• OBDKey Fault Code Reader 1
  • OBDKey Fault Code Reader 2
  • OBDKey Fault Code Reader 3
  • OBDKey Fault Code Reader 4

OBDKey Fault Code Reader

OBDKey Fault Code Reader is a fault code reading, lookup and clearing application for Android that allows you to access your car's control units (ECUs) to get any fault codes.
Generic and manufacturer specific codes may be read, explained and reset from the following:


* All OBDII compliant vehicles (US from 1996, petrol from 2001, diesel from 2004)
* Pre
- OBDII Ford (including some Mazda) using J1850 PWM / Ford SCP
* CAN based Ford (including Mazda) using CAN based Ford SCP
* Pre
- OBDII GM (including Vauxhall / Opel / Saab)
* VW Audi Group (VAG) (including Seat / Skoda) using KW1281 or KWP2000
* Fiat / Alfa Romeo using KWP2000

Engine only, except for VAG which may be used via KW1281 to read engines, airbags, instrument clusters etc.

Please note this will only work with OBDKey hardware.

The application is sophisticated and powerful yet simple to use, enabling fast and easy access to a vehicle’s EOBD, pre OBD and manufacturer specific diagnostic codes. The app enables the cause of the illuminated engine check light (MIL) to be established.

You will be able to read clear, concise DTC definitions generic to all EOBD compliant vehicles on screen from the built in look up code base, which also includes many hundreds of vehicle specific codes too.

OBDKey is a CAN enabled tool and with this app retrieves generic P0, P2 and P3 and U0 codes for engine emissions and also picks up manufacturer specific P1, P3 and U1 codes.

With a single screen tap, the OBDKey Fault Code Reader app can turns off the MIL light, clear codes and reset monitors.

OBDKey Fault Code Reader is available for Android users and OBDKey Bluetooth unit owners only.

Features include fully automatic Bluetooth connection once pairing has been established, user fault code look up, easy navigation using menus, landscape and portrait modes both supported, HDPI, MDPI and LDPI screen options, works with larger “tablet” devices. English only at present.

A built-in data library with a user lookup function is also included.

OBDKey updateable via web-based downloads over the Bluetooth connection.

Data acquired from the vehicle(s) may be exported via email to any address of your choosing. OBDKey is available from http://www.obdkey.com

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Reviews (18)

Spe. T. Oct 27, 2019     

Do Not Use - Unmaintained App from 2011 - Totally Worthless - Doesn't even work with its own OBDII scanner!

Don. P. Dec 12, 2021     

Outdated, doesn't work

A. G. u. Jul 31, 2017     

Great hardware, however the moblie app could be a bit more user friendly just seems a bit dull🙄🙄 however the fault code reader app works flawlessly though 👍

Jac. F. Feb 8, 2016     

Dont understand why people are looking into/wanting this app if torque is so much better....? I have both but also bought the right adapter so do your research before crying a river!

Ric. W. Jun 15, 2014     

Doesnt work unless you buy their scanner.

A. G. u. Aug 11, 2012     

Doesn't work for me either. Seems they want you to use their over priced adaptor

A. G. u. Aug 27, 2012     

Will not connect to my adapter, they want to scam you into buying theirs.

A. G. u. Nov 24, 2011     

Does not connect to my adapter, looks like they want you to buy their own overpriced kit, torque is much better for that reason.

A. G. u. Nov 27, 2011     

Great product! Please make sure you are using kbm systems obdkey hardware before rating down, as this software is hardware specific

Sim. N. Oct 18, 2013     

2 years after buying their adaptor had it replaced FOC when having problems

A. G. u. Nov 14, 2011     

It does not work with my odb2

A. G. u. Oct 30, 2012     

works for me i use it at my job all the time as a professional mechanic

RJ. M. Dec 27, 2013     

Bad. Waste of time.

A. G. u. Feb 11, 2012     

Couldnt find anyy bluetooth device.. When other apps can find it

A. G. u. Apr 3, 2012     

This is the worst app ever made f this f shi......

A. G. u. Jun 12, 2012     

Broken. OBD device is recognised by phone but not by app.

Lai. K. Aug 23, 2013     

Does not work with odb mini adaptor.

ZAC. S. Apr 29, 2014     

Couldn't find OBD2 plug