P0627 2016 GMC Sierra 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 2016 GMC Sierra 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P0627 2016 GMC Sierra?
- 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 2016 GMC Sierra?
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 2016 GMC Sierra 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 P0627 2016 GMC Sierra Code
1. What does the OBDII code P0627 mean on a 2016 GMC Sierra?
P0627 indicates an issue with the fuel pump speed output circuit, which suggests that the Engine Control Module (ECM) has detected a malfunction in the fuel pump control system.
2. What are the common symptoms of code P0627 in a 2016 GMC Sierra?
Symptoms may include difficulty starting, stalling, reduced engine performance, poor fuel economy, or the Check Engine Light being illuminated.
3. What causes the P0627 code to appear in a 2016 GMC Sierra?
Common causes include a faulty fuel pump, damaged wiring or connectors in the fuel pump circuit, a failed ECM, or a malfunctioning fuel pump relay.
4. Can I drive my 2016 GMC Sierra with a P0627 code?
Driving with a P0627 code is not recommended, as it may lead to stalling or further damage to the fuel pump system, potentially leaving you stranded.
5. How do I fix the P0627 code on a 2016 GMC Sierra?
Repairs may include inspecting and repairing wiring or connectors in the fuel pump circuit, replacing a faulty fuel pump, or replacing a defective ECM if necessary.
6. How can I diagnose the P0627 code on my 2016 GMC Sierra?
Start by checking the wiring and connectors for damage or corrosion, testing the fuel pump relay, and using a multimeter to measure voltage at the fuel pump. Verify the ECM functionality if other components check out.
7. What tools are needed to diagnose the P0627 code in a 2016 GMC Sierra?
You’ll need an OBDII scanner, a multimeter, and possibly a wiring diagram for the fuel pump circuit to properly diagnose the issue.
8. How much does it cost to repair a P0627 code on a 2016 GMC Sierra?
Repair costs depend on the root cause but may range from $50 for a simple wiring repair to $1,000 or more if the fuel pump or ECM needs replacement.
9. Can a bad fuel pump cause the P0627 code in a 2016 GMC Sierra?
Yes, a failing or faulty fuel pump is a common cause of the P0627 code as it directly impacts the fuel pump speed output circuit.
10. Will clearing the P0627 code fix the problem on my 2016 GMC Sierra?
Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be resolved to prevent the code from returning.
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