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10 best transmission code readers for 2021 [Detailed review]

A transmission code reader is a small tool that helps you to read and find transmission related problems in a vehicle.

Since this system involves a lot of moving parts, wear and tear is common. You need a transmission scanner to avoid taking your car to a mechanic and resolve smaller issues by yourself.

Best transmission code readers reviews

Editor's PicksProductsOur Rating
Best OverallAutel MaxiCOM MK8089.5/10
Runner UpANCEL FX20009.5/10
Best ValueLAUNCH CRP1239/10
Best Budget BuyFIXD8.5/10
Also GreatBlueDriver Bluetooth Pro8.5/10

The transmission scan tools above are carefully chosen based on various aspects. You will figure out the reason behind this ranking after this review and we hope there will be one transmission code reader that is best suited your needs.

So, without further ado, let’s have a look at the ten best transmission scanners:

Autel MaxiCOM MK808 transmission scan tool

Autel MaxiCOM MK808
Autel MaxiCOM MK808 transmission scan tool
4.64.6 / 5
Autel MK808 is a tablet scan tool that can find both basic and advanced faults including transmission codes.

This is a tablet scan tool that can find both basic and advanced faults including transmission codes. It will tell you a lot about your transmission system and other components including BMS, DPF, ABS, SRS, AT, and SAS.

This 7-inch LCD operates on a battery with a runtime of 4.5 hours. Not only that, it has a built-in Android system (KitKat).

Features

Transmission and basic features: Autel MaxiCOM MK808 will help conduct a fuel system test, emission test, and read/clear engine lights including transmission codes.

Advanced functions: It supports many advanced features such as:

  • BMS: It will help you manage the battery system.
  • EPB: You can find faults in the electronic parking brake system.
  • SAS: MK808 supports steering angle calibration.
  • ABS/SRS: It can read problems in the anti-lock braking system and airbag systems.
  • TPMS: This feature checks the tire pressure and related faults.
  • Key programming: You can create a specific key for your car to avoid theft.
  • DPF: It will find degenerate particle filter problems such as soot build up.
  • Oil reset: The scanner will let you know when it is time to change the oil.

Vehicle coverage

MaxiCOM MK808 supports all 1996 and newer US-based and 2000 and newer EU based vehicles that are OBD2 compliant.

Autel MaxiCOM MK808 offers useful reset services.

Verdict

Autel MaxiCOM MK808 transmission scan tool can perform both basic and advanced functionalities, therefore, both professionals and beginners can use it to find problems in the engine and transmission system.

Pros

  • 1-year warranty.
  • Download updates over WiFi.
  • Excellent technology support from Autel tech team.
  • Very durable unit.
  • Comes with a charger.

Cons

  • Doesn’t support ECU programming.
  • TPMS doesn’t work on Toyota Highlander, 2009 Jetta, and some more models.
  • IMMO function doesn’t work on Benz.

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ANCEL FX2000 transmission diagnostic scanner

ANCEL FX2000
ANCEL FX2000 transmission diagnostic scanner
4.54.5 / 5
ANCEL FX2000 supports 4 car systems including engine, ABS, SRS, and transmission.

This FX2000 supports 4 car systems including engine, ABS, SRS, and transmission. It covers a wide range of brands and offers plenty of handy features including both basic and advanced functionalities.

Features

Full OBD2 function modes: This scanner supports Freeze Frame data (mode 5), Oxygen sensor test (mode 6), On-board Monitoring Test (mode 7), view and carbon canister test (Mode 8).

Transmission codes: This scanner will read all kinds of transmission codes in cars that are built after 2005, however, it doesn’t support reset functionality. It can read and display live data including vehicle speed, load, gear ratio adjustment, gear shifting, etc.

ABS/SRS: This transmission code reader can read and clear ABS and SRS light. It can also perform bidirectional requests in the anti-lock braking system.

Vehicle coverage

It supports all OBDI and OBDII vehicles, SUVs, minivans, light trucks, and hybrids that are built after 2005. Altogether, this scanner supports 46 brands.

