AutoCodesGMC – P1009 2018 GMC Sierra

P1009 2018 GMC Sierra Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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
P1009 2018 GMC Sierra indicates Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 322
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 18, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1009 2018 GMC Sierra Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Fuel Pump Driver Control Module Temperature High Signal Message Counter is Incorrect.
OBDII Code P1009 2018 GMC Sierra - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect - AutoCodes.com
P1009 2018 GMC Sierra Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect

What are the Possible Causes of the DTC P1009 2018 GMC Sierra?

  • Faulty Fuel Pump Driver Control Module
  • Fuel Pump Driver Control Module harness is open or shorted
  • Fuel Pump Driver Control Module circuit poor electrical connection

How to Fix the DTC P1009 2018 GMC Sierra?

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 P1009 2018 GMC Sierra 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 P1009 2018 GMC Sierra code?

Need more information on how to fix the P1009 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1009 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 2018 GMC Sierra Code

What does the OBDII code P1009 mean on a 2018 GMC Sierra?

P1009 indicates an issue with the Fuel Pump Driver Control Module (FPCM), specifically a high signal temperature message counter that is incorrect or outside normal parameters.

What are the common symptoms of the P1009 code in a 2018 GMC Sierra?

Symptoms may include difficulty starting, reduced engine performance, erratic fuel pump operation, or the check engine light being illuminated.

What causes the P1009 code to appear in a 2018 GMC Sierra?

Common causes include a malfunctioning Fuel Pump Driver Control Module, poor electrical connections, damaged wiring, or a software issue in the FPCM.

Can I drive my 2018 GMC Sierra with the P1009 code?

Driving with this code is not recommended, as it may lead to fuel delivery issues and potential engine performance problems.

How do I diagnose the P1009 code on a 2018 GMC Sierra?

Diagnosis involves scanning for codes, inspecting the Fuel Pump Driver Control Module, checking for damaged wiring, and verifying the integrity of electrical connections.

What tools are needed to troubleshoot the P1009 code?

An OBDII scanner, a multimeter for checking voltage and continuity, and possibly wiring diagrams for the fuel pump control system are commonly used tools.

How is the P1009 code fixed on a 2018 GMC Sierra?

Repairs may involve replacing the Fuel Pump Driver Control Module, repairing or replacing damaged wiring, updating module software, or cleaning corroded connectors.

Is the P1009 code covered under warranty on a 2018 GMC Sierra?

It depends on the vehicle’s warranty status and coverage. Consult your GMC dealership or warranty documentation for details.

How much does it cost to repair the P1009 code in a 2018 GMC Sierra?

Repair costs vary, but replacing the Fuel Pump Driver Control Module can range from $300 to $800, including parts and labor, depending on the extent of the issue.

Can a software update fix the P1009 code on a 2018 GMC Sierra?

In some cases, a software update to the Fuel Pump Driver Control Module may resolve the issue if the problem is related to incorrect programming.

Discuss the causes and fixes for P1009 2018 GMC Sierra OBDII Code

Code P1009 2018 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play