AutoCodes – Chevrolet – P1009 2018 Chevrolet Silverado

P1009 2018 Chevrolet Silverado 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 Chevrolet Silverado 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.
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Code Popularity 309
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 18, 2022
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Code P1009 2018 Chevrolet Silverado 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 Chevrolet Silverado - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect - AutoCodes.com
P1009 2018 Chevrolet Silverado Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect

What are the Possible Causes of the DTC P1009 2018 Chevrolet Silverado?

  • 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 Chevrolet Silverado?

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 Chevrolet Silverado 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 Chevrolet Silverado code?

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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 P1009 2018 Chevrolet Silverado Code

1. What does the OBDII code P1009 mean on a 2018 Chevrolet Silverado?

The P1009 code indicates an issue with the Fuel Pump Driver Control Module, specifically a high-temperature signal or an incorrect message counter.

2. What are the symptoms of P1009 on a 2018 Chevrolet Silverado?

Common symptoms may include engine stalling, difficulty starting, reduced engine performance, or an illuminated Check Engine Light.

3. What causes the P1009 code to appear?

The code can be triggered by overheating of the Fuel Pump Driver Control Module, wiring or connector issues, a software glitch, or a malfunctioning control module.

4. Can I drive my 2018 Chevrolet Silverado with a P1009 code?

Driving with a P1009 code is not recommended as it may lead to fuel delivery problems, potential stalling, or further damage to the fuel system components.

5. How do you diagnose a P1009 code?

Diagnosis typically involves scanning for codes, inspecting wiring and connections to the Fuel Pump Driver Control Module, and testing the module's functionality and temperature.

6. How is the P1009 code fixed?

Repairs may include replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, or updating the module's software.

7. What tools are needed to diagnose and repair a P1009 code?

Tools may include an OBDII scanner, a multimeter for testing electrical connections, and possibly specialized diagnostic tools for module programming.

8. Does the P1009 code mean the fuel pump itself is bad?

No, this code typically points to an issue with the Fuel Pump Driver Control Module, not the fuel pump itself, though both should be evaluated if problems persist.

9. Can a software update fix the P1009 code?

Yes, in some cases, a software update for the Fuel Pump Driver Control Module can resolve incorrect signal or message counter issues.

10. How much does it cost to fix the P1009 code on a 2018 Chevrolet Silverado?

The cost depends on the exact issue but can range from $100 for minor wiring repairs to $600 or more for module replacement and programming.

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