AutoCodes – Chevrolet – P135D 2014 Chevrolet Silverado

P135D 2014 Chevrolet Silverado Code - Cooling Fan 2 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 2, Cooling Fan 2 harness is open or shorted, Cooling Fan 2 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: P135D 2014 Chevrolet Silverado indicates Cooling Fan 2 Status Signals Message Counter Incorrect.
Common causes: Common causes include Faulty Cooling Fan 2, Cooling Fan 2 harness is open or shorted, Cooling Fan 2 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 227

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 P135D 2014 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 2 Status Signals Message Counter is Incorrect.

OBDII Code P135D 2014 Chevrolet Silverado - Cooling Fan 2 Status Signals Message Counter Incorrect - AutoCodes.com — P135D 2014 Chevrolet Silverado Code - Cooling Fan 2 Status Signals Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P135D 2014 Chevrolet Silverado?

Faulty Cooling Fan 2
Cooling Fan 2 harness is open or shorted
Cooling Fan 2 circuit poor electrical connection

How to Fix the DTC P135D 2014 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 P135D 2014 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 P135D 2014 Chevrolet Silverado code?

Need more information on how to fix the P135D 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P135D 2014 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 P135D 2014 Chevrolet Silverado Code

1. What does the OBDII code P135D mean for a 2014 Chevrolet Silverado?

P135D indicates that the Cooling Fan 2 Status Signals Message Counter is incorrect, often pointing to issues in the communication or operation of the secondary cooling fan.

2. What are the common symptoms of the P135D code?

Symptoms may include the cooling fan not functioning properly, overheating issues, reduced engine performance, or an illuminated Check Engine Light.

3. What causes the P135D code to appear?

Common causes include faulty cooling fan relays, a malfunctioning cooling fan motor, wiring issues, or problems with the Engine Control Module (ECM) communication.

4. Can the P135D code cause engine damage?

If left unaddressed, the code could lead to engine overheating, which may result in significant engine damage over time.

5. How do I diagnose the P135D code?

Start by inspecting the cooling fan relays, wiring, and connectors for damage or loose connections. Use a diagnostic scanner to check for related codes and test the cooling fan operation.

6. Can a faulty cooling fan motor trigger the P135D code?

Yes, a malfunctioning cooling fan motor can disrupt the operation of Cooling Fan 2 and trigger the P135D code.

7. How do I fix the P135D code?

Repairs may involve replacing a faulty cooling fan relay, repairing damaged wiring, replacing the cooling fan motor, or reprogramming the ECM if necessary.

8. How much does it cost to repair the P135D code?

Repair costs can vary, but replacing a cooling fan motor may cost between $300 and $600, while relay or wiring repairs are typically less expensive.

9. Can I drive my truck with the P135D code?

Itâ€™s not recommended to drive for extended periods with this code active, as cooling fan issues can lead to engine overheating and potential damage.

10. How can I prevent the P135D code from recurring?

Regularly inspect and maintain the cooling fan system, including relays, wiring, and the fan motor. Address any overheating issues promptly to avoid recurring problems.