DTC P0528: Fan Speed Sensor Circuit No Signal

P0528 - FAN SPEED SENSOR CIRCUIT NO SIGNAL

Description: The PCM uses the fan speed sensor (FSS) input to monitor the cooling fan clutch speed. This DTC sets if the indicated fan speed is lower than the calibrated value during the key ON engine running (KOER) self-test.
Possible Causes: FSS VPWR circuit open FSS PWRGND circuit open FSS circuit open FSS circuit short to voltage or ground Damaged FSS Damaged PCM
Diagnostic Aids: Visually inspect the cooling fan clutch for damage or obstruction.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST HV .