AutoCodes – Chevrolet – P135C 2016 Chevrolet Silverado

P135C 2016 Chevrolet Silverado Code - Cooling Fan 1 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 1, Cooling Fan 1 harness is open or shorted, Cooling Fan 1 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: P135C 2016 Chevrolet Silverado indicates Cooling Fan 1 Status Signals Message Counter Incorrect.
Common causes: Common causes include Faulty Cooling Fan 1, Cooling Fan 1 harness is open or shorted, Cooling Fan 1 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 231

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 P135C 2016 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 1 Status Signals Message Counter is Incorrect.

OBDII Code P135C 2016 Chevrolet Silverado - Cooling Fan 1 Status Signals Message Counter Incorrect - AutoCodes.com — P135C 2016 Chevrolet Silverado Code - Cooling Fan 1 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135C 2016 Chevrolet Silverado?

Faulty Cooling Fan 1
Cooling Fan 1 harness is open or shorted
Cooling Fan 1 circuit poor electrical connection

How to Fix the DTC P135C 2016 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 P135C 2016 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 P135C 2016 Chevrolet Silverado code?

Need more information on how to fix the P135C 2016 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 P135C 2016 Chevrolet Silverado Code

1. What does the OBDII code P135C mean on a 2016 Chevrolet Silverado?

P135C indicates an issue with the Cooling Fan 1 status signal, where the message counter from the fan control module is incorrect or not matching the expected value.

2. What are the common symptoms of code P135C in a 2016 Chevy Silverado?

Symptoms may include the cooling fan not operating properly, engine overheating, reduced engine performance, or the check engine light being illuminated.

3. What causes the P135C code to appear in a 2016 Chevrolet Silverado?

Common causes include a faulty cooling fan control module, wiring or connector issues in the fan circuit, or a software malfunction in the engine control module (ECM).

4. Can a faulty cooling fan motor trigger the P135C code?

Yes, if the cooling fan motor is malfunctioning, it can create incorrect feedback signals, which may trigger the P135C code.

5. How do I diagnose the P135C code on a 2016 Chevy Silverado?

Start by checking the wiring and connectors for the cooling fan for damage or corrosion. Use a scan tool to monitor the fan operation and verify if the control module is sending the correct signals.

6. Can I drive my 2016 Chevrolet Silverado with the P135C code?

Driving with this code is not recommended, as it may lead to engine overheating and potential damage if the cooling fan isnâ€™t functioning correctly.

7. What repairs are needed to fix the P135C code?

Repairs may include replacing the cooling fan control module, repairing damaged wiring or connectors, or reprogramming the ECM if a software update is required.

8. Is the P135C code covered under warranty for a 2016 Chevy Silverado?

This depends on your vehicleâ€™s mileage, age, and warranty terms. Check with your dealership to see if the cooling system components are covered.

9. How much does it cost to fix the P135C code on a 2016 Chevrolet Silverado?

The cost varies depending on the exact issue but can range from $150 for wiring repairs to $500 or more for a new cooling fan control module.

10. Can a dirty cooling system cause the P135C code?

While not a direct cause, a dirty cooling system may lead to overheating, which can indirectly stress the cooling fan components and contribute to signaling errors.