- It has recently come to our attention that ALLDATA
Mobile will be unable to connect to a vehicle using an OBDII
connection device after upgrading to iOS 11. If you plan to
continue using the OBDII vehicle connection, we recommend waiting
to upgrade to iOS 11 for the time being. We are currently working
to provide a permanent solution as soon as possible.
The OBDLink MX device…
has not completed the startup cycle.
is already connected to another tablet.
is not a low energy model. (Low energy model is only
available from ALLDATA and has an ALLDATA logo on
is not in low energy mode. (if the button on the front is
pressed, the device will switch to full power mode.
Unplug and plug the device back in, without pressing the
button, to return to low energy mode).
was not selected from the settings menu during first time
is not working properly.
has an outdated version of ALLDATA Mobile installed.
has weak or no internet connection.
Bluetooth is not working properly.
OBDII port is not working properly.
engine is not running. (certain vehicles only).
Turn the vehicle off.
Unplug the OBDLink MX.
Close the ALLDATA Mobile app.
Double-press the Home button to
reveal all of the apps that are running.
If the ALLDATA Mobile app is not showing, swipe to
the left until it is visible.
Drag the app to the top of the screen to close it.
Press the iPad’s Home button to return
to the Home Screen.
Verify that the most current version of the ALLDATA Mobile
app is installed and updated as required.
HERE to learn how to find the ALLDATA Mobile version
Reset the tablet’s Bluetooth connection:
From the iPad’s Home screen, go
to Settings >>
If Bluetooth is on, tap the toggle
button to disable it.
Tap the toggle button to enable
Reset the connection device:
Plug the OBDLink MX in to the vehicle’s OBDII port.
Wait for the device to start up.
Power light will be solid green.
Hold down the pairing button for approximately 15 seconds
All lights will flash briefly
Connect to the vehicle by using the directions found HERE.
If the OBDLink MX will not connect, verify the connection
device works on a different vehicle.
If the connection is successful…
The device is working properly. Retry the connection on the
If the connection fails a second time, there may be a problem
with the vehicle’s OBDII connector, vehicle troubleshooting
should be completed before attempting connection again.
If the connection is unsuccessful…
Please contact the device manufacturer for further
troubleshooting by clicking HERE.