AutoCodes – GMC – P0526 2014 GMC Sierra

P0526 2014 GMC Sierra Code - Cooling Fan Speed Sensor Circuit

Quick Answer

The Engine Control Module (ECM) uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed. Common causes include Faulty Cooling Fan Clutch Assembly, Cooling Fan Clutch Assembly harness is open or shorted, Cooling Fan Clutch Assembly 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: P0526 2014 GMC Sierra indicates Cooling Fan Speed Sensor Circuit.
Common causes: Common causes include Faulty Cooling Fan Clutch Assembly, Cooling Fan Clutch Assembly harness is open or shorted, Cooling Fan Clutch Assembly 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.

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Code Popularity 256

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 Jul 02, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0526 2014 GMC Sierra Description

The Engine Control Module (ECM) uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed. The ECM uses the cooling fan speed signal in order to reduce the cooling fan noise and maintain the powertrain cooling requirements. The ECM supplies a 5-volt reference and low reference circuit to the clutch hall effect sensor in the cooling fan clutch. The hall effect sensor returns a signal pulse through the signal circuit in response to the reluctor track, which is located inside the fan clutch. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the cooling fan speed signal is greater or less than a predetermined threshold.

OBDII Code P0526 2014 GMC Sierra - Cooling Fan Speed Sensor Circuit - AutoCodes.com — P0526 2014 GMC Sierra Code - Cooling Fan Speed Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P0526 2014 GMC Sierra?

Faulty Cooling Fan Clutch Assembly
Cooling Fan Clutch Assembly harness is open or shorted
Cooling Fan Clutch Assembly circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0526 2014 GMC Sierra?

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 P0526 2014 GMC Sierra 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 P0526 2014 GMC Sierra code?

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Need Help with the Code?

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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 P0526 2014 GMC Sierra Code

1. What does the OBDII code P0526 mean on a 2014 GMC Sierra?

P0526 indicates a problem with the cooling fan speed sensor circuit, which monitors the fan's operation to ensure proper cooling.

2. What are the common symptoms of code P0526 in a 2014 GMC Sierra?

Symptoms may include engine overheating, the cooling fan running constantly or not at all, reduced air conditioning performance, and the check engine light being illuminated.

3. What causes the P0526 code on a 2014 GMC Sierra?

Common causes include a faulty cooling fan speed sensor, damaged wiring or connectors in the fan circuit, a failed cooling fan assembly, or a malfunctioning engine control module (ECM).

4. Can I drive my 2014 GMC Sierra with a P0526 code?

Driving with a P0526 code is not recommended, as it can lead to engine overheating, potentially causing severe damage if the cooling fan is not functioning properly.

5. How do I diagnose the P0526 code on a 2014 GMC Sierra?

Diagnosis involves checking for physical damage to the fan and wiring, testing the cooling fan speed sensor, and using a scan tool to monitor fan operation and sensor readings.

6. How do I fix the P0526 code on a 2014 GMC Sierra?

Repairs may include replacing the cooling fan speed sensor, repairing or replacing damaged wiring, or replacing the entire cooling fan assembly if necessary.

7. Where is the cooling fan speed sensor located in a 2014 GMC Sierra?

The cooling fan speed sensor is typically integrated into the cooling fan assembly near the fan motor.

8. How much does it cost to repair a P0526 code on a 2014 GMC Sierra?

Repair costs vary, but replacing the cooling fan speed sensor or fan assembly can range from $200 to $600, depending on labor and parts.

9. Can a bad cooling fan relay cause the P0526 code on a 2014 GMC Sierra?

While the relay itself may not trigger P0526, a malfunctioning relay could cause irregular fan operation, which might indirectly lead to the code.

10. Will clearing the P0526 code fix the problem in a 2014 GMC Sierra?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.