OBD-II code · Powertrain (generic)
P0526 Fan Speed Sensor Circuit
A general circuit fault on the cooling fan tachometer feedback - the ECU loses fan speed information needed to verify cooling capacity and detect a stalled or runaway fan.
Is it safe to drive with P0526?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in sensor or wiring
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Fan Speed Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.