Engine-CodesGeneric – P2184

P2184 Code - Engine Coolant Temperature Sensor 2 Circuit Low

Quick Answer

The P2184 code indicates that there is a problem with the Engine Coolant Temperature Sensor 2 Circuit, specifically that the sensor is reading a lower temperature than expected. Common causes include Faulty Engine Coolant Temperature Sensor 2, Wiring or connector issues related to the sensor, Coolant leaks 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
P2184 indicates Engine Coolant Temperature Sensor 2 Circuit Low.
Common causes
Common causes include Faulty Engine Coolant Temperature Sensor 2, Wiring or connector issues related to the sensor, Coolant leaks 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 11, 2024
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Code P2184 Description

The P2184 code indicates that there is a problem with the Engine Coolant Temperature Sensor 2 Circuit, specifically that the sensor is reading a lower temperature than expected. This sensor is crucial for the engine control module (ECM) to accurately determine the temperature of the engine coolant. The ECM uses this information to adjust fuel injection, ignition timing, and other engine parameters to ensure optimal performance and fuel efficiency.

OBDII Code P2184 - Engine Coolant Temperature Sensor 2 Circuit Low
P2184 Code - Engine Coolant Temperature Sensor 2 Circuit Low

Common Causes of P2184

  1. Faulty Engine Coolant Temperature Sensor 2
  2. Wiring or connector issues related to the sensor
  3. Coolant leaks affecting sensor readings
  4. ECM software issues
  5. Coolant temperature sensor circuit shorted to ground

Symptoms of P2184

  1. Check Engine Light is illuminated
  2. Decreased fuel efficiency
  3. Engine running rough or stalling
  4. Engine overheating
  5. Poor acceleration

How to Fix P2184

  1. Diagnose the issue by using a scan tool to check for the P2184 code and perform a visual inspection of the sensor and wiring.
  2. Replace the Engine Coolant Temperature Sensor 2 if it is found to be faulty.
  3. Check and repair any damaged wiring or connectors related to the sensor.
  4. Clear the fault code from the ECM and test drive the vehicle to ensure the issue has been resolved.
  5. Perform a final check to ensure the engine coolant temperature is now being accurately read by the sensor.

Cost to Fix P2184

The cost of repairing a P2184 code related to the Engine Coolant Temperature Sensor 2 Circuit Low can vary depending on the make and model of the vehicle, the location of the sensor, and the labor rates of the repair shop. Typically, the cost of replacing the sensor itself can range from $50 to $150, while the total repair cost including parts and labor can be anywhere from $150 to $300. It's important to consult with a trusted mechanic or auto repair shop to get an accurate estimate for your specific vehicle.

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Code P2184 Information for Specific Makes

  • P2184 Acura — Engine Coolant Temperature Sensor 2 Circuit Low
  • P2184 Dodge — Engine Coolant Temperature Sensor 2 Circuit Low
  • P2184 Ford — Engine Coolant Temperature Sensor 2 Circuit Low
  • P2184 Honda — Engine Coolant Temperature Sensor 2 Circuit Low
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.

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