AutoCodes – GMC – P3052 GMC

P3052 GMC 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 GMC 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.

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Code Popularity 1,433

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 May 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P3052 GMC 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 GMC - DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage - AutoCodes.com — P3052 GMC Code - DC/DC Converter Actuator Voltage Sensor Circuit 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P3052 GMC?

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 GMC?

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 GMC 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 GMC 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 P3052 GMC Code

1. What are the common symptoms of OBDII code P3052 GMC?

The common symptoms of OBDII code P3052 GMC include poor fuel efficiency, reduced engine performance, and potential stalling or rough idling.

2. What does the OBDII code P3052 GMC indicate?

OBDII code P3052 GMC indicates a low voltage condition in the DC/DC Converter Actuator Voltage Sensor Circuit 2.

3. What are the possible causes of OBDII code P3052 GMC?

Possible causes of OBDII code P3052 GMC include a faulty DC/DC converter actuator voltage sensor, damaged wiring or connectors in the circuit, or a malfunctioning powertrain control module.

4. How can I diagnose the OBDII code P3052 GMC?

Diagnosing OBDII code P3052 GMC involves using a diagnostic scanner to retrieve the code, checking the voltage sensor circuit for any visible damage, and testing the sensor and related components for proper functionality.

5. Can I drive my vehicle with OBDII code P3052 GMC?

It is not recommended to drive your vehicle with OBDII code P3052 GMC as it can lead to further damage and potential safety issues. It is advisable to address the underlying issue promptly.

6. How can I repair OBDII code P3052 GMC?

Repairing OBDII code P3052 GMC may involve replacing the DC/DC converter actuator voltage sensor, repairing or replacing damaged wiring or connectors, or reprogramming the powertrain control module.

7. Is it possible to reset OBDII code P3052 GMC without repairs?

Resetting OBDII code P3052 GMC without addressing the underlying issue may temporarily clear the code, but it is likely to reappear if the root cause is not resolved.

8. Can a DIY enthusiast fix OBDII code P3052 GMC?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P3052 GMC, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure safety and effectiveness.

9. How much does it cost to repair OBDII code P3052 GMC?

The cost to repair OBDII code P3052 GMC can vary depending on the underlying issue, the parts needed for repair, and the labor rates of the service provider. It is advisable to obtain quotes from reputable mechanics.

10. Will OBDII code P3052 GMC cause my vehicle to fail an emissions test?

OBDII code P3052 GMC can potentially cause your vehicle to fail an emissions test, as it indicates a problem with the DC/DC converter actuator voltage sensor circuit, which can impact emissions control systems. It is advisable to address the issue before undergoing an emissions test.