AutoCodes – GMC – P135F 2018 GMC Sierra

P135F 2018 GMC Sierra Code - Cooling Fan 4 Status Signals Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Cooling Fan 4, Cooling Fan 4 harness is open or shorted, Cooling Fan 4 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: P135F 2018 GMC Sierra indicates Cooling Fan 4 Status Signals Message Counter Incorrect.
Common causes: Common causes include Faulty Cooling Fan 4, Cooling Fan 4 harness is open or shorted, Cooling Fan 4 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 130

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 Sep 27, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P135F 2018 GMC Sierra Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Cooling Fan 4 Status Signals Message Counter is Incorrect.

OBDII Code P135F 2018 GMC Sierra - Cooling Fan 4 Status Signals Message Counter Incorrect - AutoCodes.com — P135F 2018 GMC Sierra Code - Cooling Fan 4 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135F 2018 GMC Sierra?

Faulty Cooling Fan 4
Cooling Fan 4 harness is open or shorted
Cooling Fan 4 circuit poor electrical connection

How to Fix the DTC P135F 2018 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 P135F 2018 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 P135F 2018 GMC Sierra code?

Need more information on how to fix the P135F 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P135F 2018 GMC Sierra 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 P135F 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P135F in a 2018 GMC Sierra?

Symptoms may include the cooling fan running continuously, engine overheating, poor vehicle performance, and possibly an illuminated check engine light.

2. What can cause the OBDII code P135F to appear in a 2018 GMC Sierra?

Potential causes may include a malfunctioning cooling fan, a faulty temperature sensor, wiring issues, or a problem with the engine control module (ECM).

3. How serious is the OBDII code P135F in a 2018 GMC Sierra?

Ignoring this code can lead to engine overheating and potential damage, so it is important to address the issue promptly to prevent costly repairs.

4. Can I continue driving my 2018 GMC Sierra with the P135F code?

It is not recommended to drive your vehicle with the P135F code present, as it can result in overheating and engine damage. It's best to have your vehicle inspected and repaired as soon as possible.

5. How can I diagnose the OBDII code P135F in my 2018 GMC Sierra?

Diagnosis typically involves using a scan tool to retrieve the code, checking the cooling fan operation, inspecting the temperature sensor, and examining the wiring for any faults.

6. What are some repair tips for addressing the P135F code in a 2018 GMC Sierra?

Repair tips may include replacing the cooling fan, replacing the temperature sensor, repairing any damaged wiring, or reprogramming the engine control module (ECM) if necessary.

7. Can a DIY enthusiast fix the OBDII code P135F in a 2018 GMC Sierra?

Depending on your mechanical skills and access to tools, some DIY enthusiasts may be able to address the issue themselves by following repair guides or consulting with a professional for guidance.

8. How much does it cost to repair the OBDII code P135F in a 2018 GMC Sierra?

Repair costs can vary depending on the specific cause of the code and whether you choose to DIY or take your vehicle to a mechanic. Costs may include parts and labor expenses.

9. Is the OBDII code P135F covered under warranty for a 2018 GMC Sierra?

If your vehicle is still under warranty, the repair for the P135F code may be covered depending on the warranty terms and conditions. It's advisable to check with your dealership for more information.

10. How can I prevent the OBDII code P135F from reoccurring in my 2018 GMC Sierra?

Regular maintenance, such as checking the cooling system components, ensuring proper fan operation, and addressing any warning signs promptly, can help prevent the code from reoccurring.