AutoCodes – Honda – P2185 2008 Honda Accord

P2185 2008 Honda Accord Code - Engine Coolant Temperature Sensor 2 Circuit High Voltage

Quick Answer

Engine Coolant Temperature (ECT) sensor 2 is a thermistor attached to the radiator. Common causes include Low coolant level, Faulty Engine Coolant Temperature Sensor, Stuck or leaking thermostat. 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: P2185 2008 Honda Accord indicates Engine Coolant Temperature Sensor 2 Circuit High Voltage.
Common causes: Common causes include Low coolant level, Faulty Engine Coolant Temperature Sensor, Stuck or leaking thermostat.
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 25,327

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2185 2008 Honda Accord Description

Engine Coolant Temperature (ECT) sensor 2 is a thermistor attached to the radiator. The Powertrain Control Module (PCM) applies voltage (about 5 V) to the ECT2 signal circuit through a pull up resistor. As the engine coolant temperature cools, ECT sensor 2 resistance increases, and the PCM detects a high signal voltage. As the engine coolant warms, the sensor resistance decreases, and the PCM detects a low ECT2 signal voltage. If the ECT sensor 2 output voltage is less than a set value when the engine coolant temperature is high, the PCM detects a malfunction and a DTC is stored.

OBDII Code P2185 2008 Honda Accord - Engine Coolant Temperature Sensor 2 Circuit High Voltage - AutoCodes.com — P2185 2008 Honda Accord Code - Engine Coolant Temperature Sensor 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2185 2008 Honda Accord?

Low coolant level
Faulty Engine Coolant Temperature Sensor
Stuck or leaking thermostat
Engine Coolant Temperature Sensor harness is open or shorted
Engine Coolant Temperature Sensor circuit poor electrical connection

How to Fix the DTC P2185 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 P2185 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 P2185 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 P2185 2008 Honda Accord Code

1. What does OBDII code P2185 on a 2008 Honda Accord indicate?

The code P2185 points to a problem with the Engine Coolant Temperature Sensor 2 Circuit High Voltage.

2. What are the common symptoms of a P2185 trouble code in a 2008 Honda Accord?

Common symptoms include the engine overheating, poor fuel economy, and the check engine light illuminating on the dashboard.

3. What are the possible causes of a P2185 trouble code in a 2008 Honda Accord?

Potential causes of this code include a faulty Engine Coolant Temperature Sensor, wiring issues, a corroded connector, or a problem with the engine control module.

4. How can I diagnose a P2185 code on my 2008 Honda Accord?

Diagnosing a P2185 code typically involves checking the coolant temperature sensor's resistance, inspecting the wiring and connectors for any damage, and verifying that the sensor is sending accurate data to the engine control module.

5. How can I repair a P2185 trouble code on a 2008 Honda Accord?

To repair a P2185 code, you may need to replace the Engine Coolant Temperature Sensor, repair any damaged wiring or connectors, or reset the engine control module after fixing the issue.

6. Can a P2185 code be triggered by a simple sensor malfunction?

Yes, a P2185 code can be triggered by a malfunctioning Engine Coolant Temperature Sensor. It is recommended to start by checking and potentially replacing this sensor.

7. Are there any DIY tips for addressing a P2185 trouble code in a 2008 Honda Accord?

If you are comfortable with basic car repairs, you can attempt to replace the Engine Coolant Temperature Sensor yourself. However, if you are unsure, it's best to consult a professional mechanic.

8. Will driving with a P2185 trouble code in a 2008 Honda Accord cause further damage to the vehicle?

Continuing to drive with a P2185 trouble code may lead to engine overheating and potential damage to components. It is advisable to address the issue promptly to prevent any further damage.

9. How long does it typically take to repair a P2185 trouble code on a 2008 Honda Accord?

The time taken to repair a P2185 code can vary depending on the exact cause of the issue and the complexity of the repair. It may take anywhere from 30 minutes to a few hours to complete the repair.

10. Can a P2185 code on a 2008 Honda Accord be reset without fixing the underlying issue?

While you can clear the trouble code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring. Simply resetting the code without fixing the issue will not solve the underlying problem.