M45 V8-4.5L (VK45DE) (2006)
Fuel Level Sensor: Description and Operation
FUEL LEVEL SENSOR
Component Description
The fuel level sensor is mounted in the fuel level sensor unit.
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Fuel level sensor unit and fuel pump (1)
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Fuel pressure regulator (2)
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Fuel tank temperature sensor (3)
The sensor detects a fuel level in the fuel tank and transmits a signal to the "unified meter and A/C amp.". The "unified meter and A/C amp." sends the
fuel level sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of
the fuel mechanical float.
FUEL LEVEL SENSOR CIRCUIT
Component Description
The fuel level sensor is mounted in the fuel level sensor unit.
-
Fuel level sensor unit and fuel pump (1)
-
Fuel pressure regulator (2)
-
Fuel tank temperature sensor (3)
The sensor detects a fuel level in the fuel tank and transmits a signal to the "unified meter and A/C amp.". The "unified meter and A/C amp." sends the
fuel level sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of
the fuel mechanical float.