P0195
Fix within a few daysEngine Oil Temperature Sensor Malfunction
Code P0195 means your Engine Oil Temperature sensor has a malfunction. Common causes: Faulty EOT sensor (70%), wiring issues (25%). Drivability: Yes, for short trips. Repair cost: $20-$100 DIY, $100-$300 professional.
Can I Drive With P0195?
Yes, for short trips only
Essential trips under 10 miles, avoid highways and heavy loads. Monitor engine temperature closely.
Stop driving immediately if: Flashing CEL, engine overheating, significant power loss, or unusual noises.
Symptoms of P0195
- 1Check Engine Light is on
- 2Engine cooling fans run constantly or not at all
- 3Engine runs rough or idles erratically
- 4Poor fuel economy
- 5Engine overheating (less common, but possible)
- 6Incorrect or no reading on the oil temperature gauge
Common Causes of P0195
Parts most likely causing this code, ranked by probability
The EOT sensor provides incorrect data or no data to the engine computer, causing the P0195 code.
70% of P0195 cases are fixed by replacing this part
Damaged, corroded, or loose wiring and connectors prevent the EOT sensor signal from reaching the engine computer.
25% of P0195 cases are fixed by repairing wiring or connectors
A faulty engine computer cannot correctly process the EOT sensor signal or has an internal fault related to the sensor circuit.
5% of P0195 cases are fixed by replacing the ECM/PCM
Check These First (Before Buying Parts)
- Visually inspect the EOT sensor's electrical connector for corrosion, bent pins, or loose connections.
- Check the wiring harness leading to the EOT sensor for any signs of damage, fraying, or rodent chewing.
- Ensure your engine oil level is correct, as extremely low oil can sometimes affect sensor readings (though less common for P0195).
How to Diagnose P0195
- 1Connect an OBD-II scanner to confirm P0195 and check for other related codes.
- 2Visually inspect the Engine Oil Temperature (EOT) sensor and its wiring harness for any obvious damage, corrosion, or loose connections.
- 3Locate the EOT sensor (often near the oil filter, oil pan, or cylinder head) and disconnect its electrical connector.
- 4Using a multimeter, test the resistance of the EOT sensor at various engine temperatures (if possible) and compare to manufacturer specifications.
- 5Check for proper voltage (reference voltage, usually 5V) at the EOT sensor connector from the engine computer.
- 6Check for continuity in the EOT sensor's signal and ground wires back to the engine computer.
- 7If all sensor and wiring tests pass, consider a faulty engine computer as a last resort.
P0195 on Popular Vehicles
Ford F-150
2004-2024The EOT sensor on Ford F-150s is often located in the oil pan or near the oil filter. Its exposed location can make it susceptible to damage or corrosion, leading to P0195.
80% fixed by replacing the EOT sensor or repairing wiring
Chevrolet Silverado
2007-2024Silverado trucks can experience P0195 due to a failing EOT sensor, which is typically found in the oil pan or engine block. Wiring harness issues, especially near the sensor, are also common.
75% fixed by replacing the EOT sensor or repairing wiring
Honda Accord
2003-2024On Honda Accord models, the EOT sensor can be in various locations depending on the engine, sometimes integrated with other sensors. Wiring integrity is crucial, as corrosion in the connector is a known issue.
70% fixed by replacing the EOT sensor or repairing wiring
Frequently Asked Questions
What does P0195 mean?
P0195 indicates a malfunction in the Engine Oil Temperature (EOT) sensor circuit, meaning the engine computer is not receiving a correct or expected signal from the sensor.
Can I drive with P0195?
Yes, you can drive for short, essential trips. However, fix this code within a few days. Incorrect oil temperature data can lead to the engine running inefficiently, affecting fuel economy, or in some cases, causing cooling fan issues that could lead to overheating.
Will P0195 clear itself?
No, P0195 will not clear itself. The engine computer stores this code until the underlying issue with the EOT sensor or its circuit is resolved and the code is manually cleared with an OBD-II scanner, or after several drive cycles without the fault present.
How do I fix P0195 myself?
Start by visually inspecting the EOT sensor and its wiring for damage. If the wiring is good, test the sensor's resistance with a multimeter. If the sensor is faulty, replace it. Ensure the engine is cool before working on the sensor, as it's often in contact with engine oil.
How much does it cost to fix P0195?
The cost to fix P0195 ranges from $20-$100 for parts if you do it yourself. A professional repair at a shop typically costs $100-$300, including parts and labor.
P0195 keeps coming back - why?
If P0195 keeps returning, it indicates the initial repair did not address the root cause. This often means the wiring to the EOT sensor is still faulty, there's a poor connection at the sensor or engine computer, or in rare cases, the engine computer itself is failing.
Will P0195 fail emissions/smog test?
Yes, P0195 will cause your vehicle to fail an emissions or smog test. The Check Engine Light being on automatically results in a failure in most jurisdictions, and the EOT sensor is a monitored component of the engine's emissions system.
What's the difference between P0195 and P0196?
P0195 indicates a general malfunction in the Engine Oil Temperature sensor circuit, meaning the computer isn't getting a valid signal. P0196 specifically points to a 'Range/Performance Problem,' meaning the sensor is sending a signal, but it's outside the expected operating range or is inconsistent.
P0195 on Ford F-150
On many Ford F-150 models, the EOT sensor is located in the oil pan or near the oil filter housing. It's common for these sensors to fail due to exposure to heat and road debris, or for their wiring to become brittle or corroded over time.
Questions to Ask Your Mechanic
Did you test the resistance of the EOT sensor at different temperatures?
Good answer: Yes, I used a multimeter and compared the readings to the factory specifications. The sensor was showing an open circuit/incorrect resistance.
What did you find when checking the wiring harness to the EOT sensor?
Good answer: I performed a continuity test and checked for voltage at the connector. There was a corroded pin/broken wire that I repaired.
Repair Cost Estimate
DIY Repair
Parts only
$20-$100
Shop Repair
Parts + labor
$100-$300
Save $80-$200 by doing it yourself
Difficulty
intermediate
Time
1-2 hours
Intermediate. While replacing the sensor itself can be straightforward, diagnosing the wiring and using a multimeter requires some mechanical knowledge and specific tools.
Cost of Waiting
Ignoring P0195 can lead to the engine computer receiving incorrect oil temperature data. This impacts fuel delivery, ignition timing, and cooling fan operation, potentially causing reduced fuel economy, poor engine performance, or in severe cases, engine overheating and accelerated wear. A $50 sensor replacement now prevents more costly engine damage later.
While You're In There...
If the EOT sensor requires draining oil for access, it's a good time to perform an oil change and replace the filter.
Often located in the same general area as the EOT sensor, if you're already accessing that part of the engine, replacing both can prevent future issues.
Tools You'll Need
- OBD-II scanner
- Multimeter
- Socket set
- Wrenches
- Drain pan (if oil needs to be drained)
- Jack and jack stands (if under-car access is needed)
P0195 is a common sensor code. Most repairs involve replacing an affordable sensor or fixing a simple wiring issue, and your engine will run correctly afterward.
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Your Next Steps
Step 1: Visually inspect the EOT sensor and its wiring for any obvious damage or loose connections. Clean any corrosion.
Step 2: If the visual inspection doesn't reveal the issue, use a multimeter to test the EOT sensor's resistance and check for proper voltage at the connector. Compare readings to your vehicle's service manual.
Step 3: If the sensor tests faulty or the wiring is damaged, replace the Engine Oil Temperature sensor or repair the wiring. You'll likely need a new EOT sensor and possibly some electrical connectors or wiring repair kits.