P0528 - OBD Trouble Code

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Bewildered? Can’t comprehend the Error Code P0528? No worries! You’ve got our back. In order to make things simpler for you, here’s a helpful guide to get you started with the Error Code P0528. The generic OBD-II code P0528 alerts the driver about a malfunctioning fan speed sensor circuit. The cooling fan is an essential unit keeping the vehicle’s engine cool. As the speed of the vehicle increases, the radiator fan performs the job of cooling the engine by cooling the radiator fluid; at that point the cooling fan closes because it’s not required anymore. The Powertrain control module (PCM) turns to the Fan speed sensor (FSS) for controlling the speed of the cooling fan clutch. When the fan speed recorded fails to match the reference value, the vehicle sets the code P0528.

Many of the vehicles have a sensor installed at the end of the cooling fan that plays the role of detecting the movement during vehicle operation. The sensor functions to determine a few things. Firstly, it determines the fan running of the fan, whether it’s working on a fan clutch equipped vehicle. Next, it verifies the fan speed commanded by the Powertrain Control Module (PCM) or Engine Control Module (ECM) matching the actual fan speed detected on an electric fan equipped vehicle.

What causes this problem with the Fan Speed Sensor Circuit Range/Performance?

• A fault in the fan clutch or electric fan.
• Unsound Fan Speed Sensor.
• The Cooling fan sensor harness or connector having an open circuit.
• Defective PCM/ECM.
• Distorted cooling fan speed sensor.
• A broken or damaged Accessory belt.

1. Engine Coolant Temperature Sensor - Coolant Temperature Sensor is a sensor used to monitor the temperature of the Engine’ coolant. So, to maintain an optimum temperature, the coolant temperature sensor should be changed immediately.
2. Fan Clutch - Having problems with the Fan clutch? Don’t you worry, Parts Avatar has it all. A faulty Fan Clutch could end up being the major cause behind the Error code P0528.
3. Cooling Fan Speed Sensor - in order to maintain proper Powertrain cooling fan requirements and to further avoid the complications caused by the Error Code P0528, the damaged Cooling fan speed sensor should be changed instantaneously. 
4. Fan Speed Sensor Wire - Facing the error code P0528? An inferior quality Fan Speed Sensor Wire can always be hazardous for the system also it is one of the primal causes behind the occurring of the error code P0528. Tune into Parts Avatar for high quality Fan Speed Sensor Wires at budget friendly prices.
5. Fan Speed Sensor Connector - Get your Error Code fixed instantly with a new Fan Speed Connector Sensor. Parts Avatar right place that provides the best fan speed sensor connectors across the country.
6. Cooling Fan - love the roads? But tired of the Error Code P0528 popping again and again? Well, we have got you covered! Change your distorted cooling fan now from Parts Avatar available at economical prices right at your doorstep.
7. Cooling Fan Motor - A damaged Cooling Fan Motor can end up being the chief host inviting the Error Code P0528. So, replacing one can be one of the wisest decisions to avoid a problematic system.
8. Cooling Fan Relay - Cooling Fan relay not working? So, a damaged one should instantly be replaced to combat the Error Code P0528. Don’t know where to look for? Parts Avatar provides superior quality cooling fan relays just at the prices you have been looking for.
9. Fan Belt - Facing the Error P0528? Well, get that fixed with a new fan Belt available at Parts Avatar online at the best prices.
10. Powertrain Control Module - abbreviated PCM; this is an integral control unit. So a defective one should be changed immediately.
11. Engine Control Module - the ECM also called as the brain of the Engine should be taken care of. A faulty in e should be restored/repaired as soon as possible to overcome the problems caused by the Error Code P0528.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0528 here:

Common Symptoms

• Engine Light illuminated.
• At times the engine heats up excessively.

Want to correct the Trouble Code P0528? Read these points mentioned below:

• Fan clutch installed - inspect visually if the fan is spinning when the engine is working. If the fan is not working properly, it may be an indication of a damaged accessory belt or a failed fan clutch assembly. In this case, change accessory belt or fan clutch immediately.
• Electrical fan decked - make sure the fan is turning off and on when the PCM/ECM commands the fan to operate when the engine reaches specific temperatures. The fan may be connected to the air conditioner, and both may be turned on simultaneously. If the fan is not operating, inspect the electrical harness connector, fuses or relays that are responsible for the functioning of the fan. Another option of turning on fans is by using an on/off relay activated with the help of Pulse Width Modulation (PWM) with varying speed fans. Fix the electrical fan circuit, and supplant electric fan assembly, fan motor, or driver module.
• Cooling fan sensor harness - look out for any loose connections and broken wiring that may have come in contact with the cooling fan. Turn off the cooling fan sensor connector and connector at PCM and the resistance needs to be checked using a Digital Volt Ohm Meter (DVOM) with leads at every end of the signal wire. Some vehicle manufacturers have issued a Technical Service Bulletin (TSB) for reinstitution of the sensor wiring equipment. Replace or fix equipment.
• Cooling fan speed sensor - the harness connector should be disconnected from the sensor for continuity with the help of a DVOM set to ohms scale between the power, ground and signal wires. Also, there shouldn’t be any resistance present between the signal wire, the ground or power wires. And if there is any resistance present, it may be an internal short.
• The signal wires should be tested during actual fan operating by back probing the harness connector using a DVOM set to volts scale, or with a graphing multimeter with the positive lead on the signal wire and the negative lead to a known good ground, because the hall effect sensor used operates by generating a magnetic field that changes voltage while the fan is spinning. As when the fan speed rises, the voltage should also rise. Change the cooling fan speed sensor in the event of a failed part.
• There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade Engine Coolant Temperature Sensor, Fan Clutch, Cooling Fan Speed Sensor, Fan Speed Sensor Wire, Fan Speed Sensor Connector, Cooling Fan, Cooling Fan Motor, Cooling Fan Relay, Fan Belt, Powertrain Control Module, Engine Control Module, Blown Fuse and a lot more for our precious customers.

First and foremost, one should begin diagnosing the source problem by checking the DTC (Diagnostic Trouble Codes) with the help of a scanner. If other codes come into view, each one should be inspected and repaired in the order in which they occurred. Subsequently, the technician should check to see if the cooling fan is suffering from mechanical binding by rotating it manually when the key is off. If the results of this test turn out to be fine, the cooling fan clutch operation will be checked. This should be performed while the engine is running and the heater is off, also monitoring the PCM for RPMs. if required, the mechanic would check the resistance of the cooling fan clutch actuator valve solenoid between the cooling fan connectors along with the solenoid’s voltage. Other checks that could be performed:

• Fault in the Fan clutch valve circuit.
• Voltage of the Fan speed sensor.
• A possible open in the fan speed sensor harness.
• A possible open in the fan speed sensor circuit.
• Likely an FSS voltage short.
• The functioning of the PCM, if required.

Common Mistakes When Diagnosing the P0528 Code

Wishing to combat the Error Code P0528? Here listed are a few mistakes that need to be taken care of to avoid or overcome the OBD Error Code P0528 –

If the cooling fan motor is changed without performing the remaining inspections, the problem is likely to be unresolved. Cooling fan relays have been changed in a number of latest model vehicles and are often the suspect in a fan speed sensor circuit fault.