2015 INFINITI Q60 Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functional Radiator Fan in Your 2015 INFINITI Q60 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 2015 INFINITI Q60 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 result in incorrect readings, causing the engine to overheat or the cooling fan to operate improperly.
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.

How much does it cost to fix a 2015 INFINITI Q60 radiator fan isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Over time serpentine belts stretch, crack, and the ribs that ride on the accessory pulleys being to wear smooth. A squealing noise that increases with engine speed or as engine driven accessories are turned on may be noted. The noise is caused by the belt slipping on the pulleys, insufficiently driving them. Ineffective air conditioning, a battery warning light, or intermittent power steering assist can result from this.

»MORE: Symptoms of a bad serpentine belt

The bad thermostat can cause two different sets of problems, depending on whether it's stuck open or stuck closed.

A thermostat that is stuck open can cause the engine to run colder than normal and turn on the check engine light. It may also cause poor fuel mileage and the heater to blow cool air.

A thermostat that is stuck closed will cause the vehicle to overheat. If a new thermostat doesn't resolve engine temperature problems, the cooling system needs to be checked for other issues.

» LEARN MORE: Signs of a bad thermostat, and how to fix it

When the engine coolant temperature sensor fails, it will send inaccurate information to the vehicle’s computer, causing the computer to react to false operating conditions. This will cause the engine to consume more fuel than normal, depleting fuel mileage, and causing black, sooty smoke from the engine under moderate to heavy acceleration. The check engine light will illuminate, and on-board diagnostic trouble codes may be stored for exhaust and emission system failure, fuel delivery system failure, and engine cooling system failure. Overheating may also occur, as the coolant sensor may be leaking fluid out of the engine, creating a an air pocket in the system.

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should subside once the vehicle begins moving again.

Additionally, the air conditioner typically won't blow as cold. This is because the air from the radiator fans also blows across the air conditioning condenser, so when the fans fail, both systems suffer.

You'll also usually see the check engine light and notice a drop in fuel economy. It's possible the fan will start making noise if it's failing, as well.

What steps should I take to diagnose the non-functioning radiator fan in my 2015 INFINITI Q60?

To effectively diagnose a non-functioning radiator fan in your 2015 INFINITI Q60, begin with the simplest checks to avoid unnecessary complications. Start by inspecting the fuse associated with the radiator fan; a blown fuse is a common and easily fixable issue that can halt fan operation. If the fuse is intact, proceed to examine the relay, which controls the power supply to the fan. A malfunctioning relay may require replacement to restore functionality. Next, test the fan motor directly by applying power to it; if it fails to operate, the motor itself may need replacement. Additionally, check the temperature sensor, as a faulty sensor can prevent the fan from activating when needed. Ensure that all wiring and connections are secure and undamaged, as poor connections can disrupt power flow. Finally, consider using an OBD-II scanner to identify any error codes that may indicate specific problems within the cooling system. By following this structured approach, you can efficiently diagnose the issue and determine the necessary repairs for your radiator fan.

What are the common causes for the radiator fan not working in a 2015 INFINITI Q60?

When diagnosing why the radiator fan in a 2015 INFINITI Q60 is not functioning, it's essential to consider several common problems that could be at play. A faulty fan motor is often the primary culprit, as it can fail over time and may require replacement to restore proper operation. Additionally, a blown fuse in the fan circuit can disrupt power to the fan, so checking the fuses is a crucial step in troubleshooting. Another potential issue is a malfunctioning temperature sensor, which may fail to signal the fan to activate when the engine reaches a certain temperature. Inspecting the wiring for any damage or loose connections is also vital, as electrical issues can prevent the fan from receiving the necessary power. Lastly, low coolant levels can impact the fan's performance, so ensuring that the coolant is at the appropriate level is an important part of the diagnostic process. By systematically addressing these common causes, you can effectively troubleshoot and potentially resolve the radiator fan issue in your vehicle.

How urgent is it to address the non-working radiator fan in a 2015 INFINITI Q60?

Addressing a non-working radiator fan in your 2015 INFINITI Q60 is not just a matter of convenience; it is a critical safety concern that requires immediate attention. The radiator fan plays a vital role in regulating engine temperature by dissipating heat from the radiator. When this fan fails, the risk of engine overheating significantly increases, which can lead to catastrophic engine damage if left unresolved. Overheating can cause the engine to shut down unexpectedly, potentially stranding you in unsafe situations and leading to costly repairs. Moreover, neglecting the fan issue can adversely affect other components of the cooling system, compounding the problem and escalating repair costs. Therefore, it is essential to diagnose and fix a non-working radiator fan promptly to maintain your vehicle's performance and ensure your safety on the road.

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2015 INFINITI Q60 Radiator Fan Not Working | RepairPal