AutoCodes – Chevrolet – P135F 2018 Chevrolet Silverado

P135F 2018 Chevrolet Silverado 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 Chevrolet Silverado 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 288

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P135F 2018 Chevrolet Silverado 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 Chevrolet Silverado - Cooling Fan 4 Status Signals Message Counter Incorrect - AutoCodes.com — P135F 2018 Chevrolet Silverado Code - Cooling Fan 4 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135F 2018 Chevrolet Silverado?

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 Chevrolet Silverado?

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 Chevrolet Silverado 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 Chevrolet Silverado code?

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

Need Help with the Code?

Get the P135F 2018 Chevrolet Silverado 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 Chevrolet Silverado Code

1. What does the OBDII code P135F mean on a 2018 Chevrolet Silverado?

The code P135F indicates an issue with the Cooling Fan 4 Status Signals Message Counter, meaning the ECM is detecting inconsistent or incorrect signals from the cooling fan control module.

2. What are the common symptoms of P135F on a 2018 Chevy Silverado?

Symptoms may include the check engine light turning on, erratic cooling fan operation, overheating, or reduced engine cooling efficiency.

3. What causes the P135F code to appear on a Chevrolet Silverado?

Common causes include a faulty cooling fan control module, damaged wiring or connectors, a malfunctioning cooling fan motor, or issues with the ECM.

4. Can P135F cause engine overheating in my Silverado?

Yes, if the cooling fan doesnâ€™t operate properly or at the correct speed, it can lead to inadequate cooling and potential engine overheating.

5. How do I troubleshoot the P135F code on my Silverado?

Start by inspecting the cooling fan systemâ€™s wiring and connectors for damage or corrosion. Then, check the cooling fan module and test the fan motor for proper functionality.

6. Is it safe to drive my Silverado with the P135F code?

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

7. How can I fix the P135F code on my 2018 Chevrolet Silverado?

Repairs may involve replacing the cooling fan control module, repairing damaged wiring, or, in some cases, reprogramming or replacing the ECM.

8. Is P135F a common issue with the 2018 Chevrolet Silverado?

While not extremely common, this code can occur, especially in vehicles with higher mileage or if the cooling fan system has experienced wear or damage.

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

Youâ€™ll need an OBDII scanner, multimeter, and possibly a wiring diagram for the cooling fan system to properly diagnose the issue.

10. How much does it cost to fix the P135F code on a Silverado?

Repair costs vary depending on the issue, but replacing a cooling fan control module can range from $200 to $500, plus labor. Wiring repairs may cost less, while ECM replacement or reprogramming could be more expensive.