Chrysler P0197 Engine Oil Temperature Sensor Low

Description

OBD-II Trouble Code Description for P0197 Chrysler

Engine Oil Temperature Sensor Low

What does this mean?

OBD2 Code P0197 Chrysler definition:
The Engine Oil Temperature (EOT) sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases and the resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to temperature. Thermistor-type sensors are considered passive sensor. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. Voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor. The EOT sensor measures the temperature of the engine oil. The sensor is typically threaded into the engine oil lubrication system. The PCM can use the EOT sensor input to determine the following: – On variable cam timing (VCT) applications the EOT input is used to adjust the VCT control gains and logic for camshaft timing. – The PCM can use the EOT sensor input in conjunction with other PCM inputs to determine oil degradation – The PCM can use EOT sensor input to initiate a soft engine shutdown. To prevent engine damage from occurring as a result of high oil temperature, the PCM has the ability to initiate a soft engine shutdown. Whenever engine RPM exceeds a calibrated level for a certain period of time, the PCM will begin reducing power by disabling engine cylinders.

Symptoms

Possible sumptoms of OBD code P0197 Chrysler
– Engine Light ON (or Service Engine Soon Warning Light) – Lack/Loss of Power – Engine Surge

Causes

Possible causes of OBD code P0197 Chrysler
– Engine not at operating temperature. – Cooling system problem of stuck thermostat. – EOT circuit failure. – Bad EOT sensor – Damaged PCM. The Error code is generally activated on detection of the following conditions: Indicates EOT signal voltage is low (high temperature).

Possible Solutions

1. Disconnect the EOT sensor harness connector 2. Check for opposite failure with EOT disconnected 3. If DTC P0198 Chrysler is present replace EOT sensor


The OBD2 Code Information Be Applicable For Chrysler:

2013 Chrysler Town and Country S,2013 Chrysler 300 Motown Edition,2013 Chrysler 300 Glacier,2012 Chrysler Ypsilon,2012 Chrysler Delta,2012 Chrysler 300 SRT8,2012 Chrysler 300 Luxury Series,2012 Chrysler 300C,2011 Chrysler Town and Country,2011 Chrysler 300,2011 Chrysler 200 S,2011 Chrysler 200 Convertible,2011 Chrysler 200,2009 Chrysler GEM Peapod,2009 Chrysler 200C EV Concept,2008 Chrysler ecoVoyager Concept,2008 Chrysler Town and Country,2008 Chrysler Sebring Convertible,2008 Chrysler EV Concept,2008 Chrysler 300C UK Version,2008 Chrysler 300C Touring UK Version,2008 Chrysler 300C Touring SRT UK Version,2008 Chrysler 300C SRT UK Version,2007 Chrysler Sebring UK Version,2007 Chrysler Sebring,2007 Chrysler Pacifica,2007 Chrysler PT Street Cruiser Pacific Coast Highway,2007 Chrysler Nassau Concept,2007 Chrysler Crossfire UK Version,2007 Chrysler Crossfire Roadster UK Version,2007 Chrysler Aspen,2006 Chrysler Imperial Concept,2006 Chrysler 300C SRT8 Touring,2006 Chrysler 300C Heritage Edition,2005 Chrysler Town and Country,2005 Chrysler PT Cruiser Convertible,2005 Chrysler Firepower Concept,2005 Chrysler Crossfire SRT6 Roadster,2005 Chrysler Crossfire SRT6,2005 Chrysler Crossfire Roadster,2005 Chrysler Akino Concept,2005 Chrysler 300C Touring,2005 Chrysler 300C SRT8,2005 Chrysler 300C,2005 Chrysler 300,2004 Chrysler Pacifica,2004 Chrysler ME FourTwelve Concept,2004 Chrysler Crossfire,2003 Chrysler Airflite Concept,2003 Chrysler 300M,2003 Chrysler 300C Touring Concept,2003 Chrysler 300C Concept,2002 Chrysler Pacifica Concept,2002 Chrysler California Cruiser Concept

 

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