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Engine-Codes – Nissan – P0117 2009 Nissan Altima Sedan

P0117 2009 Nissan Altima Sedan Code - Engine Coolant Temperature Circuit Low

Quick Answer

The P0117 code for a 2009 Nissan Altima Sedan indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit registering a low voltage. Common causes include Faulty ECT sensor, Damaged ECT sensor wiring harness, Corroded or loose connection. 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 Altima Sedan indicates Engine Coolant Temperature Circuit Low.
Common causes
Common causes include Faulty ECT sensor, Damaged ECT sensor wiring harness, Corroded or loose connection.
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 12, 2024
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Code P0117 2009 Nissan Altima Sedan Description

The P0117 code for a 2009 Nissan Altima Sedan indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit registering a low voltage. The ECT sensor is responsible for monitoring the temperature of the engine coolant, which is crucial for the engine's performance and efficiency. When the ECT sensor detects a low voltage signal, it means that the engine coolant temperature is lower than expected, potentially leading to issues with fuel efficiency, emissions, and overall engine performance.

OBDII Code P0117 2009 Nissan Altima Sedan - Engine Coolant Temperature Circuit Low
P0117 2009 Nissan Altima Sedan Code - Engine Coolant Temperature Circuit Low

Common Causes of P0117 2009 Nissan Altima Sedan

  1. Faulty ECT sensor
  2. Damaged ECT sensor wiring harness
  3. Corroded or loose connection
  4. ECM receiving incorrect data from the sensor

Symptoms of P0117 2009 Nissan Altima Sedan

  1. Poor fuel economy
  2. Engine overheating
  3. Difficulty starting the vehicle
  4. Rough idling
  5. Engine misfires

How to Fix P0117 2009 Nissan Altima Sedan

  1. Begin by locating the ECT sensor on the engine. It is typically located near the thermostat housing.
  2. Inspect the wiring harness connected to the ECT sensor for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the ECT sensor using a multimeter to check for proper resistance values. Replace the sensor if it is faulty.
  4. Clear the diagnostic trouble codes from the vehicle's ECM using an OBD-II scanner.
  5. Start the vehicle and monitor the engine coolant temperature to ensure it is now reading accurately.

Cost to Fix P0117 2009 Nissan Altima Sedan

The typical repair costs for addressing a P0117 code on a 2009 Nissan Altima Sedan 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 with local shops for a more accurate estimate.

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 Altima Sedan Code

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

The common symptoms of code P0117 on a 2009 Nissan Altima Sedan may include the engine running hotter than normal, the temperature gauge not working properly, and potential issues with the vehicle's fuel efficiency.

2. What are the possible causes of the Engine Coolant Temperature Circuit Low code on a 2009 Nissan Altima Sedan?

Possible causes of code P0117 on a 2009 Nissan Altima Sedan include a faulty engine coolant temperature sensor, a malfunctioning thermostat, wiring issues in the coolant temperature circuit, or low coolant levels.

3. How can I diagnose the Engine Coolant Temperature Circuit Low code on my 2009 Nissan Altima Sedan?

To diagnose code P0117 on a 2009 Nissan Altima Sedan, you can use an OBDII scanner to retrieve the trouble code, visually inspect the engine coolant temperature sensor and wiring, and perform a resistance test on the sensor.

4. What are some repair tips for fixing OBDII code P0117 on a 2009 Nissan Altima Sedan?

Some repair tips for code P0117 on a 2009 Nissan Altima Sedan include replacing the engine coolant temperature sensor, checking and replacing the thermostat if necessary, ensuring proper coolant levels, and repairing any damaged wiring in the coolant temperature circuit.

5. Can I continue driving my 2009 Nissan Altima Sedan with the Engine Coolant Temperature Circuit Low code?

It is not recommended to continue driving your 2009 Nissan Altima Sedan with code P0117, as it can lead to potential engine damage due to incorrect temperature readings and improper cooling system function.

6. Will resetting the check engine light resolve the Engine Coolant Temperature Circuit Low code on a 2009 Nissan Altima Sedan?

Simply resetting the check engine light will not fix the underlying issue causing code P0117 on a 2009 Nissan Altima Sedan. It is essential to diagnose and repair the root cause of the problem to prevent further issues.

7. How much does it typically cost to repair OBDII code P0117 on a 2009 Nissan Altima Sedan?

The cost of repairing code P0117 on a 2009 Nissan Altima Sedan can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the Engine Coolant Temperature Circuit Low code on a 2009 Nissan Altima Sedan?

If you have experience working on cars and the necessary tools, you may be able to fix code P0117 on a 2009 Nissan Altima Sedan yourself by replacing the engine coolant temperature sensor or checking and repairing the wiring.

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

The repair time for code P0117 on a 2009 Nissan Altima Sedan can vary depending on the exact cause of the issue and your level of experience. In general, it may take anywhere from 1 to 2 hours to complete the repair.

10. Are there any recalls related to the Engine Coolant Temperature Circuit Low code on a 2009 Nissan Altima Sedan?

For information on recalls related to code P0117 on a 2009 Nissan Altima Sedan, you can check with Nissan's official website or contact your local dealership to inquire about any relevant recalls or service bulletins.

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