Note: ANCEL FX2000 doesn’t support heavy trucks.

ANCEL FX2000 can do 4 systems diagnosis.

Verdict

ANCEL FX2000 transmission diagnostic scanner is suitable for people with modern cars (built after 2005). It covers all four car systems including engine, transmission, ABS, and SRS.

Pros

  • Supports 8 languages.
  • Large 4” TFT screen.
  • Supports DTC and VIN.
  • Shows live data in graphical form.

Cons

  • ABS/SRS/Transmission codes aren’t supported in vehicles built before 2005.

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LAUNCH CRP123 transmission code reader

LAUNCH CRP123
LAUNCH CRP123 transmission code reader
4.34.3 / 5
LAUNCH Creader CRP123 can read transmission codes and supports all 10 OBD2 modes. It allows you to check for problems in the car and solve the problem.

LAUNCH Creader CRP123 can read transmission codes and supports all 10 OBD2 modes. It allows you to check for problems in the car and solve the problem.

Features

Common features: It will let you check and clear engine light codes, perform I/M Readiness, freeze frame, record data, and identify vehicle information automatically via VIN. 

10 OBDII modes: This scanner can read information from the ECU such as EVAP, O2 sensor, emission info, vehicle info, freeze frame, etc.

Transmission codes: It will help you keep an eye on the transmission system by showing live sensor data, fuel information, etc.

ABS/SRS: Problems that occur in the ABS and SRS can be found using this scanner. Once fixed, you can reset the ABS/SRS light.

Vehicle coverage

This transmission code reader supports all 1996 and newer models that are OBD2 compliant.

LAUNCH CRP123 offers 4 systems diagnosis.

Verdict

LAUNCH CRP123 transmission code reader is good at reading and explaining faults that occur in the transmission and other systems. Therefore, semi-professionals, professionals and DIYers should consider it.

Pros

  • 1-year warranty.
  • Updates are free for lifetime.
  • Can be connected to PC to print data.
  • Auto module search feature can help save time.

Cons

  • Hybrid cars are not supported.

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FIXD OBD2 Bluetooth transmission code reader

FIXD
FIXD OBD2 Bluetooth transmission code reader
4.14.1 / 5
FIXD OBD2 scan tool can read basic and transmission codes in 5 brands including Chrysler, Honda, Nissan, Ford, and Toyota.

Another amazing transmission code reader on the list that can not only read codes but perform maintenance and scheduling as well.

FIXD OBD2 scan tool can read basic and transmission codes in 5 brands including Chrysler, Honda, Nissan, Ford, and Toyota.

It’s a Bluetooth scanner that supports smartphone connectivity.

Features

Engine and transmission codes: Apart from reading basic engine codes, it can read transmission codes as well.

Oil change reminders: This transmission scan tool monitors the contents and notifies you when a replacement is needed. Moreover, it can also calculate the estimated cost of replacement.

DTC: To make things easier, this tool supports DTC functionality. Thanks to this feature, you will have no problem in understanding code as it shows an explanation of the code to help you understand the problem.

Vehicle coverage

FIXD covers all 1996 and newer gas powered vehicles but doesn’t support diesel and electric vehicles. Moreover, it supports both Android and iOS devices.

Verdict

FIXD OBD2 Bluetooth transmission code reader can be a good option if you’re serious about maintaining your vehicle.

Pros

  • Tracks the vehicle using the app.
  • Finds issues in the catalytic system.
  • Connects automatically to the phone if Bluetooth is on (has to be set in the first try).
  • Supports multiple connections.

Cons

  • Range of Bluetooth is short (works when you are in a close radius).

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BlueDriver Bluetooth Pro transmission scan tool

BlueDriver
BlueDriver Bluetooth Pro transmission scan tool
4.74.7 / 5
BlueDriver scan tool can perform many functionalities including transmission code reading.

