P0529

Fan Speed Sensor Circuit Intermittent

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–56 (est.)

Symptoms

Unstable cooling fan operation
Engine overheating
Check Engine light comes on
Reduced cooling system efficiency

Causes

Damaged or worn fan speed sensor
Open or shorted wiring harness
Poor contact in connectors
Fan relay fault
Problems with the ECU

How to Fix

Check the integrity of the wiring harness and connectors
Test the fan speed sensor
Replace sensor if necessary
Check fan relay
Clean or replace connectors if corroded

Related codes

P0480 P0481 P0691