Xterra XE 4WD V6-3.3L SC (VG33ER) (2002)
Fuel Gauge: Description and Operation
The fuel gauge indicates the approximate fuel level in the fuel tank. The reading on the gauge is based on the resistance of the fuel level sensor unit.
The fuel gauge is regulated by a variable ground signal supplied
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to combination meter terminal 47 for the fuel gauge
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through fuel level sensor unit terminal 2
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through fuel level sensor unit terminal 4
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through body grounds B106 and B116.