P1009 2018 GMC Sierra Code - Fuel Pump Driver Control Module Temperature High Signal Message Counter Incorrect
Quick Answer
The P1009 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the Fuel Pump Driver Control Module (FPDM) has detected a high temperature signal message counter that is incorrect. Common causes include Faulty FPDM temperature sensor, Wiring issues in the temperature sensor circuit, Malfunctioning FPDM. 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 FPDM temperature sensor, Wiring issues in the temperature sensor circuit, Malfunctioning FPDM.
- 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 P1009 2018 GMC Sierra Description
The P1009 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the Fuel Pump Driver Control Module (FPDM) has detected a high temperature signal message counter that is incorrect. The FPDM is responsible for controlling the fuel pump's operation, ensuring the correct fuel pressure is maintained for the engine's performance. When the temperature signal message counter is incorrect, it suggests a potential issue with the FPDM's temperature monitoring system, which could lead to various problems in the vehicle's fuel delivery system.
Common Causes of P1009 2018 GMC Sierra
- Faulty FPDM temperature sensor
- Wiring issues in the temperature sensor circuit
- Malfunctioning FPDM
- Corrosion or damage to electrical connections
- Extreme temperature fluctuations affecting the FPDM
Symptoms of P1009 2018 GMC Sierra
- Engine misfires
- Hesitation or lack of power during acceleration
- Stalling or difficulty starting the engine
- Check engine light illuminated
- Reduced fuel efficiency
How to Fix P1009 2018 GMC Sierra
- Begin by conducting a thorough inspection of the FPDM, temperature sensor, and related wiring for any visible damage or corrosion.
- Test the FPDM temperature sensor using a multimeter to determine if it is within the manufacturer's specified resistance range.
- Check the wiring harness for continuity and repair or replace any damaged wires as needed.
- If the FPDM is found to be faulty, replace it with a new unit and ensure proper programming or calibration is performed.
- Clear the DTC and perform a test drive to verify that the issue has been resolved and the code does not return.
Cost to Fix P1009 2018 GMC Sierra
The typical repair costs for addressing a P1009 DTC on a 2018 GMC Sierra can range from $200 to $500, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It is recommended to inquire about local rates for a more accurate estimate.
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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.
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