AutoCodes – Chevrolet – P3051 Chevrolet

P3051 Chevrolet Code - DC/DC Converter Actuator Voltage Sensor Circuit 1 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: P3051 Chevrolet indicates DC/DC Converter Actuator Voltage Sensor Circuit 1 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 12,228

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 P3051 Chevrolet 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 P3051 Chevrolet - DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage - AutoCodes.com — P3051 Chevrolet Code - DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P3051 Chevrolet?

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

How to Fix the DTC P3051 Chevrolet?

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 P3051 Chevrolet 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 P3051 Chevrolet code?

Need more information on how to fix the P3051 Chevrolet 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 P3051 Chevrolet Code

1. What are common symptoms of OBDII code P3051 in a Chevrolet vehicle?

- Common symptoms include poor fuel efficiency, rough idling, engine stalling, and reduced overall performance.

2. What can cause the DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage error code in a Chevrolet?

- The code P3051 can be triggered by issues such as a faulty actuator, damaged wiring, or a malfunctioning voltage sensor.

3. How can I diagnose the cause of OBDII code P3051 in my Chevrolet?

- To diagnose P3051, it is recommended to perform a thorough inspection of the actuator, check the wiring for any damage, and test the voltage sensor for proper functionality.

4. Can driving with the P3051 OBDII code in a Chevrolet cause further damage?

- Continuing to drive with the P3051 code may lead to decreased fuel efficiency, potential engine damage, and in some cases, engine stalling.

5. Are there any quick repair tips for resolving the DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage code?

- Quick repair tips include checking and cleaning the connectors, ensuring proper wiring connections, and resetting the error code to see if it reoccurs.

6. What are the potential risks of ignoring the OBDII code P3051 in a Chevrolet?

- Ignoring the P3051 code can result in more severe engine problems, increased fuel consumption, and potential safety hazards if the vehicle stalls unexpectedly.

7. How much does it typically cost to repair the DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage issue in a Chevrolet?

- Repair costs for the P3051 code can vary depending on the exact cause of the problem, but they may range from $200 to $500 or more, including parts and labor.

8. Can I reset the OBDII code P3051 in my Chevrolet without fixing the underlying issue?

- While you can reset the error code using an OBDII scanner, it is not recommended to do so without addressing the root cause, as the problem may persist and potentially worsen over time.

9. Is it safe to drive my Chevrolet with the P3051 code if the car seems to be running fine?

- It is not advisable to drive the vehicle with the P3051 code present, as the underlying issue can lead to more significant problems and compromise the safety and performance of the vehicle.

10. How long does it typically take to repair the DC/DC Converter Actuator Voltage Sensor Circuit 1 Low Voltage issue in a Chevrolet?

- The repair time for the P3051 code can vary depending on the exact cause and complexity of the repair needed, but it may take anywhere from a few hours to a full day at a repair shop.