P0628 2014 Chevrolet Silverado Code - Fuel Pump Speed Output Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) supplies voltage to the fuel pump driver control module for 30 s when the ignition is on and continuously when the engine is running. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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
- P0628 2014 Chevrolet Silverado indicates Fuel Pump Speed Output Circuit Low Voltage.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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 P0628 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0628 2014 Chevrolet Silverado?
- Faulty Fuel Pump Driver Control Module
- Fuel Pump Driver Control Module harness is open or shorted
- Fuel Pump Driver Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0628 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 P0628 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 P0628 2014 Chevrolet Silverado Code
1. What does the OBDII code P0628 mean on a 2014 Chevrolet Silverado?
The P0628 code indicates "Fuel Pump Speed Output Circuit Low Voltage," meaning the fuel pump control module has detected a low voltage issue in the fuel pump speed circuit.
2. What are the common symptoms of code P0628 in a 2014 Chevrolet Silverado?
Symptoms may include difficulty starting the engine, stalling, reduced engine performance, or a check engine light illuminated.
3. What causes the P0628 code to appear on a 2014 Chevrolet Silverado?
Common causes include a faulty fuel pump control module, damaged wiring or connectors in the fuel pump circuit, a failing fuel pump, or a weak battery.
4. Can a bad fuel pump trigger the P0628 code?
Yes, a failing or damaged fuel pump can cause the P0628 code by not responding properly to speed control signals.
5. How can I diagnose the P0628 code on my 2014 Chevrolet Silverado?
Start by checking the battery voltage, inspecting the fuel pump circuit wiring for damage, and testing the fuel pump control module and related components using a multimeter.
6. Is it safe to drive my 2014 Chevrolet Silverado with the P0628 code?
Driving with this code isn't recommended, as it may cause poor performance, stalling, or further damage to the fuel system components.
7. How do I fix the P0628 code on a 2014 Chevrolet Silverado?
Repairs may include replacing damaged wiring or connectors, installing a new fuel pump control module, replacing the fuel pump, or addressing any battery or voltage issues.
8. Can a low battery cause the P0628 code on my 2014 Chevrolet Silverado?
Yes, a weak or failing battery can result in low voltage in the fuel pump circuit, potentially triggering the P0628 code.
9. How much does it cost to repair the P0628 code on a 2014 Chevrolet Silverado?
Repair costs vary but may range from $100 for simple wiring repairs to $500 or more if the fuel pump or control module needs replacement.
10. Do I need to clear the P0628 code after repairs on my 2014 Chevrolet Silverado?
Yes, after completing the repairs, use an OBDII scanner to clear the code and verify that it doesn’t return during a test drive.
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