2014 Subaru BRZ Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functioning Radiator Fan in Your 2014 Subaru BRZ and How to Fix It

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
34% chance it's the
Fan Motor or Clutch
0%
28% chance it's the
Fan Relay or Fuse
0%
23% chance it's the
Temp Sensor or Fan Control Module
0%
15% chance it's
Something else
The most common reasons a 2014 Subaru BRZ radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor.
  • Fan Motor or Clutch: A faulty fan motor or a malfunctioning fan clutch can result in inadequate cooling, causing the engine to overheat.
  • Fan Relay or Fuse: A faulty fan relay or blown fuse can prevent the cooling fan from operating, leading to engine overheating.
  • Temp Sensor or Fan Control Module: A faulty temperature sensor or fan control module can cause the engine cooling fan to operate improperly, leading to overheating or inadequate engine cooling.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What steps should I take to diagnose the non-functioning radiator fan in my 2014 Subaru BRZ?

To effectively diagnose the non-functioning radiator fan in your 2014 Subaru BRZ, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by using an OBDII scanner to retrieve any trouble codes, such as P0483, which can provide valuable insights into the underlying issue. Next, inspect the cooling fan relay, as a malfunction here can prevent the fan from operating. If the relay appears functional, move on to examine the cooling fan control module, as this component is crucial for regulating fan activity. Testing the radiator fan itself is essential; if it fails to operate, it may need replacement. Additionally, inspect the wiring and connectors for any signs of damage or disconnection, as these can disrupt the electrical flow. Finally, assess the radiator fan motor, as a failure in this area can also lead to a non-functioning fan. By following this structured diagnostic approach, you can identify the root cause of the issue and take appropriate action to restore your vehicle's cooling system.

What are the common causes for the radiator fan not working in a 2014 Subaru BRZ?

When troubleshooting a non-functioning radiator fan in a 2014 Subaru BRZ, it's essential to consider several common problems that could be at play. One of the primary culprits is the fan assembly itself, which may be damaged or malfunctioning. Additionally, the fan clutch can fail, preventing the fan from engaging when necessary. Another critical component to examine is the coolant temperature sensor; if it is faulty, it may not signal the fan to turn on, leading to overheating issues. It's also important to check the electrical system, as a blown fuse or a bad relay can interrupt the power supply to the fan. Wiring issues, such as broken or frayed wires, can further complicate the situation. Low coolant levels can also affect the fan's operation, as the system may not reach the necessary temperature to activate the fan. Lastly, worn bearings in the electric fan can hinder its performance. By systematically investigating these potential issues, DIYers can effectively diagnose and resolve the radiator fan malfunction in their Subaru BRZ.

How urgent is it to fix the radiator fan in a 2014 Subaru BRZ to avoid overheating?

Fixing the radiator fan in your 2014 Subaru BRZ is not just a matter of convenience; it is a critical maintenance task that demands immediate attention to prevent severe engine damage. When the radiator fan fails, the engine is at risk of overheating due to inadequate airflow, which can lead to catastrophic failures and costly repairs. The fan plays a vital role in regulating engine temperature, especially during low-speed driving when natural airflow is insufficient. If you notice signs of overheating, such as the temperature gauge rising or steam from the engine bay, it is imperative to act quickly. Ignoring these symptoms can exacerbate the problem, leading to issues like warped cylinder heads or a blown head gasket. For DIY enthusiasts, understanding the urgency of this repair can save you from significant headaches down the road, ensuring your Subaru BRZ runs smoothly and efficiently. Addressing radiator fan issues promptly not only safeguards your vehicle's performance but also enhances your driving safety.

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2014 Subaru BRZ Radiator Fan Not Working: Causes & Repairs