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U2616 2016 Chevrolet Silverado Code - Fuel Pump Driver Control Module Lost Communication With ECM

Quick Answer

The U2616 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Fuel Pump Driver Control Module (FPDM) has lost communication with the Engine Control Module (ECM). Common causes include Faulty Fuel Pump Driver Control Module, Loose or corroded electrical connections between FPDM and ECM, Defective ECM. 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
U2616 2016 Chevrolet Silverado indicates Fuel Pump Driver Control Module Lost Communication With ECM.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Loose or corroded electrical connections between FPDM and ECM, Defective ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code U2616 2016 Chevrolet Silverado Description

The U2616 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Fuel Pump Driver Control Module (FPDM) has lost communication with the Engine Control Module (ECM). The FPDM is responsible for controlling the fuel pump operation, ensuring the correct fuel pressure is maintained for the engine's performance. The ECM, on the other hand, is the central computer that manages various engine functions and communicates with other modules in the vehicle.

OBDII Code U2616 2016 Chevrolet Silverado - Fuel Pump Driver Control Module Lost Communication With ECM
U2616 2016 Chevrolet Silverado Code - Fuel Pump Driver Control Module Lost Communication With ECM

Common Causes of U2616 2016 Chevrolet Silverado

  1. Faulty Fuel Pump Driver Control Module
  2. Loose or corroded electrical connections between FPDM and ECM
  3. Defective ECM
  4. Wiring harness issues
  5. Software glitches or communication errors between modules

Symptoms of U2616 2016 Chevrolet Silverado

  1. Engine stalling or hesitation
  2. Difficulty starting the vehicle
  3. Reduced fuel efficiency
  4. Check Engine Light illuminated
  5. Rough idling or misfires

How to Fix U2616 2016 Chevrolet Silverado

  1. Begin by conducting a thorough inspection of the electrical connections between the FPDM and ECM. Ensure all connections are secure, clean, and free of corrosion.
  2. Check the wiring harness for any signs of damage or wear. Repair or replace any damaged wiring as needed.
  3. Test the FPDM and ECM for proper functionality using a diagnostic scan tool. Replace any faulty modules.
  4. Clear the DTC from the vehicle's memory using the scan tool and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, consult a professional mechanic for further diagnosis and repair.

Cost to Fix U2616 2016 Chevrolet Silverado

The typical repair costs for addressing a U2616 code on a 2016 Chevrolet Silverado can range from $200 to $600, including parts and labor. However, it is essential 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, but rates may be higher in metropolitan areas or at dealerships. Independent shops often offer lower labor rates. It is advisable to obtain local estimates for a more accurate cost assessment.

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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 U2616 2016 Chevrolet Silverado Code

1. What does the OBDII code U2616 on a 2016 Chevrolet Silverado indicate?

The code U2616 indicates that there is a communication problem between the Fuel Pump Driver Control Module and the Engine Control Module (ECM).

2. What are the common symptoms of U2616 code on a 2016 Chevrolet Silverado?

Common symptoms of the U2616 code may include issues with starting the vehicle, engine stalling, poor engine performance, and the check engine light being illuminated.

3. What are the possible causes of the U2616 code on a 2016 Chevrolet Silverado?

Possible causes of the U2616 code include damaged wiring or connectors between the Fuel Pump Driver Control Module and ECM, a faulty Fuel Pump Driver Control Module, or a malfunctioning ECM.

4. How can I diagnose the U2616 code on my 2016 Chevrolet Silverado?

Diagnosing the U2616 code typically involves using an OBDII scanner to retrieve the code, checking the wiring and connectors for any damage, testing the Fuel Pump Driver Control Module, and ensuring proper communication between modules.

5. Can I still drive my 2016 Chevrolet Silverado with the U2616 code present?

It is not recommended to drive the vehicle with the U2616 code present, as it can lead to potential issues with the fuel delivery system and engine performance.

6. How can I repair the U2616 code on my 2016 Chevrolet Silverado?

Repairing the U2616 code may involve repairing or replacing damaged wiring or connectors, replacing the Fuel Pump Driver Control Module, or reprogramming the ECM to restore communication between modules.

7. Is it possible to reset the U2616 code on a 2016 Chevrolet Silverado without repairs?

While you can clear the code with an OBDII scanner, it is important to address the underlying issue causing the U2616 code to prevent further problems.

8. How much does it cost to repair the U2616 code on a 2016 Chevrolet Silverado?

The cost of repairing the U2616 code can vary depending on the specific issue, labor costs, and parts needed. It is advisable to consult a mechanic for an accurate estimate.

9. Can a DIY enthusiast fix the U2616 code on a 2016 Chevrolet Silverado?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the U2616 code by following repair guides and procedures. However, complex issues may require professional assistance.

10. How can I prevent the U2616 code from recurring on my 2016 Chevrolet Silverado?

Regular maintenance, such as checking wiring integrity, keeping connectors clean, and ensuring proper module communication, can help prevent the U2616 code from recurring in the future.

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