AutoCodes – Honda – P0116 2021 Honda CR-V

P0116 2021 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem

Quick Answer

The Powertrain Control Module (PCM) supplies voltage to the engine coolant temperature signal circuit (about 5 V) through a pull-up resistor. Common causes include Faulty Engine Coolant Temperature (ECT) Sensor 1, Engine Coolant Temperature Sensor 1 harness is open or shorted, Engine Coolant Temperature Sensor 1 circuit poor electrical connection. 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 2021 Honda CR-V indicates Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem.
Common causes: Common causes include Faulty Engine Coolant Temperature (ECT) Sensor 1, Engine Coolant Temperature Sensor 1 harness is open or shorted, Engine Coolant Temperature Sensor 1 circuit poor electrical connection.
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.

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Code Popularity 197

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 Jul 31, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0116 2021 Honda CR-V Description

The Powertrain Control Module (PCM) supplies voltage to the engine coolant temperature signal circuit (about 5 V) through a pull-up resistor. As the engine coolant cools, the Engine Coolant Temperature (ECT) Sensor 1 resistance increases and the PCM detects a high signal voltage. As the engine coolant warms, the ECT Sensor 1 resistance decreases, and the PCM detects a low signal voltage. If the ECT Sensor 1 output voltage does not reach a set temperature after starting the engine and driving at a set time, or when the difference between the ECT Sensor 1 output voltage while driving and the output voltage of ECT Sensor 1 after the engine has been stopped a certain length of time does not change a certain amount, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0116 2021 Honda CR-V - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem - AutoCodes.com — P0116 2021 Honda CR-V Code - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P0116 2021 Honda CR-V?

Faulty Engine Coolant Temperature (ECT) Sensor 1
Engine Coolant Temperature Sensor 1 harness is open or shorted
Engine Coolant Temperature Sensor 1 circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0116 2021 Honda CR-V?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0116 2021 Honda CR-V 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 P0116 2021 Honda CR-V code?

Need more information on how to fix the P0116 2021 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0116 2021 Honda CR-V 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 P0116 2021 Honda CR-V Code

1. What are the common symptoms of OBDII code P0116 in a 2021 Honda CR-V?

- The common symptoms include engine overheating, rough idling, poor fuel economy, and potential stalling.

2. What causes the OBDII code P0116 in a 2021 Honda CR-V?

- The code P0116 is typically triggered by a faulty engine coolant temperature sensor, wiring issues, low coolant levels, or a malfunctioning cooling system.

3. How can I diagnose the Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem in my 2021 Honda CR-V?

- You can diagnose the issue by using an OBDII scanner to read the code, inspecting the coolant sensor and its wiring for damage, and checking the coolant level and system for proper functioning.

4. Can driving with OBDII code P0116 in my 2021 Honda CR-V cause further damage?

- Driving with P0116 could potentially cause engine damage due to overheating, so it is recommended to address the issue promptly to prevent any serious consequences.

5. How do I repair OBDII code P0116 in my 2021 Honda CR-V?

- The repair typically involves replacing the engine coolant temperature sensor, fixing any wiring issues, ensuring the cooling system is functioning correctly, and clearing the trouble code with an OBDII scanner.

6. Can I reset the OBDII code P0116 in my 2021 Honda CR-V by disconnecting the battery?

- While disconnecting the battery may reset the code temporarily, it is essential to address the underlying issue causing P0116 to prevent it from reoccurring.

7. Is it safe to drive my 2021 Honda CR-V with the OBDII code P0116 if the engine is not overheating?

- It is not recommended to drive the vehicle with a P0116 code, as it can lead to potential engine issues, even if the engine is not currently overheating.

8. How much does it cost to fix the OBDII code P0116 in a 2021 Honda CR-V?

- The cost of fixing P0116 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast repair the OBDII code P0116 in a 2021 Honda CR-V?

- Depending on your experience and tools, replacing the engine coolant temperature sensor and checking the wiring can be a DIY-friendly repair for P0116 in a 2021 Honda CR-V.

10. Will OBDII code P0116 cause my 2021 Honda CR-V to fail an emissions test?

- Yes, unresolved OBDII code P0116 can cause your 2021 Honda CR-V to fail an emissions test due to its impact on engine performance and emission control systems.