Fuel Sending Unit Resistance Test
- Turn ignition off. Remove fuel sending unit from tank. Connect ohmmeter to appropriate sending unit terminals. See FUEL SENDING UNIT HARNESS CONNECTOR table. Sending unit connector terminals are opposite position of harness connector terminals. See Figure to identify harness connector terminals.
- Move sender arm and ensure resistance is within specifications. See FUEL SENDING UNIT RESISTANCE SPECIFICATIONS table. After a short delay, gauge pointer should move when sender is connected and float arm is moved.
FUEL SENDING UNIT RESISTANCE SPECIFICATIONS
| Float Position | Ohms | |
|---|---|---|
| Full | ||
| Land Cruiser | 15-19 | |
| Supra | 3-5 | |
| Camry, Corolla, Cressida, Previa & 4Runner | 3 | |
| All Others | 2-4 | |
| Half | ||
| 4Runner | 32-33 | |
| Empty | ||
| Land Cruiser | 113-127 | |
| Camry, Corolla, Cressida, Previa & 4Runner | 110 | |
| All Others | 102-118 | |