Car Scanner ELM OBD2

Contains adsIn-app purchases
4.7
328K reviews
10M+
Downloads
Content rating
Everyone
Enjoy this app for free, plus many more free of ads and in-app purchases, with a Google Play Pass subscription. Learn more
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About this app

See what your car is doing in realtime, get OBD fault codes, car performance, sensor data and more!
Car Scanner is a vehicle / car performance / trip computer / diagnostics tool and scanner that uses an OBD II Wi-Fi or Bluetooth adapter to connect to your OBD2 engine management / ECU.
Car Scanner gives you a bunch of unique features:
1) Layout your own dashboard with the gauges and charts you want!
2) Add custom (extended PIDs) and get information, that was hidden from you by car manufacturer!
3) It can also show and reset a DTC fault code like a scantool. Car Scanner includes a huge database of DTC codes descriptions.
4) Car Scanner allows you to read free-frames (sensors state when DTC is saved).
5) Now with Mode 06 - you can get ECU self-monitoring test results. Helps you fix your car and helps keep repair costs down!
6) Check if your car is ready for emission tests.
7) Check all of the sensors at one screen
8) Car Scanner works with any vehicle that uses the OBD 2 standard (most vehicles built after 2000, but can work for vehicles as far back as 1996, check carscanner.info for more details).
9) Car Scanner includes a lot of connection profiles, that gives you some extra features for Toyota, Mitsubishi, GM, Opel, Vauxhal, Chevrolet, Nissan, Infinity, Renault, Hyundai, Kia, Mazda, Ford, Subaru, Dacia, Volkswagen, Skoda, Seat, Audi and others.
10) Car Scanner dashboard includes a HUD mode, that you can use to project data to your windshield.
11) Car Scanner provides a tool for very accurate acceleration measurments (0-60, 0-100, etc.)
12) Car Scanner can be used as a trip computer and can show you fuel consumption statistics!
13) Car Scanner supports coding (changing hidden settings of your car) for this cars:
- VAG group (Volkswagen, Audi, Skoda, Seat), built on the MQB, PQ26 and MLB-EVO platforms. Some exclusive functions you would find only in Car Scanner: Video in motion (VIM), Mirrorlink in motion (MIM), Traffic Jam Assist activation, Drive mode profiles editor (compatibility may depend on your car modules and firmware versions), Ambient lights configuration, etc.;
- Toyota/Lexus cars with CAN bus (almost all cars since 2008 up to nowadays);
- Some of Renault/Dacia (compatibility may depend on your car modules and firmware versions);
- Several service functions available for other cars.
14) And one more thing - Car Scanner provides the widest variety of features for FREE across the Play Market.

The app requires a Wi-Fi or Bluetooth or Bluetooth 4.0 (Bluetooth LE) OBD2 ELM327 compatible adapter (device) to work. ELM327 devices plugs into the diagnostics socket in the car and gives your phone access to car diagnostics.
Recommended adapters brands: OBDLink, Kiwi 3, V-Gate, Carista, LELink, Veepeak.
If you buy one of the cheap china OBD2 ELM327 adapters from ebay / amazon, then make sure it’s not marked as v.2.1. This adapters are supported, but they have lot’s of bugs.

PLEASE NOTE: Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something, that is not provided by your car.

Attention "bad" adapters! We faced the problem, that some adapters (often cheep Chinese clones), can’t connect to the smartphone or the car. Some of them can even make your car engine work unstable, often lost connection, increase time lag when reading data.
So, we recommend you to use genuine ELM327 or recommended adapter brands.
Updated on
Mar 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
316K reviews
Jennifer G
May 26, 2025
I'm a Single lady and independent person, but not very car savvy. I can do minor stuff, but I leave the big stuff to the professionals. this app is AMAZING! I have diagnosed a few things and told my mechanic exactly what was wrong. it was correct. This app is so easy to use! And free! I was intimidated at first, being almost completely clueless, but directions were clear and I get all the info I need. my fav part is where it links you to articles and videos relating to the repairs needed!
525 people found this review helpful
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Parmenas Mesesi
March 23, 2026
Awesome app. The best out of three apps that I've tried. Setting up the apps is the hardest part and trying to get them to connect. The process seems complicated but this was the only app that worked and was simple enough for me to connect to a cheap $5 obd2 WiFi scanner I got online. I use it everyday to keep track of my MPG and it actually was able to read all the check engine fault codes and clear them. No annoying ads on it too so that's nice 👍🏽
1 person found this review helpful
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S
March 13, 2026
Wants to run at startup while ignoring battery optimization and including ads, so it can run when it doesn't need to, drinking the battery and invading privacy. Nice update. I'll just stick with AndrOBD from now on, which is open and doesn't feel the need to be able to run on its own, something I've been noticing a LOT of apps adding lately.
4 people found this review helpful
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What’s new

Updated connection profiles database.
UI Improvements.
Bugs fixed.