AutoCodes – Generic – P0529

P0529 Code - Fan Speed Sensor Circuit Intermittent

Quick Answer

P0529 indicates Fan Speed Sensor Circuit Intermittent. Common causes include Faulty Fan Speed Sensor, Fan Speed Sensor harness is open or shorted, Fan Speed Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0529 indicates Fan Speed Sensor Circuit Intermittent.
Common causes: Common causes include Faulty Fan Speed Sensor, Fan Speed Sensor harness is open or shorted, Fan Speed Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,410

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0529 Description

OBDII Code P0529 - Fan Speed Sensor Circuit Intermittent - AutoCodes.com — P0529 Code - Fan Speed Sensor Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0529?

Faulty Fan Speed Sensor
Fan Speed Sensor harness is open or shorted
Fan Speed Sensor circuit poor electrical connection

How to Fix the DTC P0529?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0529 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0529 code?

Need more information on how to fix the P0529 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0529 code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0529 Code

What does OBDII code P0529 mean?

1. P0529 indicates an intermittent issue in the fan speed sensor circuit, which monitors the cooling fan's operation to ensure proper engine temperature control. 2.

What are the common symptoms of code P0529?

Symptoms may include engine overheating, the cooling fan not operating correctly, an illuminated check engine light, or reduced air conditioning performance. 3.

What causes code P0529 to appear?

Common causes include a faulty fan speed sensor, damaged wiring or connectors in the fan circuit, a malfunctioning cooling fan motor, or issues with the vehicle's PCM (Powertrain Control Module). 4.

Can I drive my car with code P0529?

Driving with this code can risk engine overheating, especially in hot weather or during heavy use. It's best to address the issue promptly to avoid potential engine damage. 5.

How do I diagnose code P0529?

Start by inspecting the fan speed sensor, wiring, and connectors for damage or corrosion. Use a multimeter to test the sensor and circuit continuity, and check for proper operation of the cooling fan motor. 6.

How do I fix code P0529?

Repairs may include replacing the fan speed sensor, repairing damaged wiring or connectors, replacing the cooling fan motor, or in rare cases, reprogramming or replacing the PCM. 7.

How much does it cost to fix code P0529?

Repair costs vary, but replacing a fan speed sensor typically ranges from $100 to $300, including parts and labor. Additional repairs may increase the cost. 8.

Will clearing the code reset the issue?

Clearing the code may temporarily turn off the check engine light, but it won’t fix the underlying problem. The code will likely return until the issue is resolved. 9.

Can a faulty cooling fan motor trigger code P0529?

Yes, a malfunctioning cooling fan motor can cause an intermittent signal in the fan speed sensor circuit, leading to this code. 10.

Is code P0529 related to air conditioning problems?

Yes, since the cooling fan helps regulate the condenser's temperature, issues with the fan can reduce air conditioning efficiency or cause it to stop working properly.