AutoCodes – GMC – P165C 2014 GMC Sierra

P165C 2014 GMC Sierra Code - Sensor Reference Voltage Status Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Sensor Reference Voltage. 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: P165C 2014 GMC Sierra indicates Sensor Reference Voltage Status Message Counter Incorrect.
Common causes: Common causes include Faulty Sensor Reference Voltage.
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 169

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 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P165C 2014 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 Sensor Reference Voltage Status Message Counter is Incorrect.

OBDII Code P165C 2014 GMC Sierra - Sensor Reference Voltage Status Message Counter Incorrect - AutoCodes.com — P165C 2014 GMC Sierra Code - Sensor Reference Voltage Status Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P165C 2014 GMC Sierra?

Faulty Sensor Reference Voltage

How to Fix the DTC P165C 2014 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 P165C 2014 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 P165C 2014 GMC Sierra code?

Need more information on how to fix the P165C 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P165C 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P165C in a 2014 GMC Sierra?

- Common symptoms include check engine light illumination, reduced engine performance, and potential issues with the vehicle's sensors.

2. What does the OBDII code P165C "Sensor Reference Voltage Status Message Counter Incorrect" mean for a 2014 GMC Sierra?

- This code indicates that the message counter for the sensor reference voltage status is not matching the expected value, signaling a potential communication error between the sensor and the vehicle's computer.

3. What are the possible causes of OBDII code P165C in a 2014 GMC Sierra?

- Possible causes include faulty sensor connections, damaged wiring harness, issues with the sensor itself, or problems with the vehicle's computer system.

4. How can I diagnose the OBDII code P165C in my 2014 GMC Sierra?

- Diagnosing this code typically involves checking the sensor connections, inspecting the wiring harness for any damage, testing the sensor's functionality, and using a diagnostic scanner to retrieve specific error codes.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P165C?

- It is not recommended to ignore this code and continue driving, as it can lead to further issues with the vehicle's performance and potentially cause damage to other components.

6. How can I repair OBDII code P165C in a 2014 GMC Sierra?

- Repair options may include fixing or replacing faulty sensor connections, repairing damaged wiring, replacing the sensor if necessary, and resetting the error code using a diagnostic tool.

7. Will resetting the error code make OBDII code P165C go away permanently in a 2014 GMC Sierra?

- Resetting the code may temporarily clear the error, but if the underlying issue causing the code is not addressed, it is likely to reappear once the problem persists.

8. Is it safe to attempt DIY repairs for OBDII code P165C in a 2014 GMC Sierra?

- DIY repairs are feasible for simple fixes like checking connections and inspecting wiring, but more complex issues may require professional diagnosis and repair to ensure proper resolution.

9. How long does it typically take to repair OBDII code P165C in a 2014 GMC Sierra?

- The repair time can vary depending on the specific cause of the code, ranging from a few minutes for simple fixes to several hours for more extensive repairs or part replacements.

10. Can extreme weather conditions affect the likelihood of OBDII code P165C occurring in a 2014 GMC Sierra?

- Extreme weather conditions, such as extreme heat or cold, can potentially exacerbate existing sensor or wiring issues, increasing the likelihood of triggering OBDII code P165C in the vehicle.