P0528: Fan Speed Sensor Circuit No Signal
HighPowertrainCooling System
What does P0528 mean?
P0528 is a diagnostic trouble code indicating "Fan Speed Sensor Circuit No Signal". A sensor in the cooling system is reporting abnormal data or has lost communication with the ECU. Sensors can fail due to age, contamination, heat exposure, or wiring issues.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Intermittent warning lights
- Erratic gauge readings
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $500 AUD
Common causes
- Faulty cooling system component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.
Get a diagnosis for YOUR car
Code P0528 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.