Connecting Teltonika GPS Tracker to Vehicle Fuel Gauge Sensor (Part I)

This video focuses on Hardware interfacing aspect for Software or Application interfacing see Part II.
For Part II : • Connect Teltonika GPS ...
Note: Sorry for some duplicated segments while merging the video,
In this video, I will gone a describe
1. The working of Vehicle Fuel gauge
a. Sending Unit in fuel tank
b. Display on cluster panel
2. How to Connect Teltonika GPS tracker with fuel gauge
Currently some Teltonika devices support the Bluetooth OBD2 connection but not all vehicles are OBD2 compliant and even if they do not support fuel Level sensor, But many Teltonika devices supports the Analog Input, and send analog data of voltage ranges between 0 - 15 v.
Now we need to connect Fuel Level output from Vehicle to the Analog input of the Teltonika Devices but only after proper identification of both.
The Teltonika Device model have is FMB122, along with the harness, and the wiring diagram is displayed on its back, as you can see the Red wire is +Vcc, Black is -ve Ground, Yellow is or ignition input,
FMB122 model supports 2 Analog inputs, AIN1 or gray wire Or AIN2 the white wire. Other models may have different color coding or wire Number so do it accordingly.
Vehicle fuel gauge works pretty much the same like a Potentiometer or voltage divider.
There is a Fixed resistance in the Fuel gauge, (mostly around 110 Ohm), and variable resistance inside the Fuel tank along with the fuel pump, that varies between 4 -110 Ohm, and both the resistances are connected in series as you can see
When the fuel tank is empty the Input volts will be equally divided among both of the resistances, as both Ohms will be equal as well
When the fuel tank is full, variable resistance (Sending Unit) will be the lowest (4 Ohm) and therefore the voltage drop across the variable resistor will also be the lowest around 700 MV.
If the fuel tank connector wire connector is disconnected, there will be no voltage drop across the Sending Unit (or VR) and we will get full input volts.
This will also help us out during various diagnostics.
With the Ignition On, Use multimeter to find +ve Wire of the Fuel gauge Connector, in my case it was the Center wire No. 2

[@laugh-loud866]

I love this

[@caydaruusmuxumed218]

thanks fary

[@caawiyegpscompany4001]

Good

[@peterpresent2859]

Can i also do what you recommend with FMB140? If yes, which wire input nr should I use. DIN2 or DIN3. Also, will the Unit then automarically pick up fuel level or is there a setting on the software where I need to enter my vehicle Min&Max values? Where are these values and must it be entered in Ohms or Volts?

[@AnjumSohail]

Yes you can do it with FMB140 as well via AIN.1 or AIN.2 only, The device will report the voltage levels (not Ohm valve) values only corresponding to the the level of fuel. The fuel Level calculation using above data, will need to be done on the tracking platform side, like on my Traccar server using Calculated attributes functions.

[@byronramon150]

Can you share calculated atribuyes for fuel

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@rakeshprabhuvj]

Could you please make the video for connecting Teltonika with fuel wires in Innova?

[@AnjumSohail]

I do'nt Own the Toyota Innova, but context described in the video are specific to some vehicle, you can simply trace fuel sensor wires from fuel gauge to the Cluster meter using Multi meter (continuity Testing ) and attach as described

[@cocoyete]

Excellent video, thanks. One question, what value in mV does the tracker send when ignition is off? I've had the issue with trackers that reports empty tank, is this the case with the teltonika?

[@AnjumSohail]

we are actually getting the fuel gauge reading, that is only available when ignition is turned on, when ignition is switch off we get almost 0 mv, but this anomaly need to be handled at application level to report last fuel tank value when ignition was switched off.

[@cocoyete]

@@AnjumSohail Thank you for you reply, this is what I had to do at a software level "when ignition is off = last value with ignition on". Thanks again!

[@AnjumSohail]

​@@cocoyetePlz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@PrimusAutoSolutions]

how do I connect to a Shenzhen BW09 since it has a fuel reading option

[@AnjumSohail]

As per datasheet I read, it doesn't have any wire analog input, although it has marketed as having fuel detection feature.

[@vangjelmihani9803]

Can you tell with what sofware you work?

[@AnjumSohail]

Backend has been drived from Traccar source plus front has been developed with .net core

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@falconentreprise7066]

Hi Can we also do the same with concox device (GT800, GT06N, X3) ?

[@AnjumSohail]

X3 only supports accessories supporting RS232 and TLL interface, which different and incompatible. GT06N has predefined IO's so it is not possible with it In GT800, purple color line of device extended port can be used for the same purpose. see the user manual www.iconcox.com/uploads/soft/170512/1-1f512152h8.pdf same is the case with meitrack brand devices

[@ECMTNNING]

Hello friend I did but with a Ruptela trace 5 and I have data the problema Now si the platform that I need to use to convert that data anolog.

[@AnjumSohail]

From Data conversion if you mean Gallons of fuel left, then it will be pure mathematical, lets suppose your fuel tank capacity is 45 ltrs, and fuel sensor reports 500 millivolts ( max=0.5 ) when tank is full and 6 Volts (min=6) when tank is Empty. (Example Reference range, varies with each vehicle). let X be the currently reported value the formula could : Amount Fuel Consumed in Liters = (X -0.5) / 6 * 45 or Amount of Fuel Left in Liters = 45 - { (X -0.5) / 6 * 45 }

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@maliqeulyzent3924]

Hi..how to use bluetooth to device and what app you use??

[@AnjumSohail]

I will upload Bluetooth use video for teltonika as well, for Whatsapp you can email me

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@tokobahagia8358]

Hello sir. What platform you use?

[@AnjumSohail]

Traccar

[@tokobahagia8358]

Does it work well ?

[@AnjumSohail]

Yes it do : Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@robfrost1]

Why would one want to track fuel using the tracker?

[@AnjumSohail]

To enable the tracking platforms to provide millage information as well under different conditions, Give you alerts, if millage decreases as Compare to routine

[@robfrost1]

@@AnjumSohail ok, thanks.

[@laugh-loud866]

Hi how do i configure the fuel

[@AnjumSohail]

I don't understand

[@AnjumSohail]

Oh, in teltonika devices, the analog input provides the information in voltage levels corresponding to the fuel level between 0 and 24v, Each vehicle is different, so you need to read the analog one input value when the fuel tank was empty and one value when the tank was full.(min&max) So on the tracking platforms side, you could drive the simple mathematical formula to provide fuel level in %Age using Analog Input value from Tracker

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@user-gc4ff2uf7v]

How much? .

[@AnjumSohail]

How much what ?

[@fabricemutempir1609]

You can translate for me in french please

[@AnjumSohail]

I will try

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE

[@Harshibilga4]

Ooe yrr phele tum English bolni sikh lo . Sari video mae 'ahh ahh ahh' . Agar nhi atte to hindi mai he bol lo .. 'ahh ahh ahh'

[@AnjumSohail]

Fluency is not good acknowledged but hindi/Urdu speaking audience prefer entertainment videos not the technical videos

[@AnjumSohail]

Plz see video in link for application side details : kzbin.info/www/bejne/hZSYoGZ5pd6WY8ksi=Emcd0-fsjnkDsyQE