AutoCodes – Nissan – P0118 2006 Nissan Pathfinder

P0118 2006 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 2006 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 11,495

How popular is this code, among other codes? Low

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0118 2006 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 2006 Nissan Pathfinder - Engine Coolant Temperature Sensor Circuit High - AutoCodes.com — P0118 2006 Nissan Pathfinder Code - Engine Coolant Temperature Sensor Circuit High

What does this mean?

What are the Possible Causes of the DTC P0118 2006 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 2006 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.

What does this mean?

Code Tech Notes

If the coolant level is low, add coolant and reset the code. If the car is overheating the thermostat may have to be replaced. If the problem continues the engine coolant temperature (ECT) sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 2006 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 2006 Nissan Pathfinder code?

Need more information on how to fix the P0118 2006 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 2006 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area

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 2006 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0118 on a 2006 Nissan Pathfinder?

The common symptoms of code P0118 in a 2006 Nissan Pathfinder include the engine running hot or cold, a decrease in fuel efficiency, and the check engine light being illuminated.

2. What does OBDII code P0118 indicate for a 2006 Nissan Pathfinder?

Code P0118 on a 2006 Nissan Pathfinder indicates a problem with the Engine Coolant Temperature (ECT) sensor circuit reading higher than normal.

3. What are the possible causes of OBDII code P0118 on a 2006 Nissan Pathfinder?

Possible causes of code P0118 on a 2006 Nissan Pathfinder include a faulty ECT sensor, a problem with the ECT sensor wiring, or issues with the engine coolant temperature gauge.

4. How can I diagnose OBDII code P0118 on my 2006 Nissan Pathfinder?

To diagnose code P0118 on a 2006 Nissan Pathfinder, you can use an OBDII scanner to read the code, check the ECT sensor and its wiring for any visible damage, and perform a resistance test on the sensor.

5. Can I continue driving my 2006 Nissan Pathfinder with OBDII code P0118?

It is not recommended to continue driving your 2006 Nissan Pathfinder with code P0118, as it can lead to potential engine overheating and other serious issues. It is best to address the problem promptly.

6. How can I repair OBDII code P0118 on a 2006 Nissan Pathfinder?

To repair code P0118 on a 2006 Nissan Pathfinder, you may need to replace the Engine Coolant Temperature sensor, repair any damaged wiring, or reset the ECT sensor circuit.

7. Are there any DIY tips for fixing OBDII code P0118 on a 2006 Nissan Pathfinder?

Some DIY tips for fixing code P0118 on a 2006 Nissan Pathfinder include checking the ECT sensor connector for corrosion, ensuring proper grounding of the sensor, and verifying the accuracy of the coolant temperature reading.

8. Will resetting the check engine light fix OBDII code P0118 on a 2006 Nissan Pathfinder?

Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing code P0118 on a 2006 Nissan Pathfinder. It's important to diagnose and repair the problem to prevent further issues.

9. Can a faulty thermostat cause OBDII code P0118 on a 2006 Nissan Pathfinder?

Yes, a faulty thermostat can sometimes cause code P0118 to appear on a 2006 Nissan Pathfinder. The thermostat regulates the engine coolant temperature, so if it is malfunctioning, it can affect the ECT sensor reading.

10. Is it safe to ignore OBDII code P0118 on a 2006 Nissan Pathfinder?

Ignoring code P0118 on a 2006 Nissan Pathfinder is not advised, as it can lead to engine overheating, poor fuel efficiency, and potential damage to the vehicle. It's best to address the issue promptly to avoid further complications.