Fuel Gauge Sending Unit

Using an ohmmeter, check sending unit resistance with changes in float position. With float in FULL (up) position, resistance should read 2-3 ohms. With float in EMPTY (down) position resistance should read 7-110 ohms. With float position in 1/2 (mid) position resistance should read 4-32.5 ohms.

Fig 1: Fuel Gauge Continuity Check Measure continuity to confirm 55 ohm resistance.