AutoCodes – GMC – P135F 2016 GMC Sierra

P135F 2016 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 2016 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 129

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 2016 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 2016 GMC Sierra - Cooling Fan 4 Status Signals Message Counter Incorrect - AutoCodes.com — P135F 2016 GMC Sierra Code - Cooling Fan 4 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135F 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the P135F 2016 GMC Sierra code? Get Access to Factory Service Manuals

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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 2016 GMC Sierra Code

1. What does the OBDII code P135F mean on a 2016 GMC Sierra?

P135F indicates an issue with the Cooling Fan 4 Status Signals Message Counter, where the signal communication between the fan module and the engine control module (ECM) is incorrect or inconsistent.

2. What are the common symptoms of the P135F code on a 2016 GMC Sierra?

Symptoms may include the check engine light turning on, cooling fan running at high speed continuously, engine overheating, or irregular fan operation.

3. What causes the P135F code to appear on a GMC Sierra?

The main causes include a faulty cooling fan module, wiring or connector issues, a malfunctioning engine control module (ECM), or software glitches in the communication system.

4. Can the P135F code cause engine damage if left unresolved?

Yes, unresolved cooling fan issues can lead to engine overheating, which may cause severe engine damage over time.

5. How do I diagnose the P135F code on my GMC Sierra?

Diagnose by using a scan tool to check for related codes, inspecting the cooling fan wiring and connectors, testing the fan module functionality, and verifying communication with the ECM.

6. Can a software update fix the P135F code?

In some cases, a software update for the ECM or cooling fan control module may resolve the issue if a glitch in the communication protocol is the root cause.

7. How much does it cost to repair the P135F code on a GMC Sierra?

Repair costs vary but may range from $50 for simple wiring repairs to $500 or more if the cooling fan module or ECM requires replacement.

8. Can I drive my GMC Sierra with the P135F code active?

Driving with this code is not recommended, as improper cooling fan operation can lead to overheating and potential engine damage.

9. What tools are needed to troubleshoot the P135F code?

A professional OBDII scan tool, multimeter, and possibly an oscilloscope are needed to diagnose communication or wiring issues accurately.

10. Is the P135F code a common issue on the 2016 GMC Sierra?

While not extremely common, this code can occur due to wear and tear on the cooling fan module or wiring over time, particularly in high-mileage or heavily used vehicles.