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Engine-Codes – GMC – P135E GMC

P135E GMC Code - Cooling Fan 3 Status Signals Message Counter Incorrect

Quick Answer

The P135E diagnostic trouble code (DTC) for GMC vehicles indicates that the Cooling Fan 3 Status Signals Message Counter is incorrect. Common causes include Faulty cooling fan motor, Defective cooling fan relay, Wiring harness issues. 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
P135E GMC indicates Cooling Fan 3 Status Signals Message Counter Incorrect.
Common causes
Common causes include Faulty cooling fan motor, Defective cooling fan relay, Wiring harness issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P135E GMC Description

The P135E diagnostic trouble code (DTC) for GMC vehicles indicates that the Cooling Fan 3 Status Signals Message Counter is incorrect. This code is typically associated with a malfunction in the cooling fan system, which plays a crucial role in regulating the engine's temperature. The cooling fan helps dissipate heat generated by the engine during operation, preventing overheating and ensuring optimal performance.

OBDII Code P135E GMC - Cooling Fan 3 Status Signals Message Counter Incorrect
P135E GMC Code - Cooling Fan 3 Status Signals Message Counter Incorrect

Common Causes of P135E GMC

  1. Faulty cooling fan motor
  2. Defective cooling fan relay
  3. Wiring harness issues
  4. ECM malfunction
  5. Poor electrical connections

Symptoms of P135E GMC

  1. Engine overheating
  2. Poor air conditioning performance
  3. Increased engine temperature gauge readings
  4. Reduced fuel efficiency
  5. Check Engine Light illuminated

How to Fix P135E GMC

  1. Begin by conducting a visual inspection of the cooling fan system, checking for any obvious signs of damage or wear.
  2. Use a multimeter to test the cooling fan motor, relay, and wiring for continuity and proper voltage.
  3. Replace any faulty components, such as the cooling fan motor, relay, or wiring harnesses, as needed.
  4. Clear the DTC from the vehicle's ECM using a diagnostic scan tool.
  5. Test drive the vehicle to ensure that the cooling fan system is functioning properly and that the P135E code does not return.

Cost to Fix P135E GMC

The cost of repairing a P135E DTC for a GMC vehicle can vary depending on the specific cause of the issue and the cost of parts and labor in your area. In general, you can expect to pay anywhere from $150 to $500 for parts and labor to address this problem. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's a good idea to get a few quotes from different shops to find the best price for your repair.

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Information for Specific GMC Models

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 P135E GMC Code

1. What are the common symptoms of OBDII code P135E in a GMC vehicle?

- Common symptoms include an illuminated Check Engine Light, overheating engine, and the cooling fan not functioning properly.

2. What could cause the OBDII code P135E to trigger in a GMC vehicle?

- This code is typically triggered when the ECM detects that the cooling fan 3 status signals message counter is incorrect, indicating a communication error or fault in the cooling fan system.

3. How can I diagnose the cause of OBDII code P135E in my GMC vehicle?

- Diagnosing this code may involve checking the wiring, connectors, and components related to the cooling fan 3 system, as well as using a scan tool to retrieve freeze frame data for more information.

4. Is it safe to drive my GMC vehicle with OBDII code P135E present?

- It is not recommended to drive the vehicle with this code present, as it can lead to engine overheating and potential damage if the cooling fan is not functioning properly.

5. Can I repair OBDII code P135E in my GMC vehicle myself?

- Depending on your level of automotive knowledge and experience, you may be able to repair this code yourself by checking and repairing any wiring or connection issues related to the cooling fan 3 system.

6. How much does it typically cost to repair OBDII code P135E in a GMC vehicle?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic fees at a repair shop.

7. Will resetting the ECM clear OBDII code P135E in a GMC vehicle?

- Resetting the ECM may temporarily clear the code, but it is important to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.

8. How urgent is it to address OBDII code P135E in a GMC vehicle?

- It is recommended to address this code promptly to prevent potential engine damage from overheating and ensure the proper functioning of the cooling fan system.

9. Can extreme weather conditions affect the triggering of OBDII code P135E in a GMC vehicle?

- Extreme weather conditions, especially high temperatures, can potentially exacerbate cooling system issues and lead to the triggering of this code in a GMC vehicle.

10. Are there any recalls or technical service bulletins related to OBDII code P135E in GMC vehicles?

- It is advisable to check with a GMC dealership or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or remedies provided by the manufacturer.

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