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Engine-Codes – Nissan – P0117 2012 Nissan Sentra

P0117 2012 Nissan Sentra Code - Engine Coolant Temperature Circuit Low

Quick Answer

The P0117 code on a 2012 Nissan Sentra indicates a problem with the Engine Coolant Temperature (ECT) Circuit being too low. Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Damaged wiring or connectors in the ECT circuit, Corrosion or poor connection at the ECT sensor. 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
P0117 2012 Nissan Sentra indicates Engine Coolant Temperature Circuit Low.
Common causes
Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Damaged wiring or connectors in the ECT circuit, Corrosion or poor connection at the ECT sensor.
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 P0117 2012 Nissan Sentra Description

The P0117 code on a 2012 Nissan Sentra indicates a problem with the Engine Coolant Temperature (ECT) Circuit being too low. The ECT sensor is responsible for monitoring the temperature of the engine coolant and sending 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 and efficiency. When the ECT Circuit reads a low voltage, it means that the engine coolant temperature is below the expected range, which can lead to various issues with the vehicle's operation.

OBDII Code P0117 2012 Nissan Sentra - Engine Coolant Temperature Circuit Low
P0117 2012 Nissan Sentra Code - Engine Coolant Temperature Circuit Low

Common Causes of P0117 2012 Nissan Sentra

  1. Faulty Engine Coolant Temperature (ECT) sensor
  2. Damaged wiring or connectors in the ECT circuit
  3. Corrosion or poor connection at the ECT sensor
  4. Issues with the Engine Control Module (ECM)
  5. Low engine coolant level

Symptoms of P0117 2012 Nissan Sentra

  1. Check Engine Light illuminated on the dashboard
  2. Engine running rich
  3. Rough idling or stalling
  4. Difficulty starting the engine
  5. Poor fuel efficiency

How to Fix P0117 2012 Nissan Sentra

  1. Begin by diagnosing the issue using a scan tool to retrieve the trouble code and checking the ECT sensor's resistance and voltage.
  2. Inspect the wiring and connectors in the ECT circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the ECT sensor by checking its resistance at different temperatures to determine if it is faulty.
  4. If the ECT sensor is faulty, replace it with a new one and ensure it is properly calibrated.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0117 2012 Nissan Sentra

The typical repair costs for addressing a P0117 code on a 2012 Nissan Sentra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can also impact the overall repair costs.

What does this mean?

Tech Notes for P0117 2012 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 low 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 P0117 2012 Nissan Sentra Code

1. What are the common symptoms of OBDII code P0117 in a 2012 Nissan Sentra?

The common symptoms of OBDII code P0117 in a 2012 Nissan Sentra include engine overheating, poor fuel economy, rough idling, and difficulty starting the vehicle.

2. What does the OBDII code P0117 "Engine Coolant Temperature Circuit Low" mean in a 2012 Nissan Sentra?

The OBDII code P0117 in a 2012 Nissan Sentra indicates that the engine coolant temperature sensor is reading a lower than expected temperature.

3. What are the possible causes of OBDII code P0117 in a 2012 Nissan Sentra?

Possible causes of OBDII code P0117 in a 2012 Nissan Sentra include a faulty engine coolant temperature sensor, wiring issues, low coolant level, or a malfunctioning thermostat.

4. How can I diagnose the OBDII code P0117 in my 2012 Nissan Sentra?

To diagnose the OBDII code P0117 in a 2012 Nissan Sentra, you can use an OBDII scanner to read the code, check the coolant level, inspect the wiring and connections to the coolant temperature sensor, and test the sensor for proper functionality.

5. What are the repair options for OBDII code P0117 in a 2012 Nissan Sentra?

Repair options for OBDII code P0117 in a 2012 Nissan Sentra may include replacing the engine coolant temperature sensor, fixing any wiring issues, topping up the coolant level, or replacing a faulty thermostat.

6. Can I continue driving my 2012 Nissan Sentra with OBDII code P0117?

It is not recommended to continue driving your 2012 Nissan Sentra with OBDII code P0117 as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

7. How much does it typically cost to repair OBDII code P0117 in a 2012 Nissan Sentra?

The cost to repair OBDII code P0117 in a 2012 Nissan Sentra can vary depending on the specific issue, but it may range from $100 to $300, including parts and labor.

8. Is OBDII code P0117 a serious issue in a 2012 Nissan Sentra?

OBDII code P0117 should be addressed promptly as it can lead to engine performance issues and potential damage if left unresolved. It is considered a moderate severity issue.

9. Can a DIY enthusiast fix OBDII code P0117 in a 2012 Nissan Sentra?

Depending on your skill level and tools available, some DIY enthusiasts may be able to fix OBDII code P0117 in a 2012 Nissan Sentra by replacing the engine coolant temperature sensor or checking for wiring issues.

10. How often does OBDII code P0117 occur in a 2012 Nissan Sentra?

OBDII code P0117 can occur in a 2012 Nissan Sentra due to various factors, such as sensor wear or wiring issues. It is not a common occurrence, but it can happen over time.

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