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P0527 is a diagnostic trouble code (DTC) for "Fan Speed Sensor Circuit Range or Performance Issue". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P0527 diagnostic trouble code is an indication that there is a range or performance issue with the fan speed sensor circuit.
Related Trouble Codes:
Cooling fans are used to cool the engine temperature and the A/C system, and are controlled by the Powertrain Control Module (PCM). Fan speed sensors are used in vehicles for two purposes. Vehicles with a fan clutch use the fan speed sensor to make sure the fan is running. Vehicles with an electric fan use the fan speed sensor to ensure the fan speed coincides with the fan speed that the Powertrain Control Module (PCM) requires. The Powertrain Control Module (PCM) sets the required fan speed. If the PCM receives a signal from the fan speed sensor indicating a fan speed that does not coincide with the required speed, the P0527 diagnostic trouble code will be stored and the check engine light will come on.
The most common mistake made when diagnosing the P0527 trouble code is replacing the cooling fan assembly when the problem is a fault relay, damaged wiring, a bad fuse, or damaged wiring. It is important to inspect all components before replacing the cooling fan assembly.
A diagnostic trouble code is normally considered serious when it causes driveability issues or a change in performance. The P0527 diagnostic trouble code causes driveability issues and is considered very serious if the car is overheating. This should be diagnosed and repaired in a timely manner.
Always complete a thorough inspection of the sensors, fuses, and wiring first. These components are often missed or overlooked during the diagnosis process and leads to multiple failures and the P0527 diagnostic trouble code returning.
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