2 Scanner has the professional-grade OBD functions you need to help fix the cause of your engine light. It can pinpoint the cause of warning lights, and provide accurate and fast results, it's your time and money saver. Car diagnostic scanner functions include: Reading and clearing DTC, viewing Freeze frame, reading I/M readiness, retrieving Vehicle info, Live data, Data stream, built-in 35,901 DTC library, Voltage test, RT curve, 02 sensor test, EVAP.

Easy to use- Plug & Play: The 2.8-inch color OBD2 gauge display (240 x 320 pixels) is clear and visible in various lighting conditions, enhancing your user experience. The 3-foot-long cable is made of flexible insulated material for a comfortable feel and increased safety. OBD2 scanner Supports 8 languages: English, German, Chinese, Spanish, French, Italian, Russian, Dutch. The car tool requires no battery or charger as it is powered directly from the OBDII data link connector in the vehicle

Precision monitoring & Analysis: This engine code reader offers advanced diagnostics, including testing of O2 sensors and EVAP systems. Perform a leak test on your vehicle's EVAP system and monitor the fuel tank's integrity. The O2 sensor test helps fine-tune the air/fuel mixture, improving fuel efficiency and reducing emissions, saving you money at the pump and reducing your car’s environmental impact. OBD2 is Ideal for both home mechanics and automotive DIYers, offering reliable diagnostics.

Extensive vehicle compatibility: The OBD2 scanner can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device has extensive vehicle compatibility with 1996 US-based, 2002 EU-based and 2008 Asian-based cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Not compatible with new energy vehicles or hybrid vehicles. Check compatibility with your vehicle model before purchasing.

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9.5
Excellent
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bestBest value
4
MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester
9.2
Very Good

Save £13.41

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MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester

Main Highlights

OBD Code Reader & Battery Tester - the Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed. You can use it to check fault codes by yourself and display code definitions, understand the health of the vehicle, be fully prepared for going to the auto repair shop for car maintenance.

Advanced Battery & Alternator Test with Real-Time Monitoring - The OBD2 scanner also works as a battery tester to check the battery voltage and its starting performance. Accurately diagnose 12V battery health and alternator output. Live ripple analysis detects diode failures. (Test results may vary with temperature and vehicle age. Refer to manufacturer specs for pass/fail thresholds.)

Plug & Play for Every Driver - No Apps or WiFi needed. No additional battery or charger needed. Extended cable reaches tight spaces, while the intuitive menu works right out of the box. Perfect for DIYers and mechanics.

Wide Vehicle Compatibility - The OBD2 professional automatic scanner supports all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. Works with most 1996 and newer US cars, 2000 EU and Asian cars, light trucks, SUVs, and newer OBD2 and CAN vehicles both at home and abroad. Please check compatibility with your model before purchasing. The OBD2 code reader supports 8 languages - English,German, Dutch, Spanish, French, Italian, Russian and Chinese.

User-Friendly - The obd scan tool features a 2.8-inch TFT color screen for easier operation. It is also equipped with the latest industrial chip which makes its speed is 6 times faster than other obd coders. The fast and accurate results make it the ideal car obd diagnostic tool for auto shops and DIY users.

ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.

***Need Technical Assistance? Please contact the Seller directly.***

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9.2
Very Good
amazon

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5
MOTOPOWER MP69038 Car OBD2 Scanner Code Reader Engine Fault Code Reader Scanner CAN Diagnostic Scan Tool - Elite Edition
9.1
Very Good

Save £6.49

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MOTOPOWER MP69038 Car OBD2 Scanner Code Reader Engine Fault Code Reader Scanner CAN Diagnostic Scan Tool - Elite Edition

Main Highlights

【Elite Edition】- Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.

【Extensive Vehicle Compatibility】- The MP69038 obd scanner can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device has extensive vehicle compatibility with 1996 US-based, 2003 EU-based and 2008 Asian-based cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Not compatible with new energy vehicles or hybrid vehicles. Check compatibility with your vehicle model before purchasing.

【Premium OBD2 Code Reader with Enhanced Coverage and Functionality】- The Scanner 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.

【Easy self-diagnosis of emission status and other important information】 - Know your smog check results before your state does. The scanner determines whether you’ll pass a state vehicle smog test. It can also provide trip cycle procedures for completing your smog check.

