U2616 2014 Chevrolet Silverado Code - Fuel Pump Driver Control Module Lost Communication With ECM
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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
- U2616 2014 Chevrolet Silverado indicates Fuel Pump Driver Control Module Lost Communication With ECM.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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.
Code U2616 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC U2616 2014 Chevrolet Silverado?
- Faulty Engine Control Module (ECM)
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
- Faulty Fuel Pump Driver Control Module
How to Fix the DTC U2616 2014 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 U2616 2014 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.
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Frequently Asked Questions about U2616 2014 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code U2616 in a 2014 Chevrolet Silverado?
- Common symptoms include issues with the fuel pump operation, engine stalling, rough idling, and the Check Engine light illuminating.
2. What does the OBDII code U2616 "Fuel Pump Driver Control Module Lost Communication With ECM" indicate?
- This code indicates a communication problem between the fuel pump driver control module and the Engine Control Module (ECM) in the vehicle.
3. What are the possible causes of OBDII code U2616 in a 2014 Chevrolet Silverado?
- The code U2616 can be triggered by issues such as damaged wiring, faulty fuel pump driver control module, ECM failure, or poor electrical connections.
4. How can I diagnose the cause of OBDII code U2616 in my 2014 Chevrolet Silverado?
- Diagnose the code by checking the wiring connections, inspecting the fuel pump driver control module, conducting a scan tool test, and verifying the ECM functionality.
5. Can I still drive my 2014 Chevrolet Silverado with OBDII code U2616 present?
- It is not recommended to drive the vehicle with this code active as it may lead to potential fuel pump issues and engine performance problems.
6. How can I repair OBDII code U2616 in my 2014 Chevrolet Silverado?
- Repair options include fixing or replacing damaged wiring, replacing the fuel pump driver control module, addressing ECM issues, and ensuring proper electrical connections.
7. Is it safe to reset the OBDII code U2616 in a 2014 Chevrolet Silverado without fixing the underlying issue?
- It is not advisable to simply reset the code without addressing the root cause, as the problem may persist and lead to further complications.
8. Are there any preventive measures to avoid OBDII code U2616 in a 2014 Chevrolet Silverado?
- Regular maintenance checks, timely repairs of wiring and components, and ensuring proper electrical system health can help prevent the occurrence of this code.
9. Will OBDII code U2616 in a 2014 Chevrolet Silverado affect fuel efficiency?
- Yes, this code can affect fuel efficiency due to potential fuel pump malfunctions and engine performance issues associated with the communication error.
10. Can a DIY enthusiast fix OBDII code U2616 in a 2014 Chevrolet Silverado?
- While some basic checks like inspecting wiring connections can be done by a DIY enthusiast, diagnosing and repairing the root cause may require professional expertise and tools.
Discuss the causes and fixes for U2616 2014 Chevrolet Silverado OBDII Code
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I had a StabiliLink error on my 2014 Silverado 1500 and the shop replaced the RR wheel sensor and replaced 8’ of wire for the LR wheel sensor which squirrels chewed. Error cleared. When I picked up the truck, the CEL was on and it has U2616 error. The shop said the fuel pump module needs replacing. Pretty coincidental it happened after they worked on it. Before spending $1000, I want to make sure the pump is actually the cause.
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The U2616 error code generally indicates a communication issue, specifically a "Lost Communication with Fuel Pump Driver Control Module." This code can sometimes result from wiring issues, module malfunctions, or poor connections rather than the fuel pump module itself. Given the recent repairs and the shop's work near wiring, it's possible the issue could relate to a disturbed connection or even residual damage from squirrels.
Here’s a suggested approach to help confirm if the fuel pump module is the real issue:
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Check the Wiring and Connectors: Inspect all wiring and connectors related to the fuel pump module, especially the areas near recent repairs. Look for loose connections, corrosion, or signs of damage.
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Clear the Code and Retest: Sometimes, codes persist after repairs and just need clearing. Clear the code and test drive to see if it reappears.
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Module Testing: If the code returns, testing the fuel pump control module for communication errors might help pinpoint if it’s truly the source. A shop with diagnostic tools should be able to perform this test without replacing the module outright.
Given the coincidence, I’d suggest pursuing these steps before committing to a costly module replacement. If issues persist after checking wiring and connections, the module might indeed need replacing.
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