The BlueDriver can perform many functionalities including transmission code reading. It can read sensors and identify problems by showing you live data on the screen. For example, problems in fuel pressure can cause leaks and affect the transmission system.

One more amazing thing about this transmission code scanner is that it can be operated via both Android and iOS devices using the BlueDriver app.

Features

Basic features: This transmission diagnostic tool covers many basic features including CEL, freeze frame, emission readiness, MIL, and smog test. Moreover, it can read/clear pending, permanent, and manufacturer specific codes.

Transmission codes: It can read a variety of transmission codes.

  • Engine oil temp: It can check engine oil temperature.
  • Fuel usage: It tells you about the amount of fuel your vehicle uses per trip.
  • Pressure: You can find out the atmospheric pressure or boost air pressure and absolute pressure if needed.

Live data: It shows short/long term trim data, RPMs and other transmission data such as speed, etc.

Advanced codes: BlueDriver can read and clear ABS/SRS codes in certain models including GM, Ford, Chrysler, Toyota, Nissan BMW, VW, and 2003+ Honda. 

It can find issues in the speed sensor, wheel sensor, anti-lock braking, and airbag system.

In addition, the scan tool can also tell you about ABS misfires and voltage codes since it supports mode 6.

Vehicle coverage

BlueDriver supports all 1996 and newer vehicles that are OBD2 compliant. Moreover, it supports all the major protocols as well.

BlueDriver is supported 24/7.

Verdict

BlueDriver Bluetooth Pro transmission scan tool is ideal for DIYers, enthusiasts, and beginners.

Pros

  • Supports 30 million verified fixes.
  • Free to update.
  • 1-year warranty.
  • Shows multiple PIDs in a graphical form.
  • Supports log file exporting.

Cons

  • Doesn’t support diesel vehicles.
  • Cannot read crank sensor data.

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OBDLink MX+
OBDLink MX+ Bluetooth transmission scan tool
4.64.6 / 5
This is one of the most well-known scan tools out there. Apart from transmission codes, it offers ABS/SRS codes as well.

This is one of the most well-known scan tools out there. Apart from transmission codes, OBDLink MX+ offers ABS/SRS codes as well.

OBDLink MX+ also has a simple to understand interface which makes it ideal for beginners.

Features

Engine and transmission codes: It can read and clear engine light codes. With this feature, you will be able to identify and solve a large number of engine-related problems. Moreover, it covers the transmission system as well.

ABS/SRS: If you own a GM, Ford, Nissan, Toyota, or Mazda model, you can check the ABS and SRS codes in your car.

Better software performance: OBDLink MX+ is designed to be quick and accurate. It’s best to use the tool with its own app as it offers a software speed boost of 300%.

Hack-proof: It is encrypted with a 128 bit encryption code that makes it hack proof.

DTC: With this feature, you can learn about a code. It shows detailed code information on the screen in a simple language.

Vehicle coverage

This transmission scanner supports all 1996 and newer cars and light trucks. However, it doesn’t support hybrid and electric cars. Furthermore, it also supports all the 5 major protocols and works on Windows and Android devices.

OBDLink MX+ has a great OEM support.

Verdict

Beginners and DIYers can turn to this OBDLink MX+ Bluetooth transmission scan tool and get rid of small issues that arise in the car’s engine and AT system.

Pros

  • 3-year warranty and 90 days money-back guarantee
  • Firmware updates.
  • 2x faster than average scanners.
  • Doesn’t overheat after hours of use.
  • Goes to sleep after 2 hours to save battery.

Cons

  • Does not have USB interface.
  • Several functions not supported for Honda.

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FOXWELL NT510 Elite transmission scanner

FOXWELL NT510 Elite
FOXWELL NT510 Elite transmission scanner
4.34.3 / 5
FOXWELL NT510 Elite supports both OBD1 and OBD2 vehicles which is quite rare among transmission code readers.

This automotive tool supports both OBD1 and OBD2 vehicles which is quite rare among transmission code readers. FOXWELL NT510 Elite also offers amazing features such as ABS, SRS, battery registration, etc.

