AN: Transmission Fluid Temperature (TFT) Sensor
Introduction
Introduction
1996 PCED OBDI | SECTION 18: Diesel Diagnosis — 7.3L DI Engine |
AN: Transmission Fluid Temperature (TFT) Sensor Introduction | AN: Pinpoint Tests |
You should enter this pinpoint test only when directed here.
This pinpoint test is intended to diagnose the following:
Note: Voltage values are calculated for VREF = 5.0 volts. The values may vary 15 percent due to sensor and VREF variations. Transmission fluid temperature must be a minimum of 10°C (50°F) before taking TFT sensor resistance measurements.
| °C | °F | Resistance (Ohms) |
|---|---|---|
| 40-20 | 40-4 | 967k-284k |
| 1.9-1 | 3-31 | 284k-100k |
| 0-20 | 32-58 | 100k-37k |
| 21-40 | 59-104 | 37k-16k |
| 41-70 | 105-158 | 16k-5k |
| 71-90 | 159-194 | 5k-2.7k |
| 91-110 | 195-230 | 2.7k-1.5k |
| 111-130 | 231-266 | 1.5k-0.8k |
| 131-150 | 267-302 | 0.8k-0.54k |
0712 = TFT sensor circuit low input.
0713 = TFT sensor circuit high input.
1711 = TFT sensor out of self test range.
| AN: Pinpoint Tests |