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Engine-Codes – Honda – P1116 2009 Honda Accord

P1116 2009 Honda Accord Code - Engine Coolant Temperature Sensor Performance Problem

Quick Answer

The P1116 code on a 2009 Honda Accord indicates a problem with the Engine Coolant Temperature (ECT) sensor's performance. Common causes include Faulty ECT sensor, Wiring or connector issues in the ECT sensor circuit, Coolant leaks affecting the sensor's 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
P1116 2009 Honda Accord indicates Engine Coolant Temperature Sensor Performance Problem.
Common causes
Common causes include Faulty ECT sensor, Wiring or connector issues in the ECT sensor circuit, Coolant leaks affecting the sensor's 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 16, 2024
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Code P1116 2009 Honda Accord Description

The P1116 code on a 2009 Honda Accord indicates a problem with the Engine Coolant Temperature (ECT) sensor's performance. The ECT sensor is a crucial component that monitors 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, ensuring optimal engine performance and efficiency.

OBDII Code P1116 2009 Honda Accord - Engine Coolant Temperature Sensor Performance Problem
P1116 2009 Honda Accord Code - Engine Coolant Temperature Sensor Performance Problem

Common Causes of P1116 2009 Honda Accord

  1. Faulty ECT sensor.
  2. Wiring or connector issues in the ECT sensor circuit.
  3. Coolant leaks affecting the sensor's readings.
  4. Corrosion or buildup on the sensor affecting its performance.
  5. ECM software or hardware issues.

Symptoms of P1116 2009 Honda Accord

  1. Check Engine Light illuminated on the dashboard.
  2. Fluctuating or inaccurate temperature gauge readings.
  3. Engine running too rich or too lean.
  4. Rough idling or stalling.
  5. Decreased fuel efficiency.

How to Fix P1116 2009 Honda Accord

  1. Begin by locating the ECT sensor on the engine (consult the vehicle's service manual for guidance).
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the ECT sensor using a multimeter to check for proper resistance values.
  4. If the sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor.
  5. Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1116 2009 Honda Accord

The cost of repairing a P1116 code on a 2009 Honda Accord can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing an ECT sensor can cost between $50 and $150 for the part, with additional labor costs ranging from $100 to $200. Overall, you can expect to pay anywhere from $150 to $350 for this repair. Keep in mind that prices may differ based on location, the shop's hourly rates, and any additional diagnostic or repair work required. It's recommended to obtain quotes from 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 P1116 2009 Honda Accord Code

1. What are the common symptoms of OBDII code P1116 in a 2009 Honda Accord?

The common symptoms of OBDII code P1116 in a 2009 Honda Accord include issues with engine performance, overheating, inaccurate temperature readings on the dashboard, and the check engine light turning on.

2. What could cause the OBDII code P1116 in a 2009 Honda Accord?

The OBDII code P1116 in a 2009 Honda Accord is often caused by a faulty engine coolant temperature sensor, wiring issues, or a problem with the engine control module (ECM).

3. How can I diagnose the OBDII code P1116 in my 2009 Honda Accord?

To diagnose the OBDII code P1116 in a 2009 Honda Accord, you can use an OBDII scanner to retrieve the specific code. You can also check the engine coolant temperature sensor and its wiring for any visible damage.

4. Can I still drive my 2009 Honda Accord with the OBDII code P1116?

It is not recommended to drive your 2009 Honda Accord with the OBDII code P1116, as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

5. What is the repair procedure for OBDII code P1116 in a 2009 Honda Accord?

The repair procedure for OBDII code P1116 in a 2009 Honda Accord typically involves replacing the faulty engine coolant temperature sensor and addressing any wiring issues. It may also require resetting the ECM.

6. How much does it cost to fix the OBDII code P1116 in a 2009 Honda Accord?

The cost to fix the OBDII code P1116 in a 2009 Honda Accord can vary depending on the labor rates and the price of parts. On average, the repair cost can range from $100 to $300.

7. Can a DIY enthusiast fix the OBDII code P1116 in a 2009 Honda Accord?

A DIY enthusiast with the necessary tools and knowledge can attempt to fix the OBDII code P1116 in a 2009 Honda Accord by replacing the engine coolant temperature sensor and checking the wiring for any issues.

8. Will resetting the check engine light resolve the OBDII code P1116 in a 2009 Honda Accord?

Resetting the check engine light may temporarily turn it off, but it will not resolve the underlying issue causing the OBDII code P1116 in a 2009 Honda Accord. It is essential to diagnose and fix the problem to prevent further issues.

9. How long does it take to repair the OBDII code P1116 in a 2009 Honda Accord?

The repair time for the OBDII code P1116 in a 2009 Honda Accord can typically range from 1 to 2 hours, depending on the complexity of the issue and the accessibility of the engine coolant temperature sensor.

10. Is it necessary to clear the OBDII code P1116 after fixing the issue in a 2009 Honda Accord?

After fixing the issue causing the OBDII code P1116 in a 2009 Honda Accord, it is recommended to clear the code using an OBDII scanner to reset the check engine light and ensure that the repair was successful.

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