TL V6-3206cc 3.2L SOHC MFI (1998)
Fuel Gauge: Description and Operation
The Fuel Gauge has two intersecting coils wound around a permanent magnet rotor. Voltage applied to the coils, through fuse 1, generates a magnetic
field. The magnetic field controlled by the ECT sending unit, causes the rotor to rotate and the gauge needle to move. As the resistance in the sending
unit varies, current through the gauge coils changes, pulling the gauge needle toward the coil with the stronger magnetic field. The fuel gauge works the
same way.
The resistance of the sending unit for the fuel gauge varies from about 3.5-5 ohms at full, to about 105-108 ohms at empty. When you turn the ignition
switch to LOCK (0), the gauge remains at the last reading until you turn the ignition switch to ON (II) or START (III) again.
