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Actros 2640: Stan, I would like help with Mercedes Actros…

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Hi Stan, I would like...
Hi Stan, I would like help with Mercedes Actros 3848 and MB Actros 2640 locating analog wire for fuel sensor to read voltage reading.
Should I expect positive or negative voltage reading? We are working on Mercedes Actros 3848 and 2640. Thank you.
Submitted: 2 years ago.Category: Mercedes
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Customer reply replied 2 years ago
Can I please have a wiring diagram for fuel tank sensor? (fuel tank sending unit to fuel gauge for fuel level reading).
Wiring diagram for Mercedes Actros 2640 year2009 OR Mercedes Actros 3848 year2008. Any other alternative could be doable too. Thank you.
Answered in 10 days by:
7/4/2015
Mercedes Mechanic: Stan, Mercedes Technician replied 2 years ago
Stan
Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3,526
Experience: Technical support engineer
Verified
Hello,Sorry for the delayed reply, i did not have a chance to get online for a while.Here is the data i have on the fuel level sensor:Wiring diagram
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Mercedes Mechanic: Stan, Mercedes Technician replied 2 years ago
Functional description:
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Mercedes Mechanic: Stan, Mercedes Technician replied 2 years ago
As you can see, the resistance of the fuel sender must change depending on fuel level.If the wires are interrupted, the HM (rear module) will cut the voltage supply to the sensor. So the voltage measurments have to be taken with sensor connected.
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Mercedes Mechanic: Stan, Mercedes Technician replied 2 years ago
Best regards,Stan
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