P0118 2009 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 2009 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.
Code P0118 2009 Nissan Pathfinder Description
What are the Possible Causes of the DTC P0118 2009 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 2009 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 2009 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.
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Frequently Asked Questions about P0118 2009 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P0118 in a 2009 Nissan Pathfinder?
The common symptoms include the engine running hot, poor fuel economy, rough idling, and the Check Engine light illuminating.
2. What causes the OBDII code P0118 in a 2009 Nissan Pathfinder?
The most common cause of code P0118 is a faulty engine coolant temperature (ECT) sensor, which sends incorrect readings to the engine control module.
3. How can I diagnose the OBDII code P0118 in my 2009 Nissan Pathfinder?
You can diagnose the code by checking the ECT sensor's wiring for any damage, testing the sensor's resistance with a multimeter, and verifying coolant levels and system operation.
4. Can a bad thermostat trigger the OBDII code P0118 in a 2009 Nissan Pathfinder?
Yes, a malfunctioning thermostat can cause the engine to overheat, leading to incorrect temperature readings and triggering code P0118.
5. How serious is OBDII code P0118 in a 2009 Nissan Pathfinder?
Code P0118 should be addressed promptly to prevent potential engine damage from overheating and to restore optimal fuel efficiency and performance.
6. What are some repair tips for fixing the OBDII code P0118 in a 2009 Nissan Pathfinder?
Repair tips include replacing the faulty ECT sensor, checking and replacing the thermostat if necessary, and ensuring proper coolant levels and system operation.
7. Can a dirty or corroded ECT sensor connector cause the OBDII code P0118 in a 2009 Nissan Pathfinder?
Yes, a dirty or corroded connector can disrupt the signal between the ECT sensor and the engine control module, leading to code P0118.
8. Will driving with the OBDII code P0118 in a 2009 Nissan Pathfinder damage the engine?
Continued driving with code P0118 can potentially lead to engine overheating and damage, so it is advisable to address the issue promptly.
9. How much does it typically cost to repair the OBDII code P0118 in a 2009 Nissan Pathfinder?
The cost of repairing code P0118 can vary depending on the specific issue, but it generally ranges from $100 to $300 for parts and labor.
10. Can I reset the Check Engine light after fixing the OBDII code P0118 in my 2009 Nissan Pathfinder?
Yes, you can reset the Check Engine light using an OBDII scanner after fixing the underlying issue causing code P0118.
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