Ford TRANSIT CUSTOM Owner's Manual page 11

Introduction
If services are used (e.g. repair works,
service processes, warranty cases, quality
assurance), employees of the service
network (including manufacturers) are
able to read out this technical information
from the event and error data storage
modules using special diagnostic devices.
If required, you will receive further
information. After an error has been
corrected, these data are deleted from the
error storage module or they are constantly
overwritten.
When using the vehicle, situations may
occur in which these technical data related
to other information (accident report,
damages on the vehicle, witness
statements etc.) may be associated with
a specific person - possibly, with the
assistance of an expert.
Additional functions contractually agreed
upon with the client (e.g. vehicle location
in emergency cases) allow the
transmission of particular vehicle data
from the vehicle.
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Transit Custom (TTF) Vehicles Built From: 14-01-2013