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P0118 2017 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

Quick Answer

The P0118 code on a 2017 Honda CR-V indicates a problem with the Engine Coolant Temperature Sensor 1 Circuit High Voltage. Common causes include Faulty Engine Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM, Wiring Issues: Damaged or corroded wiring connections to the sensor can cause high voltage readings, Coolant Level: Low coolant levels or air pockets in the cooling system can affect sensor readings. 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 2017 Honda CR-V indicates Engine Coolant Temperature Sensor 1 Circuit High Voltage.
Common causes
Common causes include Faulty Engine Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM, Wiring Issues: Damaged or corroded wiring connections to the sensor can cause high voltage readings, Coolant Level: Low coolant levels or air pockets in the cooling system can affect sensor readings.
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 2017 Honda CR-V Description

The P0118 code on a 2017 Honda CR-V indicates a problem with the Engine Coolant Temperature Sensor 1 Circuit High Voltage. This sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the engine control module (ECM). The ECM uses this data to adjust fuel injection, ignition timing, and other engine functions to ensure optimal performance and efficiency.

OBDII Code P0118 2017 Honda CR-V - Engine Coolant Temperature Sensor 1 Circuit High Voltage
P0118 2017 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage

Common Causes of P0118 2017 Honda CR-V

  1. Faulty Engine Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM.
  2. Wiring Issues: Damaged or corroded wiring connections to the sensor can cause high voltage readings.
  3. Coolant Level: Low coolant levels or air pockets in the cooling system can affect sensor readings.
  4. Thermostat Malfunction: A stuck-open thermostat can cause the engine to run cooler than normal, triggering the code.
  5. ECM Malfunction: In rare cases, a faulty ECM can misinterpret sensor data and trigger the P0118 code.

Symptoms of P0118 2017 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. Poor Fuel Economy: The engine may run rich or lean due to incorrect temperature readings, resulting in decreased fuel efficiency.
  3. Engine Overheating: If the sensor reports a consistently high temperature, it may lead to engine overheating.
  4. Rough Idle: Incorrect sensor readings can cause the engine to idle roughly or inconsistently.
  5. Hard Starting: The engine may have difficulty starting or may take longer to start than usual.

How to Fix P0118 2017 Honda CR-V

  1. Diagnose the Issue: Use an OBD-II scanner to read the code and confirm the high voltage reading from the Engine Coolant Temperature Sensor.
  2. Inspect Sensor and Wiring: Check the sensor for any visible damage or corrosion, and inspect the wiring for any issues.
  3. Replace Sensor: If the sensor is faulty, replace it with a new one and ensure proper installation.
  4. Check Coolant Level: Verify that the coolant level is adequate and there are no air pockets in the system.
  5. Clear Codes and Test Drive: Clear the code from the ECM, start the engine, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0118 2017 Honda CR-V

The cost of repairing the P0118 code on a 2017 Honda CR-V can vary depending on the specific cause of the issue. In general, the price of a new Engine Coolant Temperature Sensor ranges from $20 to $50, while labor costs can range from $80 to $150 per hour. The total repair cost, including parts and labor, may range from $100 to $300. However, it is advisable to check with local auto repair shops for more accurate pricing based on your location and vehicle specifics.

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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 2017 Honda CR-V Code

1. What are the common symptoms of OBDII code P0118 in a 2017 Honda CR-V?

The common symptoms of code P0118 in a 2017 Honda CR-V include issues with the engine temperature gauge reading incorrectly, engine overheating, or a noticeable drop in fuel efficiency.

2. What can cause the OBDII code P0118 in a 2017 Honda CR-V?

The most common cause of OBDII code P0118 in a 2017 Honda CR-V is a faulty engine coolant temperature sensor. Other potential causes include wiring issues, a malfunctioning thermostat, or low coolant levels.

3. How serious is the OBDII code P0118 in a 2017 Honda CR-V?

While OBDII code P0118 may not immediately prevent your 2017 Honda CR-V from running, it can lead to engine performance issues, reduced fuel efficiency, and potential long-term damage if left unresolved. It is advisable to address this code promptly.

4. How can I diagnose the OBDII code P0118 in my 2017 Honda CR-V?

To diagnose OBDII code P0118 in a 2017 Honda CR-V, you can use an OBDII scanner to read the code and check the engine coolant temperature sensor's resistance with a multimeter. Inspect the wiring and connections for any visible damage or corrosion.

5. Can I drive my 2017 Honda CR-V with OBDII code P0118?

It is not recommended to drive your 2017 Honda CR-V with OBDII code P0118 for an extended period. Continuing to drive the vehicle with this issue unresolved can lead to potential engine damage or overheating.

6. How can I repair OBDII code P0118 in my 2017 Honda CR-V?

To repair OBDII code P0118 in a 2017 Honda CR-V, you will likely need to replace the engine coolant temperature sensor. Ensure the new sensor is compatible with your vehicle and follow proper installation procedures. Additionally, check the wiring and connections for any faults.

7. Can a DIY enthusiast fix OBDII code P0118 in a 2017 Honda CR-V?

If you have the necessary tools, experience, and access to a service manual, a knowledgeable DIY enthusiast may be able to fix OBDII code P0118 in a 2017 Honda CR-V by replacing the engine coolant temperature sensor and addressing any related wiring issues.

8. How much does it cost to repair OBDII code P0118 in a 2017 Honda CR-V?

The cost to repair OBDII code P0118 in a 2017 Honda CR-V can vary depending on the labor rates in your area, the cost of parts, and whether you choose to address the issue yourself or take it to a professional mechanic. Expect costs to include the price of a new engine coolant temperature sensor and potential labor charges.

9. Will resetting the trouble codes make OBDII code P0118 disappear in my 2017 Honda CR-V?

Resetting the trouble codes may temporarily clear OBDII code P0118 in your 2017 Honda CR-V, but if the underlying issue, such as a faulty engine coolant temperature sensor, is not addressed, the code is likely to reappear once the vehicle is driven and the problem is detected again.

10. How long does it take to repair OBDII code P0118 in a 2017 Honda CR-V?

The repair time for OBDII code P0118 in a 2017 Honda CR-V can vary depending on the exact cause of the issue, the availability of parts, and the expertise of the person performing the repair. In general, replacing the engine coolant temperature sensor and addressing related wiring concerns can typically be completed within a few hours at a professional repair facility.

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