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Engine-Codes – Buick – P1002 Buick

P1002 Buick Code - Fuel Pump Driver Control Module System Voltage Performance

Quick Answer

The P1002 Buick code specifically refers to an issue with the Fuel Pump Driver Control Module System Voltage Performance. Common causes include Faulty fuel pump driver control module, Electrical wiring issues, Corrosion or damage to the electrical connectors. 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
P1002 Buick indicates Fuel Pump Driver Control Module System Voltage Performance.
Common causes
Common causes include Faulty fuel pump driver control module, Electrical wiring issues, Corrosion or damage to the electrical connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1002 Buick Description

The P1002 Buick code specifically refers to an issue with the Fuel Pump Driver Control Module System Voltage Performance. This code indicates that there is a problem with the control module responsible for regulating the voltage to the fuel pump. The fuel pump driver control module plays a crucial role in ensuring that the correct amount of fuel is delivered to the engine for optimal performance. When this system malfunctions, it can lead to various issues that affect the vehicle's performance and overall efficiency.

OBDII Code P1002 Buick - Fuel Pump Driver Control Module System Voltage Performance
P1002 Buick Code - Fuel Pump Driver Control Module System Voltage Performance

Common Causes of P1002 Buick

  1. Faulty fuel pump driver control module.
  2. Electrical wiring issues.
  3. Corrosion or damage to the electrical connectors.
  4. Loose or damaged connections in the fuel pump circuit.
  5. Voltage irregularities in the vehicle's electrical system.

Symptoms of P1002 Buick

  1. Engine hesitation or stalling during acceleration.
  2. Decreased fuel efficiency.
  3. Engine misfires.
  4. Check Engine light illuminated on the dashboard.
  5. Difficulty starting the vehicle.

How to Fix P1002 Buick

  1. Diagnose the issue by using a diagnostic scanner to read the trouble codes and perform electrical testing to pinpoint the exact cause of the problem.
  2. Inspect the fuel pump driver control module, wiring, and connectors for any visible damage or corrosion.
  3. Test the voltage output of the control module to ensure it is within the manufacturer's specifications.
  4. Replace the faulty control module or repair any damaged wiring or connectors as needed.
  5. Clear the trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1002 Buick

The cost of repairing a P1002 Buick code related to the Fuel Pump Driver Control Module System Voltage Performance can vary depending on the specific cause of the issue and the parts and labor required for the repair. Typically, the cost of replacing a fuel pump driver control module can range from $200 to $500, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It is advisable to consult with a reputable auto repair shop to obtain a more accurate cost estimate based on your vehicle's make and model. Keep in mind that labor rates can vary between different shops and locations.

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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 P1002 Buick Code

1. What are the common symptoms of OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- Common symptoms include engine stalling, rough idling, difficulty starting the vehicle, and reduced fuel efficiency.

2. What are the possible causes of OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- Possible causes include a faulty fuel pump driver module, issues with the fuel pump circuit, wiring problems, or a malfunctioning powertrain control module (PCM).

3. How can I diagnose OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the fuel pump driver module and circuit for proper functioning, and inspecting the wiring for any damage or loose connections.

4. Can I still drive my Buick with OBDII code P1002 related to the Fuel Pump Driver Control Module System Voltage Performance?

- It is not recommended to drive the vehicle with this code as it can lead to potential fuel delivery issues and engine performance problems.

5. How can I repair OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- Repair may involve replacing the fuel pump driver module, repairing any wiring issues, or reprogramming the PCM to resolve the voltage performance problem.

6. Is it safe to reset the OBDII code P1002 related to the Fuel Pump Driver Control Module System Voltage Performance without fixing the underlying issue?

- It is not recommended to reset the code without addressing the underlying problem, as it may lead to continued issues with the fuel pump system.

7. Can a DIY enthusiast fix OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- While some basic troubleshooting steps can be done by a DIY enthusiast, diagnosing and repairing this code may require specialized tools and expertise, so it is advisable to seek professional help.

8. How much does it typically cost to repair OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Are there any preventive measures to avoid OBDII code P1002 related to the Fuel Pump Driver Control Module System Voltage Performance in a Buick?

- Regular maintenance, such as checking the fuel system components and wiring for signs of wear, can help prevent issues that may trigger this OBDII code.

10. How long does it take to repair OBDII code P1002 in a Buick related to the Fuel Pump Driver Control Module System Voltage Performance?

- The repair time can vary based on the root cause of the issue and the complexity of the repair needed, but it may take a few hours to a full day to complete the repair process.

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