P0527

Fan Speed Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–89 (est.)

Symptoms

Engine overheating
Unstable cooling fan operation
Fan turning on at maximum speed for no reason
Check Engine Light Illuminates

Causes

Fan speed sensor malfunction
Open or short circuit in wiring harness
Poor contact in connectors
Fan control module malfunction
Problems with the engine ECU

How to Fix

Check the integrity of the sensor wiring harness
Clean connector contacts
Test the fan speed sensor
Check the operation of the fan control module
If necessary, replace the sensor or repair the wiring

Related codes

P0528 P0480 P0481