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U0109 on CHEVROLET SILVERADO

Lost Communication With Fuel Pump Control Module A

NHTSA Reports
2
Severity
Medium
Most Affected
2008
Crashes / Fires
0 / 0
Source: NHTSA Complaints Database · SAE J2012

What U0109 Means on Your CHEVROLET SILVERADO

U0109 is a diagnostic trouble code indicating: Lost Communication With Fuel Pump Control Module A. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 CHEVROLET SILVERADO owners have reported this issue to NHTSA across model years 2008. Most reports come from the 2008 model year. The most commonly reported component is Fuel/Propulsion System (50.0% of reports).

Real CHEVROLET SILVERADO Owner Reports

Source: NHTSA Complaints Database

"Engine stalled multiple times while driving. pulled codes and found u0109 fuel pump module communication. there is already a recall but my vehicle vin does not apply. environmental issues with the placement of this module causing corrosion internally shorting printed circuit board."

— 2008 CHEVROLET SILVERADO owner · FUEL/PROPULSION SYSTEM · Filed 04/02/2021

"Additionally, a small number of 2007-2012 model year vehicles that include; 2008-2013 chevrolet avalanche, 2008-2009 chevrolet colorado vehicles; 2007-2013 chevrolet silverado, 2008-2014 suburban, and tahoe vehicles; 2008-2013 gmc sierra and 2009-2012 yukon vehicles; 2008-2009 gmc canyon vehicles; 2"

— 2008 CHEVROLET SILVERADO owner · ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM · Filed 04/15/2019

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

2
'08

Common Causes on CHEVROLET SILVERADO

Based on NHTSA complaint component analysis for this vehicle.

FUEL/PROPULSION SYSTEM 50%
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 50%

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does U0109 mean on a CHEVROLET SILVERADO? ▾
U0109 indicates: Lost Communication With Fuel Pump Control Module A. This is a network communication code. 2 CHEVROLET SILVERADO owners have reported this to NHTSA.
What are the most common causes of U0109 on CHEVROLET SILVERADO? ▾
Based on 2 NHTSA reports, the most commonly cited components are: Fuel/Propulsion System, Electrical System,Fuel/Propulsion System. These percentages are based on the component field in owner complaints.
Is U0109 serious on my CHEVROLET SILVERADO? ▾
Of 2 NHTSA reports for this code on CHEVROLET SILVERADO, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.
What should I do if my CHEVROLET SILVERADO shows U0109? ▾
1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

U0109 on Other Vehicles

→ All codes reported on CHEVROLET SILVERADO