Engine-CodesChevrolet – P135F 2017 Chevrolet Silverado

P135F 2017 Chevrolet Silverado Code - Cooling Fan 4 Status Signals Message Counter Incorrect

Quick Answer

The P135F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates that the cooling fan 4 status signals message counter is incorrect. Common causes include Faulty cooling fan relay: A malfunctioning cooling fan relay can prevent the ECM from receiving the correct signals from the cooling fan 4, Wiring issues: Damaged or corroded wiring connections between the cooling fan 4 and the ECM can disrupt communication signals, Defective cooling fan motor: A faulty cooling fan motor may not be sending the proper signals to the ECM, triggering the code. 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
P135F 2017 Chevrolet Silverado indicates Cooling Fan 4 Status Signals Message Counter Incorrect.
Common causes
Common causes include Faulty cooling fan relay: A malfunctioning cooling fan relay can prevent the ECM from receiving the correct signals from the cooling fan 4, Wiring issues: Damaged or corroded wiring connections between the cooling fan 4 and the ECM can disrupt communication signals, Defective cooling fan motor: A faulty cooling fan motor may not be sending the proper signals to the ECM, triggering the code.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P135F 2017 Chevrolet Silverado Description

The P135F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates that the cooling fan 4 status signals message counter is incorrect. This means that the Engine Control Module (ECM) has detected an issue with the communication signals related to the cooling fan 4, which is responsible for helping regulate the engine's temperature. The cooling fan plays a crucial role in maintaining the optimal operating temperature of the engine by dissipating heat generated during combustion. When the ECM receives incorrect signals or no signals at all from the cooling fan 4, it can lead to overheating, reduced engine performance, and potential long-term damage if not addressed promptly.

OBDII Code P135F 2017 Chevrolet Silverado - Cooling Fan 4 Status Signals Message Counter Incorrect
P135F 2017 Chevrolet Silverado Code - Cooling Fan 4 Status Signals Message Counter Incorrect

Common Causes of P135F 2017 Chevrolet Silverado

  1. Faulty cooling fan relay: A malfunctioning cooling fan relay can prevent the ECM from receiving the correct signals from the cooling fan 4.
  2. Wiring issues: Damaged or corroded wiring connections between the cooling fan 4 and the ECM can disrupt communication signals.
  3. Defective cooling fan motor: A faulty cooling fan motor may not be sending the proper signals to the ECM, triggering the code.
  4. ECM software glitch: An issue with the ECM software can cause incorrect message counters related to the cooling fan 4.

Symptoms of P135F 2017 Chevrolet Silverado

  1. Engine overheating: One of the most common symptoms associated with this code is the engine overheating due to the cooling fan not functioning properly.
  2. Poor engine performance: The vehicle may experience a decrease in performance, such as reduced power or acceleration, as a result of the engine running at higher temperatures.
  3. Check Engine Light: The Check Engine Light may illuminate on the dashboard to indicate a problem with the cooling fan system.
  4. Increased fuel consumption: Inefficient cooling fan operation can lead to increased fuel consumption as the engine works harder to maintain the correct temperature.

How to Fix P135F 2017 Chevrolet Silverado

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the cooling fan 4 system to identify the root cause of the problem.
  2. Check wiring and connections: Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test cooling fan relay: Test the cooling fan relay to ensure it is functioning correctly. Replace if necessary.
  4. Inspect cooling fan motor: Check the cooling fan motor for proper operation and replace if it is found to be defective.
  5. Clear the code: After completing the repairs, clear the DTC using the diagnostic scanner to reset the ECM and monitor the system for any recurring issues.

Cost to Fix P135F 2017 Chevrolet Silverado

The typical repair costs for addressing a P135F code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a cooling fan relay or motor can range from $100 to $300, including parts and labor. Wiring repairs may add additional costs, depending on the extent of the damage. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive prices. For a more accurate estimate, it is recommended to consult with local auto repair shops.

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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 P135F 2017 Chevrolet Silverado Code

1. What does the OBDII code P135F mean for a 2017 Chevrolet Silverado?

P135F indicates an issue with the Cooling Fan 4 status signal message counter, suggesting a communication error or malfunction between the fan module and the vehicle's control system.

2. What are the common symptoms of the P135F code in a 2017 Chevrolet Silverado?

Symptoms may include the cooling fan not operating properly, engine overheating, or the check engine light illuminating.

3. What causes the P135F code in a 2017 Chevrolet Silverado?

Common causes include a faulty cooling fan module, wiring or connector issues, a malfunctioning Engine Control Module (ECM), or software-related problems.

4. Can I drive my 2017 Chevrolet Silverado with the P135F code?

Driving with this code is not recommended, as it may lead to engine overheating and potential damage if the cooling fan is not functioning correctly.

5. How do I diagnose the P135F code in my 2017 Chevrolet Silverado?

Diagnosis involves checking the cooling fan module, inspecting wiring and connectors for damage, and using a scan tool to monitor communication signals and fan operation.

6. How do I fix the P135F code on a 2017 Chevrolet Silverado?

Repairs may include replacing the cooling fan module, repairing damaged wiring or connectors, or updating the ECM software if necessary.

7. Is the P135F code related to the cooling system or electrical system?

The P135F code primarily involves the electrical communication system between the cooling fan and the ECM.

8. How much does it cost to repair the P135F code on a 2017 Chevrolet Silverado?

Repair costs vary but typically range from $150 to $600, depending on whether the issue is with the fan module, wiring, or ECM.

9. Can a faulty cooling fan module trigger the P135F code?

Yes, a malfunctioning cooling fan module is one of the most common causes of the P135F code.

10. Will clearing the P135F code solve the problem in my Silverado?

Clearing the code may reset the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.

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