AutoCodes – Nissan – P0118 2010 Nissan Pathfinder

P0118 2010 Nissan Pathfinder 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 2010 Nissan Pathfinder 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 5,939
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0118 2010 Nissan Pathfinder 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.
OBDII Code P0118 2010 Nissan Pathfinder - Engine Coolant Temperature Sensor Circuit High - AutoCodes.com
P0118 2010 Nissan Pathfinder Code - Engine Coolant Temperature Sensor Circuit High

What are the Possible Causes of the DTC P0118 2010 Nissan Pathfinder?

  • 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 2010 Nissan Pathfinder?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 2010 Nissan Pathfinder 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 2010 Nissan Pathfinder code?

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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 2010 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0118 on a 2010 Nissan Pathfinder?

The common symptoms of OBDII code P0118 (Engine Coolant Temperature Sensor Circuit High) on a 2010 Nissan Pathfinder include the engine running hotter than normal, poor fuel economy, and potentially a check engine light on the dashboard.

2. What could cause the OBDII code P0118 on a 2010 Nissan Pathfinder?

The OBDII code P0118 on a 2010 Nissan Pathfinder is typically caused by a faulty engine coolant temperature sensor, a corroded sensor connector, or issues with the wiring harness connected to the sensor.

3. How does a high engine coolant temperature sensor circuit affect the performance of a 2010 Nissan Pathfinder?

A high engine coolant temperature sensor circuit in a 2010 Nissan Pathfinder can result in inaccurate temperature readings, leading to potential engine overheating, poor fuel combustion, and decreased overall performance.

4. Can I continue driving my 2010 Nissan Pathfinder with OBDII code P0118?

It is not recommended to continue driving a 2010 Nissan Pathfinder with OBDII code P0118 (Engine Coolant Temperature Sensor Circuit High) as it can lead to engine overheating and potential damage if left unaddressed.

5. How can I diagnose and repair OBDII code P0118 on my 2010 Nissan Pathfinder?

To diagnose and repair OBDII code P0118 on a 2010 Nissan Pathfinder, you can start by checking the engine coolant temperature sensor, inspecting the wiring and connector for any damage, and clearing the code to see if it returns after repairs.

6. Will resetting the check engine light resolve OBDII code P0118 on a 2010 Nissan Pathfinder?

While resetting the check engine light may temporarily clear the code, it will not fix the underlying issue causing OBDII code P0118 on a 2010 Nissan Pathfinder. Proper diagnosis and repair are necessary to resolve the problem.

7. Is it possible to replace the engine coolant temperature sensor in a 2010 Nissan Pathfinder myself?

Replacing the engine coolant temperature sensor in a 2010 Nissan Pathfinder can be a DIY task for those with mechanical experience. However, if you're unsure, it's best to have a professional mechanic handle the replacement to ensure proper installation.

8. Can extreme weather conditions trigger OBDII code P0118 on a 2010 Nissan Pathfinder?

Extreme weather conditions, such as very cold or very hot temperatures, can potentially affect the engine coolant temperature sensor readings and trigger OBDII code P0118 on a 2010 Nissan Pathfinder.

9. How frequently does OBDII code P0118 occur in 2010 Nissan Pathfinders?

OBDII code P0118 (Engine Coolant Temperature Sensor Circuit High) is a relatively common issue in 2010 Nissan Pathfinders, especially as the vehicle ages and the sensor or related components wear out.

10. Are there any preventive measures to avoid OBDII code P0118 in a 2010 Nissan Pathfinder?

Regular maintenance of the cooling system, including checking the engine coolant sensor and its connections, can help prevent OBDII code P0118 in a 2010 Nissan Pathfinder. Additionally, addressing any issues promptly can prevent further damage.

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