AutoCodes – GMC – P3053 GMC

P3053 GMC Code - DC/DC Converter Actuator Voltage Sensor Circuit 1 High 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: P3053 GMC indicates DC/DC Converter Actuator Voltage Sensor Circuit 1 High 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 894

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 P3053 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 P3053 GMC - DC/DC Converter Actuator Voltage Sensor Circuit 1 High Voltage - AutoCodes.com — P3053 GMC Code - DC/DC Converter Actuator Voltage Sensor Circuit 1 High Voltage

What does this mean?

What are the Possible Causes of the DTC P3053 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 P3053 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 P3053 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 P3053 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 P3053 GMC Code

1. What are the common symptoms of OBDII code P3053 in a GMC vehicle?

The common symptoms of code P3053 include the Check Engine Light coming on, reduced engine performance, and potential stalling or rough idling.

2. What does the OBDII code P3053 in a GMC indicate?

Code P3053 indicates an issue with the DC/DC Converter Actuator Voltage Sensor Circuit 1 showing high voltage, potentially affecting the power delivery system.

3. What are the possible causes of OBDII code P3053 in a GMC?

Possible causes of code P3053 include a faulty DC/DC converter actuator, damaged wiring or connectors in the voltage sensor circuit, or a malfunctioning voltage sensor.

4. How can I diagnose the OBDII code P3053 in my GMC?

Diagnosing code P3053 involves using an OBDII scanner to retrieve the code, checking the voltage sensor circuit for any visible damage, and testing the DC/DC converter actuator and related components for proper function.

5. Is it safe to drive with OBDII code P3053 active in a GMC?

It is not recommended to drive with code P3053 active as it can lead to potential power delivery issues and engine performance problems that may compromise vehicle safety and reliability.

6. Can I repair OBDII code P3053 in my GMC myself?

While basic troubleshooting like checking for loose connections or damaged wiring can be done by DIY enthusiasts, repairing code P3053 often requires advanced diagnostic tools and expertise. It is advisable to consult a professional mechanic for proper diagnosis and repair.

7. How much does it typically cost to repair OBDII code P3053 in a GMC?

The cost of repairing code P3053 in a GMC can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs. It's recommended to get a few quotes from different auto repair shops for an accurate estimate.

8. Can a faulty battery cause OBDII code P3053 to trigger in a GMC?

A faulty battery can potentially cause voltage fluctuations that may trigger code P3053. It's important to ensure the battery is in good condition and properly connected before diagnosing other potential causes.

9. Will resetting the OBDII system clear code P3053 in a GMC?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code P3053 is not addressed, the code is likely to return. It's crucial to diagnose and repair the root cause of the problem for a permanent fix.

10. How long does it typically take to repair OBDII code P3053 in a GMC?

The repair time for code P3053 can vary depending on the exact cause of the issue and the complexity of the repair. Some cases may be resolved within a few hours, while others may require more extensive diagnosis and repair work taking longer.