AutoCodes – GMC – P165C 2016 GMC Sierra

P165C 2016 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 2016 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 146

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 2016 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 2016 GMC Sierra - Sensor Reference Voltage Status Message Counter Incorrect - AutoCodes.com — P165C 2016 GMC Sierra Code - Sensor Reference Voltage Status Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P165C 2016 GMC Sierra?

Faulty Sensor Reference Voltage

How to Fix the DTC P165C 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the P165C 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P165C 2016 GMC Sierra 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 P165C 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P165C on a 2016 GMC Sierra?

- Common symptoms include illuminated check engine light, rough idling, poor engine performance, and potential stalling.

2. What does the OBDII code P165C for a 2016 GMC Sierra mean?

- The code indicates that the Sensor Reference Voltage Status Message Counter is incorrect, signaling a potential issue with the sensor reference voltage system.

3. What are the possible causes of OBDII code P165C on a 2016 GMC Sierra?

- The code may be triggered by a faulty sensor, wiring issues, a malfunctioning sensor reference voltage circuit, or a defective Engine Control Module (ECM).

4. How can I diagnose the OBDII code P165C on my 2016 GMC Sierra?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the sensor reference voltage system, inspecting wiring connections, and testing sensors for proper operation.

5. Can I continue driving my 2016 GMC Sierra with OBDII code P165C?

- It is not recommended to ignore the code as it can lead to further engine problems. It is advisable to address the issue promptly to prevent potential damage.

6. How can I repair OBDII code P165C on my 2016 GMC Sierra?

- Repair options may include replacing the faulty sensor, repairing damaged wiring, correcting sensor reference voltage issues, or replacing the ECM if necessary.

7. Is it possible to clear the OBDII code P165C on a 2016 GMC Sierra without fixing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, the underlying problem will persist, potentially leading to more severe issues in the future.

8. Are there any DIY tips for addressing OBDII code P165C on a 2016 GMC Sierra?

- DIY enthusiasts with automotive repair experience may attempt to inspect wiring connections, test sensors, and replace faulty components following manufacturer repair guides.

9. How much can I expect to pay for professional repairs for OBDII code P165C on a 2016 GMC Sierra?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $500 or more for parts and labor at a dealership or auto repair shop.

10. Will fixing OBDII code P165C on a 2016 GMC Sierra improve fuel efficiency and engine performance?

- Yes, resolving the code can help restore optimal performance, improve fuel efficiency, and prevent potential drivability issues associated with the sensor reference voltage system.