an additional Bus expansion port for the Smarty Touch.
does it do ?
installed to Smarty Touch's under - dash controller, i t allows
t he communicat ion with the ECM over two distinct CAN Bus
channels at the same time . The usual OBD II plug / bus and
a secondary under hood service bus used by Cummins for the
communication with external modules such as the VGT turbo,
Oxygen sensors , etc .
gauge feature allows you to choose from four different dashboards,
each configurable with five different gauge layouts and a
customizable display background. With user configurable audible
or visual alarms you can rest easy knowing that Smarty Touch
will alert you when your selected parameters reach too high
or too low of a value.
is it needed?
Smarty Touch uses the under hood service bus for real time
On The Fly (OTF) tuning for all years from 1998.5 to present
2) The Smarty Touch uses the under hood service bus to unlock
the 2013+ ECM's.
the development of the Smarty Touch we could not anticipate
that we would have needed a third CAN Bus port to communicate
with an ECM. When the 2013+ trucks hit the market it became
clear that to unlock and communicate with those ECM's a whole
new strategy was needed.
of the ComMod.
the ComMod on the under dash controller, simply pull the OBD
II cable from the controller, slide the ComMod onto the controller,
plug the OBD II cable back into the ComMod. Route the “Underhood
Bus" cable to it's plug (located under the intake horn
and above the ECM). Plug the other end of the cable into the
ComMod. Done! Of course, the Smarty Touch then needs an software
update on it's SD card. Now we are ready! (Any Smarty Touch
can be upgraded with the ComMod. Update the software on the
SD card, that's all)
The Fly with the Smarty Touch
First things first, upon installation of the Smarty touch,
the controller and the ComMod you need to program the ECM
one time. During this first download the ECM is unlocked (Years
2013+), the Smarty Touch becomes VIN# locked to the vehicle
and a base software is installed. After this first download
it is then possible to use the OTF.
The OTF allows you to change -real time- several parameters.
At this moment in time they are:
1) Duration, five levels.
2) Timing, three levels.
3) Rail Pressure, three levels.
4) VGT, three settings.
It is possible to change any of the above, all, or any combination
This allows you to find out in a very short time which ones
are the settings that suit your driving habits best. You can
choose to select if the OTF has to be send to the ECM only
once or at every key on.
This may sound confusing but it is there for a very good reason.
one. Utilizing the OTF you find your preferred combination
of parameters. You then proceed to program the ECM with the
“traditional" download using those pre-determined
settings. Let's say you have selected the +30HP duration.
At some point you need more power instantly, yet only for
a short time. You go into the OTF menu and select the +xxx
Duration, and also select the “send only once"
option. A second later you have the new power setting in your
ECM which will stay there until the key is turned into the
Off position or until you change the OTF again.
Two. You have downloaded your preferred combination of parameters
to the ECM using the “traditional" programming.
At some point you want to change these settings.
Let's say only for a long road trip, towing heavy, when you
are needing more power than usual. You go into the OTF menu,
select the parameters you need and also select the “Send
at every key on" option. As the name says, every time
the engine is started the Smarty Touch will automatically
send the selected OTF parameters to the ECM. After the road
trip, you simply un-check the “Send at every key on"
option and you are back to your preferred combination of parameters.
the ECM with the ComMod.
becomes unlocked during the first “traditional"
software download. Our competitors need to change cables and
software's several times. Smarty Touch with the ComMod does
not require any special procedure. The unlocking process is
integrated seamlessly into the software download to the ECM.
It does not take any longer than a download without the unlock
procedure. Or, in other words, 4 minutes 30 seconds.
beware! The Smarty Touch will re-enable the ECM lock feature
once returned to stock software. Only once returned to stock
software and a successful re-lock of the ECM, will the Smarty
Touch unlock from the VIN# of the truck. The Smarty Touch
is then ready to work on the next vehicle!
NO EXCEPTIONS! We will NOT replace any VIN# locked units.