NHTSA ID Number: 10199256
Manufacturer Communication Number: 21NA025
Summary
This technical bulletin provides a procedure to replace the Fuel Power Module if found the cause of the customers concern.
Condition
One or more of the following conditions:
- Loss of power
- Stalling
- MIL illuminated
DTC P129F (Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect) set in the Engine Control Module (ECM).
Cause
This condition may be caused by an issue with the Fuel Pump Power Control Module.
Correction
Replace the Fuel Pump Power Control Module.
Service Procedure
Refer to Fuel Pump Power Control Module Replacement in SI.
Parts Information
| Description | Part Number | Qty |
| MODULE, .F/PUMP PWR CONT | 13540018 | 1 |
4 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-025
Date: June, 2021
MC-10199256-9999.pdf 496.222KB
NHTSA ID Number: 10198865
Manufacturer Communication Number: 21NA025
Summary
This technical bulletin provides a procedure to replace the Fuel Power Module if found the cause of the customers concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-025
Date: June, 2021
MC-10198865-9999.pdf 496.222KB
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Copyright 2021 General Motors LLC. All Rights Reserved.
Service B n
Bulletin No.: 21-NA-025 TECHNICAL
Date: June, 2021
Subject: Loss of Power, Stalling Malfunction Indicator Lamp (MIL) Illuminated – DTC P129F Set Brand: Chevrolet Sierra Model: Silverado 2500/3500 Sierra 2500/3500 Model Year: from to
2019 2020 VIN:
from to Engine: L5P Transmission: Involved Region or Country Condition Cause Correction North America, Middle East, Israel, Palestine
Some customers may comment on one or more of the following conditions:
• Loss of power
• Stalling
• MIL illuminated
Some technicians may find DTC P129F (Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect) set in the Engine Control Module (ECM).
This condition may be caused by an issue with the Fuel Pump Power Control Module. Replace the Fuel Pump Power Control Module.
Service Procedure Refer to Fuel Pump Power Control Module Replacement in SI.
Parts Information
Causal Part
X
Description MODULE, .F/ PUMP
PWR CONT
Part Number
13540018
Qty 1 Warranty Information
For vehicles repaired under warranty, use: Labor Operation 4022020 Description Fuel Pump Power Control Module Replacement Labor Time
Use the Published Labor Operations Time Version Modified 1
Released May 27, 2021 GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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