P0628 RAM Code - Low Voltage Detected At The Fuel Lift Pump
Quick Answer
The Powertrain Control Module (PCM) monitors the Fuel Lift Pump. Common causes include Faulty Fuel Lift Pump, Fuel Lift Pump harness is open or shorted, Fuel Lift Pump 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 RAM indicates Low Voltage Detected At The Fuel Lift Pump.
- Common causes
- Common causes include Faulty Fuel Lift Pump, Fuel Lift Pump harness is open or shorted, Fuel Lift Pump 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 RAM Description
What are the Possible Causes of the DTC P0628 RAM?
- Faulty Fuel Lift Pump
- Fuel Lift Pump harness is open or shorted
- Fuel Lift Pump circuit poor electrical connection
How to Fix the DTC P0628 RAM?
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 RAM 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 RAM Code
1. What are common symptoms of OBDII code P0628 related to low voltage detected at the fuel lift pump?
- Common symptoms include hard starting, engine stalling, loss of power, and potential fuel pump issues.
2. What are the possible causes of OBDII code P0628 indicating low voltage at the fuel lift pump?
- Causes may include a faulty fuel lift pump, damaged wiring or connectors, a weak battery, or a failing fuel pump relay.
3. How can I diagnose the issue causing OBDII code P0628 related to low voltage at the fuel lift pump?
- Diagnosis involves checking the fuel pump circuit for proper voltage, inspecting wiring for damage, testing the fuel pump relay, and ensuring the battery is in good condition.
4. What are the implications of driving with OBDII code P0628 triggered by low voltage at the fuel lift pump?
- Driving with this code can lead to engine performance issues, potential stalling, and ultimately, fuel delivery problems that may leave you stranded.
5. How can I repair OBDII code P0628 associated with low voltage detected at the fuel lift pump?
- Repair options include replacing the fuel lift pump, repairing or replacing damaged wiring or connectors, checking and possibly replacing the fuel pump relay, and ensuring a healthy battery.
6. Can a DIY enthusiast fix OBDII code P0628 caused by low voltage at the fuel lift pump?
- Depending on the skill level and tools available, some DIY enthusiasts may be able to address this issue by following proper diagnostic procedures and making necessary repairs.
7. Is it safe to continue driving my vehicle with OBDII code P0628 indicating low voltage at the fuel lift pump?
- It is not recommended to drive your vehicle with this code active, as it can lead to potential fuel system failures and unsafe driving conditions.
8. How much does it typically cost to repair OBDII code P0628 related to low voltage at the fuel lift pump?
- The cost of repairs can vary depending on the root cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.
9. Are there any preventive measures to avoid triggering OBDII code P0628 due to low voltage at the fuel lift pump?
- Regular maintenance, such as checking the fuel system components, keeping the battery in good condition, and addressing any electrical issues promptly, can help prevent this code from occurring.
10. Can OBDII code P0628 be intermittent or permanent when related to low voltage at the fuel lift pump?
- The code can appear intermittently if the issue is sporadic, but it may become permanent if the underlying problem persists or worsens over time.
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