Fuel Tank Sending Unit
Remove fuel tank sending unit. With float arm in specified position, check resistance across specified terminals of sending unit connector. See appropriate FUEL TANK SENDING UNIT RESISTANCE SPECIFICATIONS table. Replace sending unit if resistance is not as specified.
FUEL TANK SENDING UNIT RESISTANCE SPECIFICATIONS (FORESTER & IMPREZA)
| Float Position |
Ohms |
| Main Unit |
| Empty |
50-52 |
| 1/2 |
21-25 |
| Full |
0.5-2.5 |
| Sub-Unit |
| Empty |
42-44 |
| 1/2 |
20-24 |
| Full |
0.5-2.5 |
FUEL TANK SENDING UNIT RESISTANCE SPECIFICATIONS (LEGACY)
| Float Position |
Ohms |
| Main Unit |
| Empty |
53-55 |
| 1/2 |
19-23 |
| Full |
0.5-2.5 |
| Sub-Unit |
| Empty |
40-42 |
| 1/2 |
24-28 |
| Full |
0.5-2.5 |