【ABS / Airbag / SRS codes NOT Supported】- It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / SRS / Oil Service Light, etc.

【Compact Design with powerful performance】 - Mini size and light weight for easy operation. It helps you easily find the problem and fix the problem.

【Connection Guide】 - Plug the scanner into the OBDII port on your car, turn on the ignition and then press the Confirm button to make the connection. To view the live data, please start the engine. If connection failure, please contact motopower directly for assistance.

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9.1
Very Good
amazon

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Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

6
MOTOPOWER MP69033 OBD2 Scanner Universal Car Engine Fault Code Reader, CAN Diagnostic Scan Tool for All OBD II Protocol Cars
8.8
Good

Save £6.51

Free Shipping

MOTOPOWER MP69033 OBD2 Scanner Universal Car Engine Fault Code Reader, CAN Diagnostic Scan Tool for All OBD II Protocol Cars

Main Highlights

Multi-Functions - Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.

Wide Vehicle Compatibility - The OBD2 professional automatic scanner supports all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. Works with most 1996 and newer US cars, 2000 EU and Asian cars, light trucks, SUVs, and newer OBD2 and CAN vehicles both at home and abroad. Supports 6 languages - English,German, Dutch, Spanish, French, Italian. 【Refer to the Compatibility Guide to see if the scanner supports your car. 】

Plug & Play for Every Driver - No Apps or WiFi needed. No additional battery or charger needed. Extended cable reaches tight spaces, while the intuitive menu works right out of the box. Perfect for DIYers and mechanics. Designed with a clear LCD screen (128 x 64 pixels) - white backlight and contrast adjustment.

Compact Design - Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner: scroll up/down, enter/exit and buttons that quick query VIN vehicle number & the DTC fault code.

ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.

Connection Guide - Plug the scanner into the OBDII port on your car, turn on the ignition and then press the OK button to make the connection. To view the live data, please start the engine. 【Erase Codes】 - When you find the fault codes, please fix the problem before erasing the codes. If the codes erased without the problem fixed, the engine fault light may turn on again in the future.

Please make sure refer to the Compatibility Guide to see if the scanner supports your car. If you have any question, please contact the seller/store directly for assistance. We provide hassle-free return or refund. 【Direct refund without return if any quality problem or compatibility issue. Save your time and cost.】

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8.8
Good
amazon

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8
Obd2 Code Reader Obd Scanner: Wireless Bluetooth 5.2 Car Diagnostic Scanner Tool - Engine Fault Code Reader for iOS Android Windows - Car Code Reader Diagnostic Machine Tester with Full OBDII Systems
8.4
Good

Free Shipping

Obd2 Code Reader Obd Scanner: Wireless Bluetooth 5.2 Car Diagnostic Scanner Tool - Engine Fault Code Reader for iOS Android Windows - Car Code Reader Diagnostic Machine Tester with Full OBDII Systems

Main Highlights

5.2 Bluetooth OBD2 Scanner: OBD2 car diagnostic instrument has complete system scanning tools and intelligent diagnostic reports. It has the characteristics of stable connection, faster data transmission and low power consumption. It is 10 times faster than other Bluetooth 3.0 or 4.0 adapters. OBD2 car diagnostic tool quickly detects vehicle problems and provides real-time parameter monitoring. Timely detection and solution of problems ensure your driving safety.

Data stream data display: Including auto engine speed, gearbox, coolant temperature, fuel system status, vehicle speedometer, airbag, intake manifold pressure, ignition advance, intake temperature, flow air pressure, throttle absolute position, oxygen sensor voltage/related short-term fuel reduction, fuel system status, fuel pressure.

Easy to use: Using Odb2 reading tool is very simple, small and compact design, just find the OBD car port to insert and use. By scanning the QR code on the package, download the app and connect to the OBD2 scanner. By pairing the car diagnostic tool with the mobile phone. It can be connected to any IOS, Android and Windows devices. As a code reader, it can scan real-time sensor data directly from the vehicle's onboard computer.

Wider car compatibility: The diagnostic tool supports more than 100 car brands and 100,000 models, including most vehicles manufactured in the United States since 1996, or all OBDII protocol vehicles manufactured in Europe since 2001, vehicles with OBD2 interface and 12V car battery. This application also has 15 languages, which allows you to ignore language barriers.

