AutoCodes – Chevrolet – P135E 2018 Chevrolet Silverado

P135E 2018 Chevrolet Silverado Code - Cooling Fan 3 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 3, Cooling Fan 3 harness is open or shorted, Cooling Fan 3 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: P135E 2018 Chevrolet Silverado indicates Cooling Fan 3 Status Signals Message Counter Incorrect.
Common causes: Common causes include Faulty Cooling Fan 3, Cooling Fan 3 harness is open or shorted, Cooling Fan 3 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 203

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P135E 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 3 Status Signals Message Counter is Incorrect.

OBDII Code P135E 2018 Chevrolet Silverado - Cooling Fan 3 Status Signals Message Counter Incorrect - AutoCodes.com — P135E 2018 Chevrolet Silverado Code - Cooling Fan 3 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135E 2018 Chevrolet Silverado?

Faulty Cooling Fan 3
Cooling Fan 3 harness is open or shorted
Cooling Fan 3 circuit poor electrical connection

How to Fix the DTC P135E 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 P135E 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 P135E 2018 Chevrolet Silverado code?

Need more information on how to fix the P135E 2018 Chevrolet Silverado 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 P135E 2018 Chevrolet Silverado Code

1. What does the OBDII code P135E mean on a 2018 Chevrolet Silverado?

The code P135E indicates an issue with the Cooling Fan 3 Status Signals Message Counter, meaning the signal from the cooling fan control module for fan 3 is inconsistent or incorrect.

2. What are the common symptoms of code P135E in a 2018 Chevrolet Silverado?

Common symptoms include the cooling fan running continuously, the fan not activating when needed, engine overheating, or the check engine light illuminating.

3. What causes the P135E code to appear in a Chevrolet Silverado?

This code is typically caused by faulty cooling fan control module communication, a wiring issue, a software glitch in the Engine Control Module (ECM), or a defective cooling fan motor.

4. Can a bad cooling fan relay cause the P135E code?

Yes, a malfunctioning cooling fan relay can disrupt the signal to the ECM and trigger the P135E code.

5. How do I diagnose the P135E code on my 2018 Silverado?

Start by inspecting the cooling fan wiring and connectors for damage or corrosion, check the cooling fan relay and fuses, and use a diagnostic scanner to monitor fan operation and signal integrity.

6. Can I drive my Silverado with a P135E code?

Driving with this code is not recommended, as it can lead to engine overheating if the cooling fan system is not functioning properly.

7. How do I fix the P135E code on a 2018 Chevrolet Silverado?

Repairs may include replacing a damaged cooling fan motor, repairing or replacing faulty wiring, updating the ECM software, or replacing the cooling fan control module.

8. How much does it cost to repair the P135E code?

The repair cost varies depending on the issue, but replacing a cooling fan motor or control module typically costs between $200 and $600, including parts and labor.

9. Can a software update resolve the P135E code?

Yes, in some cases, an ECM software update from the dealership may resolve communication inconsistencies and clear the P135E code.

10. What tools are needed to troubleshoot the P135E code?

Youâ€™ll need a diagnostic scanner capable of reading Chevrolet-specific codes, a multimeter to test wiring, and possibly a service manual for wiring diagrams.