P0627 Chevrolet Code - Fuel Pump Speed Output Circuit
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
- P0627 Chevrolet indicates Fuel Pump Speed Output Circuit.
- 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 P0627 Chevrolet Description
What are the Possible Causes of the DTC P0627 Chevrolet?
- 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 P0627 Chevrolet?
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 P0627 Chevrolet 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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Information for Specific Chevrolet Models
- P0627 2014 Chevrolet Silverado — Fuel Pump Speed Output Circuit
- P0627 2015 Chevrolet Silverado — Fuel Pump Speed Output Circuit
- P0627 2016 Chevrolet Silverado — Fuel Pump Speed Output Circuit
- P0627 2017 Chevrolet Silverado — Fuel Pump Speed Output Circuit
- P0627 2018 Chevrolet Silverado — Fuel Pump Speed Output Circuit
Frequently Asked Questions about P0627 Chevrolet Code
1. What does the OBDII code P0627 mean for a Chevrolet?
P0627 indicates an issue with the fuel pump speed output circuit, signaling that the fuel pump relay or control module is not functioning properly.
2. What are the common symptoms of code P0627 in a Chevrolet?
Symptoms include engine stalling, difficulty starting, decreased fuel efficiency, and the Check Engine Light turning on.
3. What causes code P0627 to appear in a Chevrolet?
Common causes include a faulty fuel pump relay, damaged wiring or connectors in the fuel pump circuit, or a malfunctioning fuel pump control module.
4. Can a bad fuel pump cause the P0627 code on a Chevrolet?
Yes, a failing fuel pump can trigger this code if it cannot maintain proper speed or pressure due to electrical or mechanical issues.
5. How do you diagnose code P0627 on a Chevrolet?
Diagnosis involves checking the fuel pump relay, inspecting wiring and connectors for damage, and testing the fuel pump control module for proper operation.
6. Is it safe to drive with code P0627 on a Chevrolet?
Driving with this code is risky as it may lead to engine stalling or complete failure to start, leaving you stranded.
7. How is code P0627 typically repaired on a Chevrolet?
Repairs may include replacing the fuel pump relay, repairing or replacing damaged wiring and connectors, or replacing the fuel pump control module.
8. Will clearing the P0627 code fix the problem in a Chevrolet?
Clearing the code without addressing the underlying issue will not fix the problem, and the code will likely return.
9. How much does it cost to fix code P0627 on a Chevrolet?
Repair costs vary but may range from $100 to $400, depending on whether the fuel pump relay, wiring, or control module requires replacement.
10. Can code P0627 be caused by a software issue in a Chevrolet?
Although rare, a software issue in the vehicle’s ECM or fuel pump control module can cause this code and may require reprogramming.
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