When configuring a device on your tracking system, you can encounter a situation in which the device does not appear to provide the CAN/OBD information constantly.

In this article, we will address the reason behind this behaviour.

A device currently installed that reads CAN/OBD data from a vehicle.

This is a normal behaviour. Since the ignition status is crucial for the CAN/OBD communication. Moreover, the ignition status is mandatory for CAN/OBD communication. Once the ignition is off, our device detects that there has been a cut-off in the CAN/OBD communication from the vehicle side. After that, the device starts stamping the CAN/OBD values with FFF error values such as 255 "FFF" or 65535 "FFFFF" values which are error values.

So far, we don't have a possibility yet to make the device remember the last valid obtained OBD parameter values from OBD. When the ignition status is restored to on, the CAN/OBD communication will be restored as well.