Technical Definition:
Fan Speed Sensor Circuit
Trouble Code: P0526
Address: 0x0526
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Address: 0x0526
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 loose connection
- Faulty PCM/ECM
- Faulty cooling fan speed sensor
- Accessory belt broken
Possible Symptoms:
- Malfunction Indicator Lamp illumination (Check Engine Light)
- Vehicle may be overheating or running hotter than normal
Cooling Fan Speed Sensor Circuit
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Cooling fan harness and connector
– Faulty cooling fan
Specific Makes:
– Engine overheating