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P0195 OBD2: Engine Oil Temperature Sensor Circuit

P0195 OBD2: Engine Oil Temperature Sensor Circuit

The P0195 OBD-II code indicates a problem with the Engine Oil Temperature Sensor Circuit. This code is generated when the engine control module (PCM) detects an incorrect signal from the engine oil temperature sensor.

What Does the P0195 Code Mean?

The P0195 code signifies that the PCM has identified an issue with the engine oil temperature sensor’s circuit. This sensor is crucial as it provides real-time data about the engine oil’s temperature, which is essential for optimal engine performance.

What Causes the P0195 Code?

Several factors can trigger the P0195 code, including:

  • Oil temperature sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues related to the oil temperature sensor

What Are the Symptoms of the P0195 Code?

When the P0195 code is present, you may experience symptoms such as:

  • Illuminated check engine light
  • Engine performance issues
  • Increased oil temperature readings
  • Potential overheating of the engine

How Serious Is the P0195 Code?

The P0195 code is considered urgent. Ignoring it can lead to severe engine damage or pose safety risks to the driver and passengers. It’s essential to address this code promptly to prevent further complications.

How to Diagnose the P0195 Code

To diagnose the P0195 code, a mechanic will typically follow these steps:

  • Use an OBD-II scanner to confirm the P0195 code and check for any additional codes.
  • Inspect the wiring and connections related to the engine oil temperature sensor for signs of damage or corrosion.
  • Test the engine oil temperature sensor with a multimeter to ensure it is providing accurate readings.
  • Check the PCM for any faults that may be causing incorrect signals.

Common Repairs for the P0195 Code

Common repairs for the P0195 code may include:

  • Replacing a faulty engine oil temperature sensor
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P0195 Code?

The cost to fix the P0195 code can vary widely based on the specific issue. On average, repairs can range from $100 to $400, depending on whether you need to replace the sensor, repair wiring, or replace the PCM.

Can I Fix the P0195 Code Myself?

While some DIY enthusiasts may be able to replace the engine oil temperature sensor or repair wiring issues, proper diagnosis is critical to ensure the root cause is addressed. If you’re not experienced with automotive repairs, it’s advisable to seek professional assistance to avoid unnecessary repairs.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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