P0627 Toyota Code - Fuel Pump Control Circuit Open
Quick Answer
The Engine Control Module (ECM) monitors the Fuel Pump Control Circuit. Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump harness is open or shorted. 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 Toyota indicates Fuel Pump Control Circuit Open.
- Common causes
- Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump harness is open or shorted.
- 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 Toyota Description
What are the Possible Causes of the DTC P0627 Toyota?
- Faulty fuel pump relay
- Faulty fuel pump
- Fuel pump harness is open or shorted
- Fuel pump circuit poor electrical connection
- Faulty fuel pump control module (if applicable)
How to Fix the DTC P0627 Toyota?
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 Toyota 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.
Need more information about the P0627 Toyota code?
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Frequently Asked Questions about P0627 Toyota Code
1. What are common symptoms of OBDII code P0627 in a Toyota related to the fuel pump control circuit?
- Common symptoms include engine stalling, difficulty starting the vehicle, and a lack of power while driving.
2. What are the possible causes of the OBDII code P0627 in a Toyota indicating a fuel pump control circuit open?
- Possible causes include a faulty fuel pump driver module, damaged wiring or connectors in the fuel pump circuit, or a malfunctioning fuel pump.
3. How can I diagnose the OBDII code P0627 in my Toyota related to the fuel pump control circuit?
- Diagnose the code by checking the fuel pump fuse, inspecting the wiring and connectors for damage, and testing the fuel pump driver module for proper operation.
4. Can a DIY enthusiast repair the OBDII code P0627 in a Toyota on their own?
- While some simple checks like inspecting fuses and connectors can be done by DIY enthusiasts, diagnosing and repairing issues in the fuel pump control circuit may require professional expertise.
5. Are there any safety precautions to keep in mind when working on the fuel pump control circuit in a Toyota with OBDII code P0627?
- Prior to working on the fuel pump circuit, it's important to disconnect the vehicle's battery to prevent electrical accidents and fires.
6. How critical is it to address the OBDII code P0627 in a Toyota indicating a fuel pump control circuit open?
- Addressing the code promptly is crucial to ensure proper fuel delivery to the engine, prevent stalling, and maintain the vehicle's overall performance.
7. What are some repair tips for resolving the OBDII code P0627 in a Toyota related to the fuel pump control circuit?
- Repair tips include checking for loose or corroded connectors, replacing damaged wiring, and testing the fuel pump driver module for functionality.
8. Can a malfunctioning fuel pump driver module cause the OBDII code P0627 in a Toyota?
- Yes, a malfunctioning fuel pump driver module can cause the fuel pump control circuit to remain open, triggering the OBDII code P0627.
9. Will driving a Toyota with the OBDII code P0627 lead to further damage if left unaddressed?
- Continuing to drive with the code may lead to issues like engine misfires, poor fuel economy, and potential damage to the fuel pump components.
10. How can a mechanic reset the OBDII code P0627 in a Toyota after repairing the fuel pump control circuit issue?
- After repairing the fuel pump control circuit problem, a mechanic can reset the OBDII code P0627 using a diagnostic scan tool to clear the error code from the vehicle's computer system.
Discuss the causes and fixes for P0627 Toyota OBDII Code
-
Got this P0627 code on my '04 Rav4. It comes and goes - only consistancy seems to be that it occurs when we have damp weather.
Help - any ideas how to fix?
Thanks
Richard -
I suggest starting by replacing the fuel pump relay. The damp weather can poor or short connection at the relay contacts.
-
Hi. I have a 2006 hilux. It has a problem where the engine will stop and the P0627 code presents. I can start the engine again but it might happen a few times. It will happen a few minutes after I start driving but once I get through the first ten minutes or so I'm all good. I yesterday replaced a battery that was in very poor condition in the hope that inconsistent charge might have caused or contributed to the problem but it's still happening.
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