Hey! Today we are in Volvo and we are going to check this little scanner. This
is JDiag JD-101. It's a basic basic OBD2 scanner from JDiag and we are going to
check how it works in Volvo. I already disconnected the boost pressure
sensor under the hood. For few seconds but that's enough to generate the fault
code and we are going to check if I can read it and clear it.
The device is hand-held, there's no battery inside, there's only USB port at
the bottom for software updates and when you connect it to OBD port in your car
it will turn on automatically. So let's do it.
OK, the screen is black and white.
And we are in the main menu. Over here we
can go straight to the diagnostic features, we can check the battery.
To be honest it only checks the battery voltage on the obd2 port. We can check
DTC codes. You don't have to scan the car for code if you remember the code
number you can input it over here to check what it's all about.
We have SETUP,
and we have the ABOUT position in the menu.
So let's go from bottom to the top.
The first section is the ABOUT section. You have your firmware and your
hardware version over here. If you're looking for those information to make an
update for your device this is what you're looking for.
Also the serial number if you need to if you need to report it for some reason.
So let's go back and let's go to SETUP.
Here you can select language. We have english,
espanol, francais, deutsch, italiano... I believe that's ruski.
OK, that's all. Only those six languages. Units of measure: metric and english...
English - those will be miles...
You can adjust the display
contrast if you have some difficulties seeing what's on the display. There's a
self-test for the tool so you can check the display.
And you have update mode
which I believe you need to enter to update the device.
OK, let's go up,
DTC lookup. Over here you can select specific manufacturer if you
are looking for a description for a manufacturer specific code. But we can go
straight up, this scrolls down, go to OTHER, and over here you can input code number.
So let's check this. OK, and we have the description for each code. That's useful
if you know what the code is or you have a car where you can access
those codes for example from the instrument cluster like in Opel,
Vauxhall, Holden cars.
Battery tester shows the voltage and it says that the battery
life is good and those tests are for reference only, so now we are
going to the Diagnostics section which is the most important thing and this is
what you are waiting for.
As you can see it supports a number of transmission
protocols, it detects automatically which of those protocols your car is using and
over here we can check the codes, clear them, check some live data, check freeze
frame from the moment when the code appeared, check the readiness monitors and
some vehicle information. So let's try read the codes and let's check if I can
find the code that I produced with the disconnected sensor. "Stored codes"...
There's nothing here... "Pending codes"...
Yes, there is P0238.
"turbocharger supercharged sensor circuit high". And that's correct,
I had the sensor disconnected so this code is correct.
And in permanent codes I didn't have anything because the sensor is connected
at the moment. Let's try to erase the code. I believe that I need to shut down
the engine and just leave the ignition on. So let's do it right now.
Ignition on, erase codes...
"are you sure want to erase"... Yes, I'm sure.
"Freeze data will be lost. Are you sure"... Yes, I'm sure.
Erase, done.
OK, let's turn the engine back on.
And now let's try to read
pending codes. Nothing here. So this device can easily read and clear codes
from the ECU. OK, now let's check some live data and as you can see it checks
what PIDs are supported by the ECU and this strongly depends on the car.
In other cars like in my BMW I have a lot of PIDs. Over here, in this
Volvo (this is 2005 Volvo with 2.0 diesel engine) we have only so much PIDs
supported. So we have the voltage, count of the DTCs (there's zero, nothing
right now is pending in the ECU), we have the
current load, engine coolant temperature (45 degrees Celsius), we have the mass
air pressure, we have the engine RPMs, vehicle speed sensor, and intake air
temperature, mass air flow (in grams per second) and supported OBD
standard, distance traveled with the malfunction indicator (that's 0), and
fuel rail pressure in kPa. And that's all. The last item takes
us back to the top, and the first item can take us all the way down, to
the end of the list - that's useful. And as you can see the refresh rate is quite
good. I will say that maybe 3 maybe 4 times per second we have refreshed
data over here. And we cannot check only one, we have to look at all those 5...
All those 6 parameters at one time but you can highlight the interesting one if
you want to focus on one of the parameters. So let's check when I rev the
engine how fast the RPMs will change over here.
And of course we have the RPMs highlighted but all of the other
parameters are changing too. This is just to keep you focused on the thing
that you are observing at the moment. Let's check readiness monitors.
And we can see over here which tests are uncompleted, which are not available
and so on. Of course those tests will be completed once I moved my car. Of
course if the if the tested system is working correctly.
And in vehicle info...
I need to have the engine off with the ignition on, so let's do it right now.
Let's check if I can read the vehicle VIN - yes.
Calibration IDs - yes.
And calibration verification number - not supported in this car. Oh well. OK, but
those first two work really fast. That's almost instant information.
OK, is there anything else on the list? No just those six positions.
OK, so we have the
device covered and I have to say that this is a very nice device.
Most of those basic scanners are using the same display, most likely the same
hardware inside and the only difference between them is the software that the
company developed for your car. And over here I have nothing to complain
about because the software works very stable and as you can see it works really fast.
It's really nice to have one of those devices in your glove box or in your
trunk just in case you have some errors when you are on the
road or you have to check some parameters of your engine if you are not sure
if everything is OK.
Here we have coolant temperature but in other cars like BMWs
you don't have that and if you are not sure if your
engine is warming up correctly (maybe your thermostat is faulty?) you can check
this using this device. Just observe the coolant temperature if it
reaches the 90 degrees or whatever is the correct value for your engine and
how fast it reaches that temperature. This device can easily help you diagnose such
problems. OK, that was just a quick review of this JDiag scanner. If you
have any questions leave them in comment below this video.
Also in the description below video we will have a link for the device if you
want to buy one of those. Give me a thumbs up if you liked my review and
thank you for watching. See you soon.