Engine-CodesGeneric – P2185

P2185 Code - Engine Coolant Temperature Sensor 2 Circuit High

Quick Answer

The P2185 code indicates that there is a problem with the Engine Coolant Temperature Sensor 2 circuit being too high. Common causes include Faulty Engine Coolant Temperature Sensor 2, Wiring or connection issues in the sensor circuit, Coolant leakage affecting sensor 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
P2185 indicates Engine Coolant Temperature Sensor 2 Circuit High.
Common causes
Common causes include Faulty Engine Coolant Temperature Sensor 2, Wiring or connection issues in the sensor circuit, Coolant leakage affecting sensor 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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P2185 Description

The P2185 code indicates that there is a problem with the Engine Coolant Temperature Sensor 2 circuit being too high. This sensor is responsible for measuring the temperature of the engine coolant and sending this information to the engine control module. A high circuit voltage typically indicates that the sensor is reading a higher temperature than the actual coolant temperature, which can lead to issues with engine performance and efficiency.

OBDII Code P2185 - Engine Coolant Temperature Sensor 2 Circuit High
P2185 Code - Engine Coolant Temperature Sensor 2 Circuit High

Common Causes of P2185

  1. Faulty Engine Coolant Temperature Sensor 2
  2. Wiring or connection issues in the sensor circuit
  3. Coolant leakage affecting sensor readings
  4. Corrosion or damage to sensor connectors
  5. Issues with the engine control module

Symptoms of P2185

  1. Check Engine Light is illuminated
  2. Engine overheating
  3. Poor fuel economy
  4. Rough idling
  5. Engine misfires

How to Fix P2185

  1. Begin by diagnosing the issue by using a scan tool to read the code and check the live data from the Engine Coolant Temperature Sensor 2.
  2. Inspect the sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the coolant level and quality, and address any leaks that may be affecting the sensor readings.
  4. Clear the code and reset the engine control module to see if the issue has been resolved.
  5. Test drive the vehicle to ensure that the repair was successful and that the code does not reappear.

Cost to Fix P2185

The typical repair costs for addressing the P2185 code related to the Engine Coolant Temperature Sensor 2 circuit high can range from $100 to $300, depending on the cost of the sensor, labor rates, and any additional parts needed. It's important to note that prices can vary based on the vehicle make and model, location, and the specific diagnosis and repair process required. It is recommended to consult with a local auto repair shop for a more accurate estimate.

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Code P2185 Information for Specific Makes

  • P2185 Acura — Engine Coolant Temperature Sensor 2 Circuit High Voltage
  • P2185 Audi — Engine Coolant Temperature Sensor 2 Circuit High
  • P2185 BMW — Coolant Temperature Sensor At Radiator Outlet Signal High
  • P2185 Chrysler — Engine Coolant Temperature Sensor 2 Circuit High
  • P2185 Dodge — Engine Coolant Temperature Sensor 2 Circuit High
  • P2185 Ford — Engine Coolant Temperature Sensor 2 Circuit High
  • P2185 Honda — Engine Coolant Temperature Sensor 2 Circuit High Voltage
  • P2185 Volkswagen — Engine Coolant Temperature Sensor 2 Circuit High
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 Code

1. What are the common symptoms of OBDII code P2185?

- Common symptoms include the Check Engine light coming on, engine overheating, poor fuel economy, and potential issues with the vehicle's heater.

2. What does the OBDII code P2185 indicate?

- OBDII code P2185 indicates a problem with the Engine Coolant Temperature Sensor 2 Circuit, specifically a high voltage condition.

3. What are the possible causes of OBDII code P2185?

- Possible causes include a faulty Engine Coolant Temperature Sensor, a wiring issue in the sensor circuit, a malfunctioning thermostat, or a problem with the vehicle's cooling system.

4. How can I diagnose the cause of OBDII code P2185?

- Diagnosing the cause involves checking the coolant level and condition, testing the Engine Coolant Temperature Sensor with a multimeter, inspecting the sensor wiring for damage, and ensuring the thermostat is functioning correctly.

5. Can I continue driving with OBDII code P2185 present?

- It is generally not recommended to continue driving with this code, as it can lead to engine overheating and potential damage. It's best to address the issue promptly.

6. How can I repair OBDII code P2185?

- Repairing the code may involve replacing the Engine Coolant Temperature Sensor, repairing any damaged wiring, replacing the thermostat if necessary, or addressing any cooling system issues.

7. Is it possible to reset OBDII code P2185 without fixing the underlying issue?

- While clearing the code temporarily may be possible using an OBDII scanner, the Check Engine light is likely to come back on if the underlying issue is not resolved.

8. How important is the Engine Coolant Temperature Sensor for vehicle operation?

- The Engine Coolant Temperature Sensor is crucial for monitoring the engine's temperature and ensuring optimal performance. Ignoring issues with this sensor can lead to overheating and engine damage.

9. Can a DIY enthusiast fix OBDII code P2185 at home?

- Depending on their skill level, a DIY enthusiast may be able to diagnose and repair OBDII code P2185 at home by following repair guides and using basic tools.

10. How long does it typically take to repair OBDII code P2185?

- The repair time for OBDII code P2185 can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

Discuss the causes and fixes for P2185 OBDII Code

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