What is OBDII and what it means for your car?

What is OBD?

On-board diagnostics (OBD) refers to a vehicle’s self-diagnostic and reporting capability. All the data from a car is stored in the car’s Engine Control Module (ECM) and can be read through its OBD port. The OBD port is located near the driver’s seat & there’s no need to open your car’s bonnet. Inexpensive Bluetooth scanners, available on any e-commerce websites, can be used to read this data. If you want to know the location of the port in your car, just comment below and we’ll show you where your port is.


Why is this data useful?

We all want better fuel economies for our cars, right? Using these scanners, we can get an accurate picture of our car’s fuel economy, how much is it, what are the things reducing it etc etc. Not only this, if you car’s check engine light comes on, you will know exactly what the problem is and can ensure proper service from the mechanic.

Fuel economy sample chart

How can I use this?

All you need to do is get a scanner and download the CaRPM app. It shows you how your car is doing in real time, if it has has faults that could lead to breakdowns and how its health is varying per trip. You can buy a scanner either from eBay, Amazon or just comment here and we’ll ship one to you. Download the CaRPM app here.

CaRPM home screen

Share this with your fellow drivers and make your driving experience a richer one.

30 thoughts on “What is OBDII and what it means for your car?

  1. Tapan Mehta

    hi there
    I have Tata Indigo CS TDI 2008 model. will your device work with my car and also can you please give me the exact link of your product page on ebay because there are a lot of listings having the same pictures.


    1. carpmweb

      Hi Tapan,

      Thanks for your question. Unfortunately, most car manufactured before 2010 aren’t OBDII compliant. So, there’s high chance that our app won’t work with your car. If you still wish to try, or use it in someone else’s car, then do write to us at fix@carpm.in to buy a scanner.

      Hope this helps.
      Team CaRPM


  2. Nitin

    I own Hyundai Xcent 2015 Model. Could you please let me know the location of OBD port.? What is the approximate cost of OBD device?



  3. Vijay

    Will it work with Renault Koleos 2012 model?
    Which OBD2 scanner work well with my card and CaRPM app?
    What additional info I would get which is already not available on the dashboard?


    1. carpmweb

      Hi Vijay,

      Yes, it’ll work with Renault Koleos. You can purchase our OBD scanner from here- http://www.amazon.in/dp/B072BWN4MG.

      Your dashboard will only tell you the speed and RPM. If any error occurs, you will see a light but the car will not tell you what the problem is. However, if you use CaRPM, we will tell you the whole problem, along with its root cause and give you tips on how to drive in a car-friendlier manner too!

      Look forward to having you on-board.


  4. Nirmal Kumar

    I have a Wagon R Lxi Duo (Petrol + LPG) 2010 model. Is this device compatible with my car and if yes where do I find the OBD port?


  5. Vijay

    Can you give an example what kind of diagnostic? Sorry for bothering you again but somehow still not clear with the value add.


  6. Denson Davis

    i Have a imported Jeep Wrangler JK 2009 and a chevrolet cruze 2011
    can i use it on both if i buy it

    and whats the diffrence between 3 models


    1. carpmweb

      Hi Denson,

      It can be used on both cars. Different subscriptions are for different kind of users.

      Personal- Lets you scan and delete DTCs from 2 cars. You can also read live data, run a smog test and get a PDF with descriptions of the DTCs
      Premium- Same as personal but there’s no limit on the number of cars
      Lifetime- Same as Premium, but there’s a one time payment instead of annual subscription
      Business- These features, and also special functions such as injector coding, throttle reset, service reset etc.

      You can find full details on the “Buy Subscription” screen of the app.


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