P0195 OBD-II Trouble Code: Engine Oil Temperature (EOT) Sensor Malfunction

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Cost of diagnosing the P0195 code

P0195 is a diagnostic trouble code (DTC) for "Engine Oil Temperature (EOT) Sensor Malfunction". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
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P0195 code definition

Engine Oil Temperature (EOT) sensor malfunction

What the P0195 code means

The intended purpose of this code is to indicate if there is a problem with one of the circuits that monitor the engine oil temperature. However, if there are cooling system problems, the diagnostics designed to confirm the proper operation of the EOT can interpret the results as a failure in the EOT system. For this reason, cooling system issues need to be addressed first.

What causes the P0195 code?

  • Faulty engine oil temperature sensor
  • Problems with the EOT circuit
  • Faulty powertrain control module (PCM)
  • Cooling system malfunctions

What are the symptoms of the P0195 code?

The only symptom is a Check Engine Light. The EOT system is there to detect other problems with the vehicle. If the circuits of the EOT system has problems, it will be unable to monitor the oil temperature.

How does a mechanic diagnose the P0195 code?

A scan tool should be used to watch the sensor data, but most often, a resistance check is performed on the sensor and is the final test performed before determining the source of the P0195 code.

Common mistakes when diagnosing the P0195 code

  • A technician chooses to replace the sensor without checking the wiring going to and from the EOT sensor.

  • Failing to check the reference voltage the PCM provides to the sensor.

  • Not identifying problems with the cooling system that can mimic the data that sets this code.

How serious is the P0195 code?

The P0195 code by itself is not serious. It will not leave an owner stranded on the side of the road. However, if the system is left unrepaired, it is possible that severe engine damage can occur if the EOT system is unable to detect the problems that it is suppose to monitor for.

What repairs can fix the P0195 code?

Additional comments for consideration regarding the P0195 code

A P0195 code is a generic code that all manufacturers can use and must always retain the same definition. The P0196 code is most commonly used for a wider variety of vehicles.

Each manufacturer utilizes a different diagnostic method for the testing of this system. Even then, it is often used in performance vehicles that are designed to be driven very hard. Driving in racing conditions pushes the vehicle to the limits of its engineering beyond what an everyday driver will experience. For this reason, an EOT system is not common on most vehicles.

Need help with a P0195 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
P0195
Check Engine Light

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Al

21 years of experience
14 reviews
Al
21 years of experience
Nissan Pathfinder - Check Engine Light is on - Atlanta, Georgia
Al, was cool and very knowledgeable. Being direct and upfront always works. Al, is a credit to the company.

Xavier

10 years of experience
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Xavier
10 years of experience
Chevrolet Equinox - Check Engine Light is on - Frisco, Texas
Xavier was GREAT!!! He made sure that I understood everything that he did to my vehicle and answered all my questions. Very thorough and even worked thru the light rain that we had. When I have to use this service again, I hope to be able to request him!

Luis

14 years of experience
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Luis
14 years of experience
Kia Sorento - Check Engine Light is on - Las Vegas, Nevada
Luis did an excellent job in determining that this was a warranty issue on bad parts. He has integrity and is good at what he does. I would highly recommend him for any auto repairs that come up.

Reginald

36 years of experience
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Reginald
36 years of experience
BMW 325i - Check Engine Light is on - Los Angeles, California
Reginald was incredibly helpful in helping me to diagnose several issues in my car, as well as repair issues to help me pass a break and light test. He even went so far as to come to the brake and light testing location so that he could ensure that the car passed and be there if anything else needed to be fixed on the spot. Absolutely would recommend him to anyone who is looking for an honest and knowledgeable mechanic!


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