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Engine-Codes – Nissan – P0118 2007 Nissan Sentra

P0118 2007 Nissan Sentra Code - Engine Coolant Temperature Sensor Circuit High

Quick Answer

When the engine coolant temperature sensor circuit registers a high voltage, it triggers diagnostic trouble code P0118 in a 2007 Nissan Sentra. Common causes include Faulty engine coolant temperature sensor, Corrosion or damage to the sensor wiring, Coolant leak causing incorrect sensor readings. 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
P0118 2007 Nissan Sentra indicates Engine Coolant Temperature Sensor Circuit High.
Common causes
Common causes include Faulty engine coolant temperature sensor, Corrosion or damage to the sensor wiring, Coolant leak causing incorrect sensor readings.
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 07, 2024
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Code P0118 2007 Nissan Sentra Description

When the engine coolant temperature sensor circuit registers a high voltage, it triggers diagnostic trouble code P0118 in a 2007 Nissan Sentra. This code indicates that the engine coolant temperature sensor is reporting a temperature that is higher than expected, which can lead to various issues with the vehicle's performance. The engine coolant temperature sensor is a crucial component that monitors the temperature of the engine coolant and sends this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing to ensure optimal engine performance.

OBDII Code P0118 2007 Nissan Sentra - Engine Coolant Temperature Sensor Circuit High
P0118 2007 Nissan Sentra Code - Engine Coolant Temperature Sensor Circuit High

Common Causes of P0118 2007 Nissan Sentra

  1. Faulty engine coolant temperature sensor
  2. Corrosion or damage to the sensor wiring
  3. Coolant leak causing incorrect sensor readings
  4. Issues with the ECM
  5. Electrical issues in the sensor circuit

Symptoms of P0118 2007 Nissan Sentra

  1. Check engine light illuminated
  2. Poor fuel economy
  3. Engine overheating
  4. Rough idling
  5. Difficulty starting the engine

How to Fix P0118 2007 Nissan Sentra

  1. Diagnose the issue by using a scan tool to read the engine coolant temperature sensor data and check for any abnormalities.
  2. Inspect the engine coolant temperature sensor and its wiring for any signs of damage or corrosion.
  3. If the sensor is faulty, replace it with a new, OEM-quality sensor.
  4. Clear the trouble code from the ECM using a scan tool.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix P0118 2007 Nissan Sentra

The cost of repairing a P0118 engine coolant temperature sensor circuit high code in a 2007 Nissan Sentra can vary depending on the specific cause of the issue. Typically, the cost of a new engine coolant temperature sensor ranges from $20 to $50, while the labor cost for sensor replacement can range from $80 to $150 per hour. Overall, the total repair cost for this issue may range from $100 to $300, including parts and labor. It is advisable to consult with a professional mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of your vehicle. Labor rates at auto repair shops can vary based on location, vehicle make and model, and other factors, so it's important to consider these variables when estimating repair costs.

What does this mean?

Tech Notes for P0118 2007 Nissan Sentra

Check for coolant leaks first, if there are no leaks check to see if thermostat is opening and closing properly if its not replace thermostat if problem is still there coolant temperature sensor may need to be replaced.

When is the Code Detected?

An excessively high voltage from the sensor is sent to ECM.

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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.

Frequently Asked Questions about P0118 2007 Nissan Sentra Code

1. What are the common symptoms of OBDII code P0118 in a 2007 Nissan Sentra?

The common symptoms include the temperature gauge reading extremely high, engine overheating, poor fuel economy, and the Check Engine Light illuminating.

2. What does the OBDII code P0118 indicate in a 2007 Nissan Sentra?

The code P0118 indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit registering a high voltage.

3. What are the possible causes of OBDII code P0118 in a 2007 Nissan Sentra?

Possible causes include a faulty ECT sensor, a short or open circuit in the sensor's wiring, a malfunctioning engine control module (ECM), or low engine coolant levels.

4. How can I diagnose the cause of OBDII code P0118 in my 2007 Nissan Sentra?

You can diagnose the issue by checking the ECT sensor's electrical connections, testing the sensor's resistance, inspecting the wiring for damage, and scanning the ECM for any related fault codes.

5. Can I drive my 2007 Nissan Sentra with OBDII code P0118?

It is not recommended to drive your vehicle with code P0118 as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

6. Is it safe to reset the Check Engine Light after fixing OBDII code P0118 in my 2007 Nissan Sentra?

Yes, you can reset the Check Engine Light using an OBDII scanner after fixing the issue. If the problem is resolved, the light should not come back on.

7. How much does it typically cost to repair OBDII code P0118 in a 2007 Nissan Sentra?

The cost of repair can vary depending on the root cause of the issue. In general, replacing the ECT sensor can range from $50 to $200, while fixing wiring or ECM issues may cost more.

8. Can a DIY enthusiast fix OBDII code P0118 in a 2007 Nissan Sentra?

Yes, if you have the necessary tools and knowledge, you may be able to replace the ECT sensor or repair wiring issues yourself. However, diagnosing and fixing ECM problems may require professional assistance.

9. Will OBDII code P0118 cause my 2007 Nissan Sentra to fail an emissions test?

Yes, code P0118 can cause your vehicle to fail an emissions test as it indicates a problem with the engine coolant temperature sensor, which is essential for proper engine performance.

10. How important is it to address OBDII code P0118 promptly in a 2007 Nissan Sentra?

It is crucial to address code P0118 promptly to prevent engine damage, overheating, and potential safety hazards. Ignoring the issue can lead to more extensive and costly repairs in the future.

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