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
– 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
– Engine overheating
P0528 FORD Description
The PCM has detected an incorrect input from the Fan Speed Sensor (FSS)
FORD Technical Service Bulletins for P0528 code
2008 FORD F-250 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2008 FORD F-350 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2008 FORD F-450 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2008 FORD F-550 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2008 FORD F-650 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2008 FORD F-750 SD ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
2003 FORD EXCURSION POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2003 FORD F SUPER DUTY POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)