FWD

FUEL GAUGE UNIT INSPECTION

Float Height Of Fuel Gauge Unit:

To check, remove fuel gauge unit from fuel tank.

Float Height of Fuel Gauge Unit
Move float and measure the height at point F (highest) and point E (lowest) with float arm touching stopper.
Standard value:
Point F 43.1-48.1 mm (1.69-1.89 in.)
Point E 175.5-179.5 mm (6.9-7.06 in.)

Standard Resistance Of Fuel Gauge Unit:

Standard Resistance of Fuel Gauge Unit
1. Check that resistance value between the fuel gauge terminal and ground terminal is at standard value when fuel gauge unit float is at point F (highest) and point E (lowest).
Standard value:
Point F 3 +/- 2 ohms
Point E 110 +/- 7 ohms

2. Check that resistance value changes smoothly when float moves slowly between point F (highest) and point E (lowest).

Fuel Sensor Inspection:

FUEL SENSOR INSPECTION
Connect fuel gauge unit to battery via test light (12V-3.4W). Immerse in water. Condition good if light goes off when unit thermistor is in water and lights when unit is removed from water.
CAUTION:
After completing this test, wipe the unit dry and install it in the fuel tank.