P0526

Fan Speed Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Engine overheating
Unstable cooling fan operation
Check Engine Light Illuminates
Reduced cooling efficiency

Causes

Fan speed sensor malfunction
Open or shorted wiring harness
Relay or fuse damage
ECU software error

How to Fix

Check the integrity of the wiring harness and connections
Check the fan speed sensor with a multimeter
Replace a faulty sensor or relay
If necessary, reflash the ECU

Related codes

P0525 P0527 P0528