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Engine-Codes – Generic – P0197

P0197 Code - Engine Oil Temperature Sensor Low

Quick Answer

The P0197 code indicates that the Engine Oil Temperature Sensor is reading a lower than expected temperature. Common causes include Faulty Engine Oil Temperature Sensor, Wiring or electrical issues in the sensor circuit, Low engine oil level. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0197 indicates Engine Oil Temperature Sensor Low.
Common causes
Common causes include Faulty Engine Oil Temperature Sensor, Wiring or electrical issues in the sensor circuit, Low engine oil level.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P0197 Description

The P0197 code indicates that the Engine Oil Temperature Sensor is reading a lower than expected temperature. This sensor is responsible for monitoring the temperature of the engine oil, which is crucial for ensuring proper lubrication and engine performance. When the sensor detects a low oil temperature, it can lead to a variety of issues that can affect the vehicle's overall performance and efficiency.

OBDII Code P0197 - Engine Oil Temperature Sensor Low
P0197 Code - Engine Oil Temperature Sensor Low

Common Causes of P0197

  1. Faulty Engine Oil Temperature Sensor
  2. Wiring or electrical issues in the sensor circuit
  3. Low engine oil level
  4. Coolant temperature sensor malfunction
  5. Engine thermostat stuck open

Symptoms of P0197

  1. Check Engine Light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Engine running rough or misfiring
  4. Engine overheating
  5. Difficulty starting the engine in cold weather

How to Fix P0197

  1. Begin by diagnosing the issue using a scan tool to confirm the P0197 code and identify the specific cause.
  2. Inspect the Engine Oil Temperature Sensor and its wiring for any signs of damage or corrosion. Replace the sensor if necessary.
  3. Check the engine oil level and top up if low. Ensure the correct oil viscosity is used for the vehicle.
  4. Test the coolant temperature sensor and thermostat to ensure they are functioning properly.
  5. Clear the diagnostic trouble codes and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0197

The cost of repairing a P0197 code can vary depending on the specific cause of the issue. On average, the replacement of an Engine Oil Temperature Sensor can cost between $50 and $150 for the part alone. Labor costs can range from $80 to $150 per hour, with the total repair bill potentially amounting to $150 to $300 or more. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

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Code P0197 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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