AutoCodesHonda – P1116 2008 Honda Accord

P1116 2008 Honda Accord Code - Engine Coolant Temperature Sensor Performance Problem

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor harness is open or shorted. 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 2008 Honda Accord indicates Engine Coolant Temperature Sensor Performance Problem.
Common causes
Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor harness is open or shorted.
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 3,621
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 22, 2019
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Code P1116 2008 Honda Accord Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
OBDII Code P1116 2008 Honda Accord - Engine Coolant Temperature Sensor Performance Problem - AutoCodes.com
P1116 2008 Honda Accord Code - Engine Coolant Temperature Sensor Performance Problem

What are the Possible Causes of the DTC P1116 2008 Honda Accord?

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
  • Faulty engine coolant thermostat

How to Fix the DTC P1116 2008 Honda Accord?

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 P1116 2008 Honda Accord 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 P1116 2008 Honda Accord code?

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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 2008 Honda Accord Code

1. What does the OBDII code P1116 mean on a 2008 Honda Accord?

P1116 indicates an Engine Coolant Temperature (ECT) Sensor Performance Problem, meaning the sensor is not reading or transmitting data correctly.

2. What are the symptoms of a P1116 code in a 2008 Honda Accord?

Symptoms may include poor fuel economy, engine overheating, erratic temperature gauge readings, or the Check Engine Light turning on.

3. What causes the P1116 code to appear?

Common causes include a faulty ECT sensor, damaged wiring or connectors, low coolant levels, or a malfunctioning thermostat.

4. How do I diagnose the P1116 code on a 2008 Honda Accord?

Start by checking the coolant level, inspecting the ECT sensor wiring for damage, and testing the sensor with a multimeter to ensure it’s functioning properly.

5. Can low coolant levels trigger the P1116 code?

Yes, low coolant levels can cause inaccurate readings from the ECT sensor, leading to the P1116 code.

6. Is it safe to drive with a P1116 code on a 2008 Honda Accord?

Driving with this code is not recommended, as it can lead to engine overheating or other performance issues if left unaddressed.

7. How do I fix the P1116 code on my 2008 Honda Accord?

Repairs may include replacing the ECT sensor, fixing damaged wiring, refilling coolant, or replacing the thermostat if it's stuck.

8. How much does it cost to repair a P1116 code on a 2008 Honda Accord?

Replacing the ECT sensor typically costs $50–$150 for parts and labor, though costs may vary depending on the issue’s root cause.

9. Can a faulty thermostat cause the P1116 code?

Yes, a malfunctioning thermostat that doesn’t open or close properly can affect coolant temperature readings and trigger the P1116 code.

10. How can I prevent the P1116 code from occurring?

Regularly check coolant levels, inspect the cooling system for leaks, and replace the ECT sensor or thermostat as recommended by the manufacturer.

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