Ford TRANSIT 2017 Owner's Manual page 135

If the service engine soon
indicator is on or the bulb does
not work, you may need to have
your vehicle serviced. See On-Board
Diagnostics (OBD-II).
Your vehicle may not pass the I/M test if
the service engine soon indicator is on or
not working properly (bulb is burned out),
or if the OBD-II system has determined
that some of the emission control systems
have not been properly checked. In this
case, your vehicle is not ready for I/M
testing.
If the vehicle engine or transmission has
just been serviced or the battery has
recently run out of charge or been
replaced, the OBD-II system may indicate
that your vehicle is not ready for I/M
testing. To determine if the vehicle is ready
for I/M testing, switch the ignition on for 15
seconds without cranking the engine. If the
service engine soon indicator flashes on
and off eight times, it means that your
vehicle is not ready for I/M testing; if the
service engine soon indicator illuminates
and remains on, it means that your vehicle
is ready for I/M testing.
The OBD-II system monitors the emission
control system during normal driving. A
complete check may take several days.
If your vehicle is not ready for I/M testing,
you may need to:
• Drive on an expressway or highway for
a steady 15 minutes, followed by 20
minutes of stop-and-go driving with at
least four 30-second idle periods.
• Allow your vehicle to sit for at least
eight hours without starting the engine.
Then complete the above driving cycle.
The engine must warm up to its normal
operating temperature. Do not switch the
ignition off until the above driving cycle is
complete. If your vehicle is still not ready
for I/M testing, you will have to repeat the
above driving cycle.
Transit (TTH) Canada/United States of America, HK3J 19A321 AA enUSA, Edition date: 04/2016, First Printing
Fuel and Refueling
Diesel Exhaust System: Oxidation
Catalyst And Diesel Particulate
Filter System
Your vehicle is fitted with a diesel
particulate filter. The diesel particulate
filter is an inline filter in the exhaust system
that reduces carbon emissions by trapping
exhaust particles before they reach the
tailpipe. The diesel particulate filter looks
similar to a traditional exhaust catalyst,
except it is larger, and is part of the exhaust
system under the vehicle. The filter couples
to a diesel oxidation catalyst that reduces
the amount of harmful exhaust emitted
from the tailpipe. As soot gathers in the
system it begins to restrict the filter. The
soot that gathers inside the filter is cleaned
in two different ways, passive regeneration
and active regeneration. Both methods
occur automatically and require no actions
from the driver. During either one of these
regeneration methods, you may notice a
change in exhaust tone. At certain times,
the information display will display various
messages related to the diesel particulate
filter.
Diesel Particulate Filter Maintenance
Failure to carry out active or operator
commanded regeneration when advised
could result in a clogged diesel particulate
filter. If the diesel particulate filter fills
beyond the regeneration threshold, your
vehicle will disable the ability for active
and operator commanded regeneration.
This could result in irreversible damage to
the diesel particulate filter requiring
replacement that the Ford Warranty may
not cover. If your vehicle is not fitted with
operator commanded regeneration, check
with an authorized dealer for availability.
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