Features

ABS/SRS: FOXWELL NT510 can read and clear ABS and SRS related codes.

Transmission: You can find transmission related problems with this scanner. It can check the sensors, fuel systems for errors.

Oil reset: It will read oil light and reset it once you change the oil or resolve if there’s an issue.

SAS: This code reader can calibrate SAS and clear related fault codes.

TPMS: It shows the pressure in your tires on the go.

Battery system: The scanner supports battery registration.

DPF: DPF problem codes appear when there is soot in the exhaust. This scanner can read and tell you where and what the problem is. You can clear the DPF error after fixing the problem.

IMMO: This feature allows you to turn the engine on when the right key is used.

Note: IMMO feature is only supported by a few vehicles.

Vehicle coverage

It supports all 1996 and newer OBD2 cars including BMW. Moreover, it also covers OBD1 vehicles and a few Rolls Royce models.

FOXWELL NT510 Elite is an all-system scanner.

Verdict

FOXWELL NT510 Elite transmission scanner is the right choice for mechanics, experts and professionals who want to find and solve complex issues in the car.

Pros

  • 1-year warranty.
  • Allows you to rest electronic parking brakes.
  • Supports Bidirectional testing.
  • Find problems in the injector system.
  • Supports all 10 OBD2 modes.

Cons

  • Can be used in 5 cars only, at a single time.

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iCarsoft MBII transmission diagnostic scanner

iCarsoft MBII
iCarsoft MBII transmission diagnostic scanner
4.34.3 / 5
iCarsoft MBII is a professional transmission scanner as it offers many features. It can diagnose a variety of components and systems including ABS, SRS, AT, airmatic, and AC.

iCarsoft MBII is a professional transmission scanner as it offers many features. It can diagnose a variety of components and systems including ABS, SRS, AT, airmatic, and AC.

Features

Basic features: The scan tool can check and clear engine codes. Other features including I/M readiness, EVAP, and O2 test.

Transmission codes: This scanner offers an electronic transmission control test feature.

In modern cars, clutches and bands are actuated using hydraulics. It allows you to control each hydraulic using an electric solenoid.

However, it is not supported in all the brands.

ABS/SRS: The scanner can catch ABS faults that occur in the sensor or in the wiring. It will improve tire traction and improve balance.

On the other hand, it can also find issues in the airbag deployment system and make sure it works properly.

Oil light: You will be able to reset the oil light once you have changed the oil.

Vehicle coverage

This scan tool is for Mercedes Benz, Sprinter and a few other brands. It supports the models built in 2000 and later only.

It’s best to check the official website if your car is compatible or not. The company offers a handy feature that lets you search for your car.

Verdict

iCarsoft MBII transmission diagnostic scanner is for car owners who own a Mercedes or Sprinter.

Pros

  • Supports diesel vehicles.
  • Can program integrated transmission control module in Mercedes.
  • Displays real-time data (boost pressure, gas temp. etc).
  • Resets airmatic codes.
  • Supports adjustments for the instrument cluster, AC, and Parktronic.

Cons

  • Doesn’t work on these chassis ( chassis’s: 107 124 126 129 140 201 202 208 210).

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Autel MaxiAP AP200 transmission code reader

Autel MaxiAP AP200
Autel MaxiAP AP200 transmission code reader
4.24.2 / 5
Autel MaxiAP AP200 is the right fit for people who know their way around the engine and the transmission system.

This Bluetooth code reader is the right fit for people who know their way around the engine and the transmission system. Autel MaxiAP AP200 comes with an app of its own called MaxiAP 200 that offers plenty of advanced and basic features.

Features

ABS/SRS: It supports ABS/SRS codes making it possible to clear the codes after solving the problem.

Transmission codes: It can read transmission codes from the sensors and display them live.

Oil Reset: It can read and reset oil light.

EPB reset: The scan tool can find EPB related codes and help reset them. Moreover, it can activate/deactivate the brake system and allow you to set the brakes when you replace the discs or pads.

