AutoCodes – Generic – P3052

P3052 Code - DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage

Quick Answer

The Power Supply Transformer is used to boost battery voltage to sensitive loads during engine restart. Common causes include Faulty Power Supply Transformer, Power Supply Transformer harness is open or shorted, Power Supply Transformer 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
P3052 indicates DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage.
Common causes
Common causes include Faulty Power Supply Transformer, Power Supply Transformer harness is open or shorted, Power Supply Transformer 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 10,430
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 16, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P3052 Description

The Power Supply Transformer is used to boost battery voltage to sensitive loads during engine restart. It provides two voltage outputs that provide the boosted voltage. The Power Supply Transformer communicates to the Engine Control Module (ECM). When the engine is not cranking, the Power Supply Transformer passes through voltage from the two supply circuits. The ECM receives data about the sensed output voltages provided by the Power Supply Transformer.
OBDII Code P3052 - DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage - AutoCodes.com
P3052 Code - DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage

What are the Possible Causes of the DTC P3052?

  • Faulty Power Supply Transformer
  • Power Supply Transformer harness is open or shorted
  • Power Supply Transformer circuit poor electrical connection

How to Fix the DTC P3052?

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 P3052 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 P3052 code?

Need more information on how to fix the P3052 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P3052 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P3052 Buick β€” DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage
  • P3052 Cadillac β€” DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage
  • P3052 Chevrolet β€” DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage
  • P3052 GMC β€” DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage
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 P3052 Code

1. What are common symptoms of OBDII code P3052?

- Common symptoms include poor fuel efficiency, loss of power, and difficulty starting the vehicle.

2. What can cause the DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage error code?

- Possible causes include a faulty DC/DC converter actuator, damaged wiring, or a malfunctioning voltage sensor.

3. How can I diagnose the reason behind OBDII code P3052?

- Diagnosing the issue typically involves using a scan tool to check the voltage readings from the DC/DC converter actuator and the sensor.

4. Are there any DIY repair tips for fixing the DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage issue?

- DIY repair tips include checking for loose or damaged wiring, ensuring proper connections, and consulting the vehicle's service manual for specific troubleshooting steps.

5. Can driving with an unresolved P3052 code cause further damage to the vehicle?

- Continuing to drive with this code may lead to reduced performance and potential damage to other components in the vehicle's electrical system.

6. How much does it typically cost to repair OBDII code P3052 at a professional auto repair shop?

- Repair costs can vary depending on the exact cause of the issue, but they may range from $200 to $500, including parts and labor.

7. Is it safe to drive my vehicle with the DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage error code?

- It is not recommended to drive the vehicle with this code present, as it can affect the overall performance and efficiency of the vehicle.

8. Can a low battery voltage trigger the P3052 code?

- Yes, a low battery voltage can sometimes trigger the P3052 code due to insufficient power supply to the DC/DC converter actuator and sensor.

9. How long does it typically take to repair the DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage issue?

- The repair time can vary depending on the complexity of the problem, but it usually takes a few hours to a day to diagnose and fix the issue.

10. Will resetting the OBDII code P3052 make it go away permanently?

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

Discuss the causes and fixes for P3052 OBDII Code

Code P3052 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play