Possible causes

– Faulty Fan Speed Sensor
– Fan Speed Sensor harness is open or shorted
– Fan Speed Sensor circuit poor electrical connection
– Faulty fan clutch
– Faulty PCM

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Engine overheating

P0528 Description

The PCM has detected an incorrect input from the Fan Speed Sensor (FSS)

P0528 Information for specific makes

P0528 DODGE
P0528 FORD