DTC P0180 - Tank Fuel Temperature (TFT) Sensor
- Check Power Supply - Turn ignition off. Disconnect TFT sensor harness connector. See Fig 1. Turn ignition on. Using a voltmeter, measure voltage between TFT harness connector terminal No. 1 (Light Green/Red wire) and ground. If measured voltage is about 5 volts, go to next step. If measured voltage is not about 5 volts, repair fault in Light Green/Red wire.
- Check Ground Circuit - Using an ohmmeter, check continuity between TFT harness connector terminal No. 2 (Black wire) and ground. If continuity exists, go to next step. If no continuity exists, repair fault in Black wire.
- Check Component - Leave sensor disconnected. Measure resistance between TFT harness connector terminal No. 1 (Light Green/Red wire) and No. 2 (Black wire). See TANK FUEL TEMPERATURE (TFT) SENSOR RESISTANCE table. If resistance is not as specified, replace sensor. If resistance is as specified, check ECM connector for damage or corrosion. Reconnect harness cnnectors in circuit and perform FINAL CHECK , see appropriate section in this article.
TANK FUEL TEMPERATURE (TFT) SENSOR RESISTANCE
| Temperature - °F (°C) | Ohms |
|---|---|
| 68 (20) | 2300-2700 |
| 122 (50) | 790-900 |