what's up everyone and welcome back to
the channel in today's video i'm going
to show you how to reset the ecu the tcm
and all control modules in your car or
truck
but before i start the video i want to
mention that some vehicles the the that
has more complicated systems
and you're not supposed to disconnect
the power from the battery
off of these systems they're they're
made designed to
work to have constantly uh power from
the battery
even when they replace the battery they
connect the new one in parallel
before disconnecting the old one so uh
research if you can disconnect the
battery and there should be no problem
for domestic vehicles
some important imported vehicles like
honda toyota and
um other simpler vehicles in in for lack
of better work and as you can see now i
have the
anti-theft light is on uh they call it
the pass lock
and the air bag light is on but just one
thing i want to mention quickly before
we start
that some of these systems are proactive
so if you
have a current problem and
um the system is actively scanning
itself
and the problem is not solved the light
will stay on
okay now all what you need is a jumper
cable
and you need to take both your battery
terminals off so
in my case i'm going to remove both the
negative and the positive but the
negative first
and then the now i remove the ground
first and then the positive is free
now i have to isolate the battery so i'm
gonna grab
just a regular piece of cardboard i'm
gonna
completely isolate the both
okay so now after isolating the battery
i'm gonna grab my jumper cable
and i will connect both terminals
together
positive to get to the negative just
like so
isolated from the battery now what this
does
it drains any residual charge from the
positive
circuits down to the drain when it's
disconnected from the battery
so it completely drains all the systems
in the vehicle which makes them
clear any faults and reset themselves
and then start from scratch all over
again okay now leave
it for about 10 to 15 minutes doesn't
really matter
so all the the the charge will just
drain completely
okay so it has been around 15 minutes
for me so i'm just gonna
put everything back together and
reconnect the battery positive
first and negative next okay now
everything that's put back together
now we want the vehicle to learn the new
values properly so there's a few things
i want to show you
that you can do to help the vehicle that
is using the control modules
to learn everything from scratch now
properly
so it can be saved and then the car
actually drives better okay now first
thing you want to do is you want to grab
your key and you want to cycle the key
with five seconds in between every time
so
turn the key on
give it about five seconds
turn back off cycle it again
and on the third time you can crank the
car and start it up
and as you can see here in my case my uh
pass lock the anti-theft light
has reset itself and now it's good to go
okay now you want to let the vehicle
warm up completely
and idle for about five minutes on its
own
so the idle can find its sweet spot and
it can relearn the idling values
for the rpms so you want to turn
everything off so
here i'm going to turn the screen on now
you want to just let it idle let it warm
up a little bit
idle for a good five minutes until it
finds its sweet spot
okay now it's been uh around five
minutes and the idle has went down and
settled
we can run it through the gears again
with five
seconds in between each gear so i'm
gonna go reverse
give it around five seconds to learn the
engagement
neutral
drive
third second
and first i'm gonna go the opposite way
the same
thing
you get the idea okay now that you have
done this process
uh you want to drive the vehicle slowly
or
not slowly like the way you like it to
drive because it's gonna learn
um the the shifting the rpms
for the shifting the way you drive some
vehicles have shifting adaptations some
vehicles do not
so you want to drive it just the way you
like it so you can
actually have the vehicle adapt to the
way you drive um after that
i mean you can just drive normally and
this should be uh
good to go okay now with that being said
i appreciate you watching i hope this is
helpful to you
again this is going to clear some folds
that are not present anymore if there's
an active problem like my airbag here
you can see
there is still a problem with my airbag
and it's going to remain the lights
going to remain on
until i actually fix that problem but
again this is only just to kind of
clear the values clear the folds and
start over
in all the control modules in your
vehicle so with that being said
i hope this is helpful to you if it is
please give it a big thumbs up
please subscribe down there and i'll
catch you in the next one peace