P0198: Engine Oil Temperature (EOT) Sensor Circuit High Input
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0198 - ENGINE OIL TEMPERATURE (EOT) SENSOR CIRCUIT HIGH INPUT
| Description: | Indicates EOT signal voltage is high (low temperature). | ||
| Possible Causes: |
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| Diagnostic Aids: | An EOT V PID reading greater than 4.5 volts with key ON and engine OFF or during any engine operating mode indicates an open circuit hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DY: ENGINE OIL TEMPERATURE (EOT) SENSOR Step 2. | ||