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P0118 2016 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

Quick Answer

The P0118 code for a 2016 Honda CR-V indicates an issue with the Engine Coolant Temperature (ECT) Sensor 1 Circuit registering high voltage. Common causes include Faulty ECT Sensor: The most common cause of the P0118 code is a malfunctioning ECT sensor that is sending incorrect voltage readings to the ECM, Wiring Issues: Damaged or corroded wiring in the ECT sensor circuit can lead to high voltage readings, Connector Problems: Loose or damaged connectors in the ECT sensor circuit can also trigger the P0118 code. 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 2016 Honda CR-V indicates Engine Coolant Temperature Sensor 1 Circuit High Voltage.
Common causes
Common causes include Faulty ECT Sensor: The most common cause of the P0118 code is a malfunctioning ECT sensor that is sending incorrect voltage readings to the ECM, Wiring Issues: Damaged or corroded wiring in the ECT sensor circuit can lead to high voltage readings, Connector Problems: Loose or damaged connectors in the ECT sensor circuit can also trigger the P0118 code.
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 17, 2024
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Code P0118 2016 Honda CR-V Description

The P0118 code for a 2016 Honda CR-V indicates an issue with the Engine Coolant Temperature (ECT) Sensor 1 Circuit registering high voltage. The ECT sensor is a crucial component of the engine management system, as it measures the temperature of the engine coolant and sends this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing for optimal engine performance and efficiency.

OBDII Code P0118 2016 Honda CR-V - Engine Coolant Temperature Sensor 1 Circuit High Voltage
P0118 2016 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

Common Causes of P0118 2016 Honda CR-V

  1. Faulty ECT Sensor: The most common cause of the P0118 code is a malfunctioning ECT sensor that is sending incorrect voltage readings to the ECM.
  2. Wiring Issues: Damaged or corroded wiring in the ECT sensor circuit can lead to high voltage readings.
  3. Connector Problems: Loose or damaged connectors in the ECT sensor circuit can also trigger the P0118 code.
  4. ECM Malfunction: In rare cases, a malfunction in the engine control module (ECM) can cause the ECT sensor to register high voltage.

Symptoms of P0118 2016 Honda CR-V

  1. Check Engine Light: The most common symptom associated with the P0118 code is the illumination of the check engine light on the dashboard.
  2. Engine Overheating: A faulty ECT sensor can lead to inaccurate temperature readings, causing the engine to overheat.
  3. Poor Fuel Economy: Incorrect coolant temperature readings can result in the engine running rich or lean, leading to decreased fuel efficiency.
  4. Rough Idling: The engine may experience rough idling or stalling due to incorrect temperature data being sent to the ECM.
  5. Difficulty Starting: In some cases, a malfunctioning ECT sensor can cause difficulty starting the engine, especially in cold weather.

How to Fix P0118 2016 Honda CR-V

  1. Diagnose the Issue: Use a scan tool to read the code and check the ECT sensor's voltage readings to determine if the sensor is faulty or if there are wiring/connectivity issues.
  2. Replace ECT Sensor: If the sensor is determined to be faulty, replace it with a new one following the manufacturer's guidelines.
  3. Check Wiring and Connectors: Inspect the wiring and connectors in the ECT sensor circuit for any damage or corrosion, repairing or replacing as needed.
  4. Clear Codes: After completing the repair, clear the diagnostic trouble codes (DTCs) with a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0118 2016 Honda CR-V

The cost of repairing a P0118 code on a 2016 Honda CR-V can vary depending on the specific cause of the issue. In general, the cost of a new ECT sensor ranges from $20 to $100, while the labor cost for the repair can range from $80 to $150 per hour. The total repair cost, including parts and labor, is typically between $100 and $300. However, it's important to note that labor rates can vary based on the location of the repair shop, the vehicle's make and model, and the type of engine. It's advisable to check with local auto repair shops for a more accurate estimate.

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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 2016 Honda CR-V Code

1. What are the common symptoms of OBDII code P0118 in a 2016 Honda CR-V?

The common symptoms of P0118 in a 2016 Honda CR-V include engine overheating, poor fuel economy, rough idle, and the check engine light illuminating on the dashboard.

2. What causes the OBDII code P0118 in a 2016 Honda CR-V?

The most common cause of P0118 in a 2016 Honda CR-V is a faulty engine coolant temperature sensor or a problem with the sensor circuit like a wiring issue or a poor connection.

3. How can I diagnose the OBDII code P0118 in my 2016 Honda CR-V?

To diagnose P0118, you can use an OBDII scanner to read the code, visually inspect the coolant temperature sensor and its wiring, and test the sensor's resistance with a multimeter.

4. Can I still drive my 2016 Honda CR-V with OBDII code P0118?

It is not recommended to drive your 2016 Honda CR-V with P0118 as it can lead to engine damage due to incorrect temperature readings and may cause other issues like poor performance or overheating.

5. How do I repair OBDII code P0118 in my 2016 Honda CR-V?

To repair P0118, you may need to replace the engine coolant temperature sensor, repair any damaged wiring or connections, clear the code with an OBDII scanner, and monitor the system for proper operation.

6. Will resetting the check engine light fix OBDII code P0118 in a 2016 Honda CR-V?

Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing P0118. It's important to diagnose and repair the problem to prevent further issues.

7. Are there any DIY tips for troubleshooting OBDII code P0118 in a 2016 Honda CR-V?

DIY tips for troubleshooting P0118 include checking the coolant level, inspecting the sensor and its wiring for damage, and ensuring proper connections before considering sensor replacement.

8. How much does it cost to repair OBDII code P0118 in a 2016 Honda CR-V?

The cost to repair P0118 in a 2016 Honda CR-V can vary depending on the cause of the issue, but it typically ranges from $100 to $300 for parts and labor if the coolant temperature sensor needs replacement.

9. Can a bad thermostat cause OBDII code P0118 in a 2016 Honda CR-V?

While a faulty thermostat can cause cooling system issues, it is not a direct cause of P0118. The code is typically related to the engine coolant temperature sensor or its circuit.

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