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Engine-Codes – Nissan – P0117 2009 Nissan Sentra

P0117 2009 Nissan Sentra Code - Engine Coolant Temperature Circuit Low

Quick Answer

The P0117 code for a 2009 Nissan Sentra indicates a problem with the Engine Coolant Temperature (ECT) Circuit being lower than the expected value. Common causes include Faulty ECT sensor, Corroded or damaged wiring in the ECT circuit, ECM malfunction. 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 2009 Nissan Sentra indicates Engine Coolant Temperature Circuit Low.
Common causes
Common causes include Faulty ECT sensor, Corroded or damaged wiring in the ECT circuit, ECM malfunction.
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 13, 2024
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Code P0117 2009 Nissan Sentra Description

The P0117 code for a 2009 Nissan Sentra indicates a problem with the Engine Coolant Temperature (ECT) Circuit being lower than the expected value. 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.

OBDII Code P0117 2009 Nissan Sentra - Engine Coolant Temperature Circuit Low
P0117 2009 Nissan Sentra Code - Engine Coolant Temperature Circuit Low

Common Causes of P0117 2009 Nissan Sentra

  1. Faulty ECT sensor
  2. Corroded or damaged wiring in the ECT circuit
  3. ECM malfunction
  4. Low coolant level
  5. Cooling system issues

Symptoms of P0117 2009 Nissan Sentra

  1. Poor fuel economy
  2. Rough idling
  3. Difficulty starting the engine
  4. Lack of power
  5. Stalling

How to Fix P0117 2009 Nissan Sentra

  1. Begin by checking the coolant level and ensuring there are no leaks in the cooling system.
  2. Inspect the ECT sensor and its wiring for any signs of damage or corrosion. Replace the sensor if necessary.
  3. Clear the diagnostic trouble codes from the ECM using a scan tool.
  4. Test the ECT sensor and circuit to ensure they are functioning correctly.
  5. If the issue persists, consider having the ECM checked by a professional for any potential malfunctions.

Cost to Fix P0117 2009 Nissan Sentra

The cost of repairing a P0117 code on a 2009 Nissan Sentra can vary depending on the specific cause of the issue. On average, the cost of replacing an ECT sensor ranges from $50 to $150, while diagnosing and repairing wiring issues or ECM malfunctions can increase the total cost. Including parts and labor, the total repair cost can range from $100 to $300. It's important to note that labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to ensure a competitive price.

What does this mean?

Tech Notes for P0117 2009 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 2009 Nissan Sentra Code

1. What are the common symptoms of OBDII code P0117 on a 2009 Nissan Sentra?

The common symptoms of OBDII code P0117 (Engine Coolant Temperature Circuit Low) on a 2009 Nissan Sentra include issues with the engine temperature gauge reading incorrectly, poor fuel economy, and potential difficulty starting the vehicle.

2. What are some possible causes of OBDII code P0117 on a 2009 Nissan Sentra?

Common causes of OBDII code P0117 on a 2009 Nissan Sentra include a faulty engine coolant temperature sensor, a wiring issue in the coolant temperature circuit, low coolant levels, or a malfunctioning engine control module (ECM).

3. How can I diagnose OBDII code P0117 on my 2009 Nissan Sentra?

To diagnose OBDII code P0117 on a 2009 Nissan Sentra, you can use an OBDII scanner to read the code and check the engine coolant temperature sensor's resistance with a multimeter. Additionally, inspect the wiring and connectors in the coolant temperature circuit for any damage or corrosion.

4. Can I still drive my 2009 Nissan Sentra with OBDII code P0117?

It is not recommended to drive your 2009 Nissan Sentra with OBDII code P0117 for an extended period, as it can lead to potential engine overheating and damage. It's best to address the underlying issue promptly.

5. How can I repair OBDII code P0117 on my 2009 Nissan Sentra?

To repair OBDII code P0117 on a 2009 Nissan Sentra, you may need to replace the engine coolant temperature sensor, repair any damaged wiring or connectors in the coolant temperature circuit, or address any low coolant levels. In some cases, resetting the ECM may also be necessary.

6. Will resetting the OBDII code P0117 on my 2009 Nissan Sentra fix the issue?

Resetting the OBDII code P0117 on a 2009 Nissan Sentra may temporarily clear the code, but if the underlying issue causing the fault code is not addressed, it is likely to reappear. It's important to diagnose and repair the root cause of the problem.

7. How much does it typically cost to fix OBDII code P0117 on a 2009 Nissan Sentra?

The cost to fix OBDII code P0117 on a 2009 Nissan Sentra can vary depending on the specific cause of the issue. Replacing the engine coolant temperature sensor or repairing wiring may cost between $100 to $300, while addressing more complex ECM issues could be more expensive.

8. Can a DIY enthusiast fix OBDII code P0117 on a 2009 Nissan Sentra?

A DIY enthusiast with automotive repair experience may be able to address OBDII code P0117 on a 2009 Nissan Sentra by following repair guides and using the necessary tools. However, if you are unsure about the process, it's best to seek professional help.

9. How long does it take to repair OBDII code P0117 on a 2009 Nissan Sentra?

The time it takes to repair OBDII code P0117 on a 2009 Nissan Sentra can vary depending on the specific cause of the issue and the complexity of the repair. Simple fixes like replacing the coolant temperature sensor may take an hour or two, while more involved repairs could take longer.

10. Can OBDII code P0117 on a 2009 Nissan Sentra cause other issues if left unaddressed?

If left unaddressed, OBDII code P0117 on a 2009 Nissan Sentra can potentially lead to engine overheating, poor fuel efficiency, and other related issues. It's important to diagnose and repair the problem promptly to prevent further damage.

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