Quickly find obd fault codes: Supports use on mobile phones and Windows PCs. The on-board wireless mini card reader diagnostic function has fault code definitions, which is very useful for car owners to repair car problems or replace faulty parts, and solve problems more efficiently. If you are not sure whether the Ujingzhou professional car scanner supports your car or encounter any problems during use, you can leave us a message on Amazon (car brand/year/model).

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8.4
Good
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9
Universal OBD2 Engine Fault Reader Car Scanner, Professional Auto Car Diagnostic Scanner Repair Tool, HD LCD Display Screen, I/M Readiness Smog Check CAN Diagnostic Scan Tool (RED)
8.2
Good

Free Shipping

Universal OBD2 Engine Fault Reader Car Scanner, Professional Auto Car Diagnostic Scanner Repair Tool, HD LCD Display Screen, I/M Readiness Smog Check CAN Diagnostic Scan Tool (RED)

Main Highlights

Read and Clear Engine Codes with Essential Diagnostics: This plug-and-play OBD2 scanner allows users to read and clear engine-related fault codes, view freeze-frame data, check I/M readiness, and retrieve basic vehicle information. It offers a straightforward way for drivers to understand engine system status without using complex diagnostic tools.

Freeze-Frame Data for Fault Analysis: The scanner displays freeze-frame information recorded by the vehicle’s ECU at the time a fault occurred. Users can view key parameters such as RPM, vehicle speed, engine load, fuel pressure, airflow, and coolant temperature, helping them better understand the conditions that triggered the check-engine light.

Emission System Status and Vehicle Info Retrieval: Supports viewing the operating status of major emission-related monitors on OBD2-compliant vehicles, including misfire, fuel system, O2 sensors and EVAP. It also allows retrieval of useful data such as VIN, Calibration IDs and CVNs, helping users access important vehicle details when needed.

Compact Design and Broad Compatibility: Designed with a compact, non-slip body and simple four-button controls, this handheld tool is easy to operate and supports five languages including English and Spanish. It works with most OBD2-compliant vehicles from 2000 and newer in the US, Europe and Asia. Note: Not compatible with ABS, SRS or TPMS proprietary systems.

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8.2
Good
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10
HTTYHT FORScan OBD2 Adapter OBDII Diagnostic for Windows OBD2 Scanner USB Adapter with MS-CAN/HS-CAN Switch OBD2 Diagnostic Car Coding Tool for Ford Lincoln Mazda Mercury Series Vehicles
8.1
Good

Save £1

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HTTYHT FORScan OBD2 Adapter OBDII Diagnostic for Windows OBD2 Scanner USB Adapter with MS-CAN/HS-CAN Switch OBD2 Diagnostic Car Coding Tool for Ford Lincoln Mazda Mercury Series Vehicles

Main Highlights

OBD2 CAR SCANNER: FORScan OBD II Adapter is a vehicle code reader, ELM327 scanner, clear check engine light, FORScan and diagnostic scan tool. Resolve car issues promptly and effectively with this advanced diagnostic scanner.

USB V1.5 ADAPTER : OBDii adapter with the reliable advantage of USB cable connection and V1.5 version hardware avoids data corruption and lost packets. The MS-CAN/HS-CAN switch allows fast data transmission with a rapid data of up to 500 kbit/s, enabling advanced programming and coding capabilities for professional diagnostics.

Enhanced Vehicle Maintenance Tools: Equip yourself with a portable OBD 2 USB adapter that enables you to check and clear engine fault codes, reset parameter ids (PIDs), change car configuration data, analyze O2 sensor data, and monitor key parameters like fuel pressure, coolant, DPF, and oil temperature.

Supported Vehicles: This car OBDii diagnostic coding tool can perfectly scan, programming and modifying hidden settings. All for F-ord, for Mazda, for Lincoln, for Mercury vehicles that can be addressed using an ELM via an OBDII connector.

Wide Software and OS Compatibility: The OBD2 fault code USB adapter is compatible with FORScan, Elmconfig, FF2, and FoCCCus. Fully compatible with all Windows versions from XP, Windows 2000/8. 8.1 and Windows 10.

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8.1
Good
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