Engine-Codes
 
OBDII Code List
 
P0197 2000 FORD F150

P0197 2000 FORD F150 - Engine Oil Temperature Sensor Circuit Low Input

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty Engine Oil Temperature sensor
  • Engine Oil Temperature sensor harness is open or shorted
  • Engine Oil Temperature sensor circuit poor electrical connection
  • Damaged PCM

Tech notes

Indicates Engine Oil Temperature (EOT) signal voltage is low (high temperature)

When is the code detected?

The P0197 indicates the Engine Oil Temperature Sensor signal voltage is low (high temperature).

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0197 2000 Ford F150 Description

The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
OBDII Code P0197 2000 Ford F150 - Engine Oil Temperature Sensor Circuit Low Input  - Engine-Codes.com

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