AutoCodes – Nissan – P0118 Nissan

P0118 Nissan Code - Engine Coolant Temperature Sensor Circuit High

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat. 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 Nissan indicates Engine Coolant Temperature Sensor Circuit High.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat.
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.

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Code Popularity 76,694

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 15, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0118 Nissan Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

Sensor Example:

OBDII Code P0118 Nissan - Engine Coolant Temperature Sensor Circuit High - AutoCodes.com — P0118 Nissan Code - Engine Coolant Temperature Sensor Circuit High

What does this mean?

What are the Possible Causes of the DTC P0118 Nissan?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) sensor
Faulty engine coolant thermostat
Engine Coolant Temperature (ECT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor electrical circuit poor connection

How to Fix the DTC P0118 Nissan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0118 Nissan code?

Need more information on how to fix the P0118 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 Nissan code diagnosed by a professional: Find a repair shop in your area

Information for Specific Nissan Models

P0118 2002 Nissan Altima Sedan — Engine Coolant Temperature Sensor Circuit High
P0118 2003 Nissan Altima Sedan — Engine Coolant Temperature Sensor Circuit High
P0118 2004 Nissan Altima Sedan — Engine Coolant Temperature Sensor Circuit High
P0118 2005 Nissan Altima Sedan — Engine Coolant Temperature Sensor Circuit High
P0118 2006 Nissan Altima Sedan — Engine Coolant Temperature Sensor Circuit High
P0118 2004 Nissan Maxima — Engine Coolant Temperature Sensor Circuit High
P0118 2005 Nissan Maxima — Engine Coolant Temperature Sensor Circuit High
P0118 2006 Nissan Maxima — Engine Coolant Temperature Sensor Circuit High
P0118 2007 Nissan Maxima — Engine Coolant Temperature Sensor Circuit High
P0118 2008 Nissan Maxima — Engine Coolant Temperature Sensor Circuit High
P0118 2005 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2006 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2007 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2008 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2009 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2010 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2011 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2012 Nissan Pathfinder — Engine Coolant Temperature Sensor Circuit High
P0118 2008 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2009 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2010 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2011 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2012 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2013 Nissan Rogue — Engine Coolant Temperature Sensor Circuit High
P0118 2002 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2003 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2004 Nissan Sentra — Engine Coolant Temperature Sensor High Input
P0118 2005 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2006 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2007 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2008 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2009 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2010 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2011 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2012 Nissan Sentra — Engine Coolant Temperature Sensor Circuit High
P0118 2007 Nissan Versa — Engine Coolant Temperature Sensor Circuit High
P0118 2008 Nissan Versa — Engine Coolant Temperature Sensor Circuit High
P0118 2009 Nissan Versa — Engine Coolant Temperature Sensor Circuit High
P0118 2010 Nissan Versa — Engine Coolant Temperature Sensor Circuit High
P0118 2011 Nissan Versa — Engine Coolant Temperature Sensor Circuit High
P0118 2012 Nissan Versa — Engine Coolant Temperature Sensor Circuit High

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 Nissan Code

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

The common symptoms of OBDII code P0118 in a Nissan include engine overheating, rough idling, poor fuel economy, and potential issues with the vehicle's heater or air conditioning.

2. What are the possible causes of the Engine Coolant Temperature Sensor Circuit High code in a Nissan?

Possible causes of the P0118 code in a Nissan include a faulty engine coolant temperature sensor, a malfunctioning thermostat, wiring issues, low coolant levels, or a problem with the engine control module.

3. How can I diagnose the cause of the P0118 code in my Nissan?

To diagnose the cause of the P0118 code in your Nissan, you can start by checking the coolant level, inspecting the wiring and connectors related to the coolant temperature sensor, testing the sensor's resistance, and verifying the thermostat's operation.

4. Can I continue driving my Nissan with the P0118 code present?

It is not recommended to drive your Nissan with the P0118 code present, as it can lead to potential engine damage due to inaccurate temperature readings. It's best to address the issue promptly to avoid further complications.

5. How can I repair the Engine Coolant Temperature Sensor Circuit High issue in my Nissan?

Repairing the P0118 code in a Nissan typically involves replacing the faulty engine coolant temperature sensor, addressing any wiring or connector issues, ensuring proper coolant levels, and verifying the thermostat's functionality.

6. Will resetting the OBDII code P0118 in my Nissan make the issue disappear?

Resetting the OBDII code P0118 in your Nissan may temporarily clear the error code, but if the underlying issue, such as a faulty sensor or wiring problem, is not addressed, the code is likely to reappear once the problem is detected again.

7. Can a DIY enthusiast fix the P0118 code in a Nissan at home?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address the P0118 code in a Nissan by following repair guides, replacing the sensor, checking wiring, and ensuring proper coolant levels. However, professional help may be needed for more complex diagnostics.

8. Is it necessary to use genuine Nissan parts when addressing the P0118 code?

While using genuine Nissan parts is recommended for optimal performance and compatibility, aftermarket sensors and components from reputable brands can also be used to address the P0118 code in your Nissan.

9. How much does it typically cost to repair the Engine Coolant Temperature Sensor Circuit High issue in a Nissan?

The cost of repairing the P0118 code in a Nissan can vary depending on the root cause of the problem, labor costs, and the price of parts. On average, the repair can range from $100 to $300 or more, including diagnosis and replacement of components.

10. Will fixing the P0118 code improve my Nissan's overall performance and fuel efficiency?

Addressing the P0118 code in your Nissan can potentially improve performance, fuel efficiency, and overall drivability by ensuring accurate engine temperature readings and proper functioning of related systems.