AutoCodes – Cadillac – P165C Cadillac

P165C Cadillac 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 Cadillac 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 459

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 Cadillac 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 Cadillac - Sensor Reference Voltage Status Message Counter Incorrect - AutoCodes.com — P165C Cadillac Code - Sensor Reference Voltage Status Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P165C Cadillac?

Faulty Sensor Reference Voltage

How to Fix the DTC P165C Cadillac?

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 Cadillac 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.

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Need Help with the Code?

Get the P165C Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code P165C in a Cadillac?

The common symptoms of OBDII code P165C in a Cadillac may include engine performance issues, rough idling, stalling, or the illumination of the Check Engine Light.

2. What does the OBDII code P165C Cadillac mean?

The OBDII code P165C for Cadillac indicates that the Sensor Reference Voltage Status Message Counter is incorrect, potentially leading to communication errors between various sensors and the vehicle's control module.

3. What are the possible causes of OBDII code P165C in a Cadillac?

Possible causes of OBDII code P165C in a Cadillac include faulty sensor connections, damaged wiring harnesses, a defective control module, or issues with the sensor reference voltage circuit.

4. How can I diagnose OBDII code P165C in my Cadillac?

Diagnosing OBDII code P165C in your Cadillac typically involves using an OBDII scanner to retrieve the code, inspecting sensor connections and wiring, checking the control module for faults, and testing the sensor reference voltage circuit.

5. Is it safe to continue driving with OBDII code P165C in my Cadillac?

It is not recommended to continue driving with OBDII code P165C in your Cadillac, as it can lead to poor engine performance and potential safety hazards. It is advisable to address the issue promptly.

6. Can I repair OBDII code P165C in my Cadillac myself?

Repairing OBDII code P165C in your Cadillac may require advanced automotive knowledge and diagnostic tools. It is recommended to seek professional help to accurately diagnose and fix the issue.

7. How much does it cost to fix OBDII code P165C in a Cadillac?

The cost to fix OBDII code P165C in a Cadillac can vary depending on the underlying cause of the issue. Repair costs may include parts replacement, labor charges, and diagnostic fees.

8. Are there any common quick fixes for OBDII code P165C in a Cadillac?

There are no common quick fixes for OBDII code P165C in a Cadillac, as the issue typically requires a thorough diagnostic process to identify and address the root cause effectively.

9. Can a faulty sensor cause OBDII code P165C in a Cadillac?

Yes, a faulty sensor, such as a damaged sensor connection or a malfunctioning sensor itself, can contribute to triggering OBDII code P165C in a Cadillac due to communication errors with the control module.

10. How important is it to address OBDII code P165C promptly in a Cadillac?

It is crucial to address OBDII code P165C promptly in a Cadillac to prevent potential engine performance issues, further damage to components, and ensure the vehicle operates safely and efficiently.