AutoCodes – GMC – P135F GMC

P135F GMC 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 GMC 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 363

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

What does this mean?

What are the Possible Causes of the DTC P135F GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

Get the P135F GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P135F 2014 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
P135F 2015 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
P135F 2016 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
P135F 2017 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
P135F 2018 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect

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 GMC Code

1. What are the common symptoms of OBDII code P135F (GMC)?

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

2. What causes the OBDII code P135F (GMC) to trigger?

- The code P135F is typically triggered when the Cooling Fan 4 Status Signals Message Counter is deemed incorrect by the vehicle's computer system.

3. How can I diagnose the issue related to code P135F (GMC)?

- Diagnosis involves checking the cooling fan operation, inspecting the fan wiring and connectors, and using a scan tool to retrieve and analyze the specific fault codes present.

4. Can a faulty cooling fan relay cause code P135F (GMC) to appear?

- Yes, a faulty cooling fan relay can contribute to the triggering of code P135F, as it can disrupt the proper functioning of the cooling fan system.

5. What are some repair tips for addressing OBDII code P135F (GMC)?

- Repair tips include checking and repairing any damaged wiring or connectors, replacing a faulty cooling fan relay, and ensuring the cooling fan operates smoothly.

6. Is it safe to continue driving with OBDII code P135F (GMC) present?

- It is not recommended to continue driving with code P135F present, as it can lead to engine overheating and potential damage if the cooling fan system is not functioning correctly.

7. Can resetting the fault codes clear OBDII code P135F (GMC)?

- Resetting the fault codes may temporarily clear the code P135F, but it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

8. Can a DIY enthusiast address OBDII code P135F (GMC) repair?

- Depending on the individual's mechanical skills and knowledge, a DIY enthusiast may be able to address code P135F by following repair guides and using the necessary tools.

9. How much does it typically cost to repair OBDII code P135F (GMC) at a professional auto repair shop?

- The cost of repairing code P135F can vary based on the extent of the issue, but it may range from $100 to $300 or more, including parts and labor.

10. Is OBDII code P135F (GMC) a common issue in certain GMC vehicle models?

- Code P135F related to the Cooling Fan 4 Status Signals Message Counter is more commonly seen in specific GMC models with cooling fan system configurations that may be prone to malfunctions.