BMS reset: This will help you determine the battery’s health and register it when you perform a replacement.

SAS reset: It can store the steering angle position in the sensor EEPROM and help calibrate it as well.

TPMS reset: It finds out tire pressure in the vehicle.

IMMO: Helps program a key fob and control the keys.

DPF: This feature shows faults related to the degenerate filter particle system. It passes a code along with an explanation if something is wrong.

Vehicle coverage

This transmission diagnostic tool supports 1996 and later made American, European and Asian vehicles.

Autel MaxiAP AP200 offers full OBD2 functions.

Verdict

Autel MaxiAP AP200 transmission code reader is a good option for DIYers and semi-professionals.

Pros

  • 1-year warranty.
  • Updates are free for lifetime.
  • Supports VIN.
  • Free software for the first car you use it with (enables automatically when you bind the VCI for the first time).

Cons

  • To use it on other cars, you need to purchase it for $15.99 for Android /$21.99 for iOS.

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OBDeleven Pro transmission scan tool

OBDeleven PRO
OBDeleven Pro transmission scan tool
4.34.3 / 5
OBDeleven Pro works on Android phones and offers excellent features. It can read both simple and complex codes related to the transmission system, engine, ABS/SRS, etc.

OBDeleven Pro works on Android phones and offers excellent features. It can read both simple and complex codes related to the transmission system, engine, ABS/SRS, etc.

Features

ABS/SRS: The scan tool will read and clear ABS/SRS light once you have fixed the problem

Transmission codes: This scanner can read plenty of transmission codes including AC codes, multimedia, fuel related codes, etc.

Oil light: It can read oil light and help reset it once you have changed the oil.

Engine codes: Engine related codes can affect your car’s performance and cause long-term damage. With this scanner, you can read and solve engine codes.

It might be complex for some users to understand a code, but there are no such worries with this beauty as it offers explanations thanks to the built-in library.

Live data: It displays live data on the go. You can see how your engine and AT system is performing at any given time.

App: This device can be used with an app of its own called OBDeleven Pro app.

EPB: It can read and reset electronic parking brakes light.

Other features: Some other features it supports are DRL reset, BEM reset, and new battery registration.

Vehicle coverage

It supports all 1996 and newer Audi and VW models that are OBD2 supported. Plus, it also supports some 1991-1995 models.

Verdict

OBDeleven Pro transmission scan tool can be a good pick for professionals, enthusiasts, DIYers, and beginners who own a VW or Audi.

Pros

  • 2-year warranty.
  • Updates are free.
  • Supports VIN.
  • Use more than 500 features with the in-app buying.
  • Supports opening/closing of windows and adjusts car headlights.

Cons

  • Some app features are not free.

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Recommendation: Top 3 transmission scanners

Autel MaxiCOM MK808 is the best transmission code reader for us. This MK808 offers both basic and advanced features. Most important, it provides you information about your transmission system and other components.

The silver rank, ANCEL FX2000 can also be a good pick. This transmission scan tool supports all OBD1 and OBD2 vehicles made after 2005.

If this isn’t good enough, you can try the LAUNCH CRP123. It shows both engine and transmission codes for various models. It can be effective in keeping your vehicle in good condition.

FAQs

Should I drive when there is a bad transmission?

💡 Even though you can technically drive while having a bad transmission, we don’t recommend you to do so. A disaster could potentially happen in an unexpected occasion. Hence, you will need to fix any transmission issues as soon as possible.

How do I know if the transmission is being bad?

💡 There are some possible symptoms that you can notice if the transmission is getting bad:

  • Rough/delayed shifting
  • Leaking transmission fluid
  • Transmission slipping

How long can a transmission exist?

💡 Most systems nowadays begin to fail around 30,000 miles. Fortunately, many ways can help you extend your vehicle’s transmission up to 300,000 miles.

Bottom line

These were the 10 best transmission code readers on the market that you can choose from. Make sure to pick one that is compatible with your car and offers all the features that you want.

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