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P0116 2018 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem

Quick Answer

The P0116 diagnostic trouble code (DTC) on a 2018 Honda CR-V indicates an issue with the Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance. Common causes include Faulty ECT Sensor: The most common cause of this code is a defective ECT sensor that is not providing accurate temperature readings, Wiring Issues: Corroded, damaged, or loose wiring connections related to the ECT sensor can cause circuit range/performance problems, Connector Problems: Poor connections or corrosion in the ECT sensor connector can also trigger this 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
P0116 2018 Honda CR-V indicates Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem.
Common causes
Common causes include Faulty ECT Sensor: The most common cause of this code is a defective ECT sensor that is not providing accurate temperature readings, Wiring Issues: Corroded, damaged, or loose wiring connections related to the ECT sensor can cause circuit range/performance problems, Connector Problems: Poor connections or corrosion in the ECT sensor connector can also trigger this 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 10, 2024
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Code P0116 2018 Honda CR-V Description

The P0116 diagnostic trouble code (DTC) on a 2018 Honda CR-V indicates an issue with the Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance. The ECT sensor is a crucial component of the engine management system, responsible for monitoring the temperature of the coolant to ensure optimal engine performance and efficiency. This sensor sends temperature data to the engine control module (ECM), which uses this information to adjust fuel delivery and ignition timing.

OBDII Code P0116 2018 Honda CR-V - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem
P0116 2018 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem

Common Causes of P0116 2018 Honda CR-V

  1. Faulty ECT Sensor: The most common cause of this code is a defective ECT sensor that is not providing accurate temperature readings.
  2. Wiring Issues: Corroded, damaged, or loose wiring connections related to the ECT sensor can cause circuit range/performance problems.
  3. Connector Problems: Poor connections or corrosion in the ECT sensor connector can also trigger this code.
  4. ECM Malfunction: In some cases, a malfunctioning ECM may not be receiving correct signals from the ECT sensor, leading to this issue.
  5. Coolant Level: Low coolant levels or air pockets in the cooling system can also affect the ECT sensor's performance and trigger this code.

Symptoms of P0116 2018 Honda CR-V

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Poor Fuel Economy: A faulty ECT sensor can lead to incorrect fuel delivery, resulting in decreased fuel efficiency.
  3. Engine Overheating: If the ECT sensor provides inaccurate temperature readings, it can lead to engine overheating, potentially causing serious damage.
  4. Rough Idle: An improperly functioning ECT sensor can disrupt the engine idle, leading to a rough or unstable idle.
  5. Hard Starting: A malfunctioning ECT sensor may cause difficulty starting the engine, especially in cold conditions.

How to Fix P0116 2018 Honda CR-V

  1. Diagnostic Testing: Begin by using a scan tool to retrieve the DTC and perform diagnostic testing to verify the issue with the ECT sensor 1 circuit.
  2. Inspect Wiring and Connectors: Check the wiring harness and connectors related to the ECT sensor for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test ECT Sensor: Test the ECT sensor's resistance and compare the readings with manufacturer specifications to determine if it is faulty. Replace the sensor if needed.
  4. Clear Codes: After repairing the issue, clear the DTC and reset the ECM to see if the problem has been resolved.
  5. Road Test: Finally, road test the vehicle to ensure that the check engine light does not reappear and that the engine operates correctly.

Cost to Fix P0116 2018 Honda CR-V

The typical repair costs for addressing a P0116 code on a 2018 Honda CR-V can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of a new ECT sensor, wiring repairs, diagnostic testing, and labor charges. It is important to note that the actual repair costs may vary based on factors such as the location of the repair shop, the vehicle's make and model, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It is advisable to obtain a detailed estimate from a qualified mechanic or repair shop before proceeding with the repairs.

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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 P0116 2018 Honda CR-V Code

1. What are the common symptoms of an Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem (P0116) in a 2018 Honda CR-V?

The common symptoms include issues with engine performance, such as rough idling, poor fuel efficiency, and potential problems with the vehicle's cooling system.

2. What are the possible causes of the P0116 OBDII code in a 2018 Honda CR-V?

Possible causes of the P0116 code in a 2018 Honda CR-V include a faulty engine coolant temperature sensor, wiring issues in the sensor circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the P0116 code in my 2018 Honda CR-V?

Diagnosing the P0116 code involves using an OBDII scanner to retrieve the code, checking the coolant temperature sensor and its wiring for any signs of damage or corrosion, and testing the sensor's resistance and voltage to determine if it is functioning correctly.

4. Can I continue driving my 2018 Honda CR-V with the P0116 OBDII code?

It is not recommended to continue driving your vehicle with the P0116 code present, as it can lead to potential engine performance issues and affect overall vehicle reliability. It is best to address the issue promptly.

5. How can I repair the Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem in my 2018 Honda CR-V?

To repair the P0116 code in your 2018 Honda CR-V, you may need to replace the engine coolant temperature sensor, repair any damaged wiring in the sensor circuit, or reset the ECM to clear the code.

6. Is the P0116 OBDII code in a 2018 Honda CR-V a serious issue?

While the P0116 code may not cause immediate engine failure, it can lead to poor engine performance and potential damage if left unresolved. It is best to address the issue promptly to avoid further complications.

7. Can a DIY enthusiast fix the P0116 code in a 2018 Honda CR-V?

Depending on your skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the P0116 code by replacing the coolant temperature sensor or addressing wiring issues. However, if unsure, it's best to consult a professional mechanic.

8. Will resetting the OBDII code clear the P0116 issue in my 2018 Honda CR-V?

Resetting the OBDII code may temporarily clear the P0116 issue, but if the underlying problem with the engine coolant temperature sensor or circuit persists, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

9. How much does it cost to repair the P0116 OBDII code in a 2018 Honda CR-V?

The cost of repairing the P0116 code in a 2018 Honda CR-V can vary depending on the exact cause of the issue. It may involve replacing the coolant temperature sensor, repairing wiring, or addressing other related problems, so costs can range from moderate to higher amounts.

10. Can a faulty Engine Coolant Temperature Sensor affect the overall performance of a 2018 Honda CR-V?

Yes, a faulty Engine Coolant Temperature Sensor can affect the overall performance of a 2018 Honda CR-V by causing issues with fuel efficiency, engine timing, and cooling system operation. It is an essential component for proper engine function.

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