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Thursday , 30 March 2017
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Home » Misc Blog » Automobiles » Check Engine Light Diagnostic with iPhone or Android OBDII – Cable or Bluetooth

Check Engine Light Diagnostic with iPhone or Android OBDII – Cable or Bluetooth

Ever want to know why your check engine light came on and don’t have time to go to the mechanic?  Now you can do it wirelessly and relatively inexpensive with your Android or iPhone!

The ELM 327

ELM 327: Low Cost Solution with various apps available for Android and iOS!

The ELM327 is a multi-function OBDII Interpreter IC. It provides an RS232 to OBDII data bridge for systems that use the ISO 15765-4 CAN, SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 and SAE J1939 protocols. In addition, two generic CAN protocols are provided which can be customized by the user for use with audio data busses, special OBD implementations, etc.

It would seem that the previous version (1.3a) offered all that anyone could need in an OBD interpreter, several new features are still included in the new ELM327 v1.4b chip. The data sheet explains all of these features in detail, but here’s a quick listing of some of the changes:

  • Power Control provides a very low power standby mode
  • More J1939 support
  • A non-volatile memory location for storing user data
  • An option to turn off the CAN silent monitoring for bench testing, or when connecting to a dedicated CAN port
  • CAN extended addressing support for experimenting with special data formats
  • The ISO/KWP bus initializations may now be performed without having to send a request
  • A 4800 baud ISO option, to compliment the 10400 and 9600 rates
  • An SS command for searching sequentially through the protocols
  • A TA command to change the Tester Address without using a PP
  • The ability to quickly restore the factory calibration for the voltage reading circuit

In addition, there have been several improvements made ‘under the hood’, which will help with the overall reliabilty. Download either the ‘QuickSheet’ (a 7 page summary), or the full (76 page) Data Sheet for a more complete description of what it is now capable of. We are often asked about the differences between versions of the ELM327, as it has been updated several times. The AT Commands file provides a summary of these.

Get ELM 327 Here

This lists all iOS/Android car OBD apps that are compatible with the ELM327 WIFI scanner.

Note: This list is updated often due to the nature of apps in the Google Play store and Apple Store.

Free Android Apps

  • ScanMaster Lite
  • Torque Lite (OBD2 & Car)
  • OBD2-ELM327 Car Diagnostics
  • OBD Dashboard (Free)
  • Carista OBD2
  • ScanMyOpel Lite
  • OBDLink
  • hobDrive Demo
  • OBD Car Doctor
  • EcoShifter OBD2 Car
  • Scanator Android (in-app purchases)
  • Efficiency (free)
  • VAG DTC Fault Memory erase
  • BMWhat Lite
Paid Android Apps

  • DashCommand
  • Torque Pro
  • ScanMyOpel
  • hobDrive
  • OBD Car Doctor Pro
  • OBD DROIDSCAN PRO
  • TouchScan (OBD Diagnostics)
  • Efficiency Pro
  • BMWhat (Only BMW)
Free iOs Apps

  • OBD Auto Doctor
  • EOBD Facile
Paid iOs Apps

  • DashCommand
  • EngineLink
  • REV
  • NovaScan – The OBD Total Solution
  • BMWhat (Only BMW)
  • OBD2 Scanner
  • iPad Optimized Apps
  • DashCommand
  • iCanOBD2 (Only VW, Audi, Seat, Skoda)
  • Engine Link HD

Alternate Solutions for Android and iOS

OBDLink Bluetooth Scan Tool
A higher cost solution, however is advanced and offers a nice graphical interface. OBDLink Bluetooth features a Class 1 Bluetooth transmitter for maximum range, and Plug and Play connectivity with any Android, iPhone, iPad, iPod, Symbian, Blackberry, or laptop. OBDLink to be compatible with more vehicles and dependably communicate faster! Highly recommend!

Get Scantool Here

Alternate Solutions for Android and iOS:

Kiwi 2 Bluetooth
Android, Symbian, Linux, N9, PC OBDII to smartphone interface. Check Engine Diagnostics, Real-time Gauges, Fuel Efficiency and MPG, Engine Sensors, Customizable Dashboard, Real-time Dyno, Data Logging, GPS Track Mapping, Skid Pad, Video Recording, Data Overlay and more. Works with 1996 and later vehicles. Compatible with many apps. Plug and play and installs in seconds.

Kiwi 2 Wifi

iPhone, iPad, iPod Touch OBDII to smartphone interface. Check Engine Diagnostics, Real-time Gauges, Fuel Efficiency and MPG, Engine Sensors, Customizable Dashboard, Real-time Dyno, Data Logging, GPS Track Mapping, Skid Pad, Video Recording, Data Overlay and more. Works with 1996 and later vehicles. Compatible with many apps. Plug and play and installs in seconds.

Features

  • Read / reset engine codes, Real-time Gauges, Data logging
  • Display real-time horsepower and torque
  • GPS track mapping and telemetry, visually analyze acceleration and braking on different race tracks, and improve your lap time.
  • Professional skidpad and inclinometer showing lateral and acceleration/braking Gs with min/max indicators.
  • Smog check ready your vehicle
  • Connect high performance aftermarket sensors including wideband air/fuel ratio, exhaust gas temperature, vacuum/boost, air intake temperature, fluid pressure and fluid temperature with the iMFD adapter
Get KIWI Wifi Here

Any other comments or pointers? Please leave in the comments section below:

Comments

comments

28 comments

  1. Great article.

  2. Thurman Cannonier

    Been looking for something like this; way cheaper than and actual OBDII reader

  3. Looks quite useful.

  4. So if I can check out the car stats via this app while I am driving, then I would exclaim – Awesome! Coincidentally I own a 1997 sedan, and I am having the feeling that it would work perfect with it. Thanks for bringing our attention to this!

  5. This is cool. Does it do check engine lights?

  6. Cool gadget! Wonder if it can clear a check engine light?

  7. I hear it doesn’t clear your check engine light though.

  8. Sucks though you can’t turn off the check engine light. Hope they come out with something that does.

  9. mireyamatheson

    This is a cool little app gadget!

  10. To reset your check engine, simply disconnect your battery, turn on the headlight switch for about five to ten minutes, and re-connect the battery. This is pretty simple, but will likely result in you losing your radio presets and perhaps some other small things like that.

    Most if not all scan tools have an option to clear or reset codes without the use of any tools or touching the battery. Consult your tool’s manual for information on how to do it with your particular model.

  11. You can also unplug your battery to clear your check engine.

  12. So this does clear check engine lights! This is great!

  13. Heya! I just wanted to ask if anyone has ever have any problems with this? I can seem to get my bluetooth to connect. Also is there a windows 7 driver?

  14. So, can you pass smog now too? lol

  15. The make just about every app for the Droid

  16. what app works best for this?

  17. As a car and phone enthusiast, this is great because I have my car and phone with me all the time!

  18. Can you program your engine with this?

  19. Nice that the first item is cross phone os compatible

  20. Thnx for posting this information. I’ve been looking around for something that would do this instead of going to autozone everytime.

  21. I recommend OBD car doctor, and Torque for droid to work with ELM 327

  22. The elm is quite cheap on Amazon

  23. Glad this (ELM) also works for iphone. I was looking for something like this and this is one of the few.

  24. This worked like a charm to clear my check engine light!

  25. I got my ELM 327 today and wow! The apps are awesome! Who would have ever known? Screw having to go to the mechanic for a report, lol.

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