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Engine-Codes – GMC – P1009 GMC

P1009 GMC Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect

Quick Answer

The P1009 GMC code indicates that the Fuel Pump Driver Control Module Temperature High Signal Message Counter is incorrect. Common causes include Faulty fuel pump driver control module, Wiring issues causing incorrect temperature readings, Malfunctioning temperature sensor. 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
P1009 GMC indicates Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect.
Common causes
Common causes include Faulty fuel pump driver control module, Wiring issues causing incorrect temperature readings, Malfunctioning temperature sensor.
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 09, 2024
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Code P1009 GMC Description

The P1009 GMC code indicates that the Fuel Pump Driver Control Module Temperature High Signal Message Counter is incorrect. This means that the control module responsible for managing the fuel pump driver is detecting a temperature reading that is higher than normal, and the message counter is not aligning with expected values. The fuel pump driver control module plays a crucial role in regulating the fuel pump's operation, ensuring the right amount of fuel is delivered to the engine at all times. When this module detects an issue with the temperature signal, it can lead to improper fuel delivery, affecting the vehicle's performance.

OBDII Code P1009 GMC - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
P1009 GMC Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect

Common Causes of P1009 GMC

  1. Faulty fuel pump driver control module
  2. Wiring issues causing incorrect temperature readings
  3. Malfunctioning temperature sensor
  4. Corrosion or damage to electrical connections
  5. Overheating of the fuel pump driver control module

Symptoms of P1009 GMC

  1. Engine misfires
  2. Loss of power or acceleration
  3. Engine stalling
  4. Check engine light illuminated
  5. Decreased fuel efficiency

How to Fix P1009 GMC

  1. Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the specific error code and further information related to the issue.
  2. Inspect the wiring and electrical connections related to the fuel pump driver control module and temperature sensor for any signs of damage or corrosion.
  3. Test the temperature sensor to ensure it is functioning correctly and providing accurate readings.
  4. Replace the fuel pump driver control module if it is determined to be faulty or overheating.
  5. Clear the error code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1009 GMC

The typical repair costs for addressing a P1009 GMC code can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty fuel pump driver control module can range from $200 to $500, including parts and labor. However, additional costs may apply if wiring repairs or sensor replacements are necessary. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It is recommended to consult with a qualified mechanic to get a more accurate estimate based on your vehicle make and model.

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Information for Specific GMC Models

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 P1009 GMC Code

1. What are the common symptoms of OBDII code P1009 in a GMC vehicle?

- Common symptoms include engine stalling, poor acceleration, rough idling, and possible issues with the fuel pump.

2. What does the OBDII code P1009 GMC indicate about the Fuel Pump Driver Control Module temperature?

- The code indicates that the temperature of the Fuel Pump Driver Control Module is too high, triggering a signal message counter error.

3. What are the possible causes of the P1009 code in a GMC vehicle?

- Possible causes include a faulty Fuel Pump Driver Control Module, wiring issues, a defective fuel pump, or problems with the vehicle's computer system.

4. How can I diagnose the OBDII code P1009 in my GMC vehicle?

- Diagnosing the code typically involves using an OBDII scanner to retrieve the code and then inspecting the Fuel Pump Driver Control Module, wiring, and fuel pump for any issues.

5. Can driving with the P1009 code cause further damage to my GMC vehicle?

- Continuing to drive with the P1009 code can potentially cause damage to the fuel pump or other related components, so it's recommended to address the issue promptly.

6. How can I repair the OBDII code P1009 in a GMC vehicle?

- Repairing the P1009 code may involve replacing the Fuel Pump Driver Control Module, repairing any damaged wiring, or addressing issues with the fuel pump as needed.

7. Is it safe to drive my GMC vehicle with the P1009 code temporarily cleared?

- It is not recommended to drive the vehicle with the code temporarily cleared, as the underlying issue may still be present and could lead to further problems.

8. Can a DIY enthusiast fix the OBDII code P1009 issue in a GMC vehicle?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the P1009 code by replacing components like the Fuel Pump Driver Control Module.

9. How much does it typically cost to repair the OBDII code P1009 in a GMC vehicle at a mechanic or dealership?

- The cost of repairing the P1009 code can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Is the OBDII code P1009 GMC a common issue in certain models or years of GMC vehicles?

- The P1009 code may be more common in specific models or years of GMC vehicles, so it's advisable to check for any known issues or recalls related to this code in your particular vehicle.

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