Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
NOTE:
After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST procedures to ensure all electronic engine control systems are working properly and DTCs are no longer present.
An EOT sensor signal that is detected out of range (high or low) by PCM will cause PCM to ignore EOT sensor signal and assume an engine oil temperature of -4°F (-20°C) for starting, and a temperature of 212°F (100°C) for engine-running conditions. The Malfunction Indicator Light (MIL), or SERVICE ENGINE SOON light (F650-750) will also be illuminated as long as condition exists. This test is intended to diagnose the following components and circuits:
- Engine Oil Temperature (EOT) Sensor
- Wiring Harness Circuits; (EOT & SIG RTN)
- Powertrain Control Module (PCM)
EOT SENSOR SPECIFICATIONS
| Temperature - °F (°C) | Resistance - k/Ohms | Volts |
|---|---|---|
| 248 (120) | 1.19 | .53 |
| 230 (110) | 1.56 | .67 |
| 212 (100) | 2.08 | .86 |
| 194 (90) | 2.80 | 1.09 |
| 176 (80) | 3.84 | 1.37 |
| 158 (70) | 5.34 | 1.72 |
| 140 (60) | 7.55 | 2.11 |
| 122 (50) | 10.93 | 2.56 |
| 104 (40) | 16.11 | 3.01 |
| 86 (30) | 24.25 | 3.44 |
| 68 (20) | 37.34 | 3.82 |
| 50 (10) | 58.99 | 4.13 |