Fuel Gauge Sending Unit Test
- Place fuel gauge sending unit on test bench. Connect ohmmeter to fuel gauge sending unit terminals No. 1 and 2. See Fig 1 .
- As float is moved, resistance reading should change smoothly. See FUEL GAUGE SENDING UNIT RESISTANCE table. Connect ohmmeter to fuel gauge sending unit terminals No. 1 and 4. Resistance should be infinite. If resistance readings are not as specified, replace sending unit.
FUEL GAUGE SENDING UNIT RESISTANCE
| Sending Unit Position | Ohms |
|---|---|
| Empty | Infinite |
| 1/2 | 43.5-46.5 |
| Full | 16.2-17.8 |