Technical Definition:
Fan Speed Sensor Circuit No Signal
Trouble Code: P0528
Address: 0x0528
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Address: 0x0528
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:
Possible Causes:
- Faulty fan clutch or electric fan
- Open circuit in cooling fan sensor harness or connector
- Faulty PCM/ECM
- Faulty cooling fan speed sensor
- Accessory belt broken
Possible Symptoms:
- Malfunction Indicator Lamp illumination (a.k.a. Check Engine Light)
- Vehicle may be overheating or running hotter than normal
Fan Speed Sensor Circuit No Signal
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Faulty Fan Speed Sensor
– Fan Speed Sensor harness is open or shorted
– Fan Speed Sensor circuit poor electrical connection
– Faulty fan clutch
– Faulty PCM
Specific Makes:
– Engine overheating