• Engine stalling
• Poor fuel efficiency
• Check Engine Light illuminated
• Faulty Fuel Pump Control Module
• Wiring issues between the PCM and FPCM
• Faulty PCM
PCM: Powertrain Control Module
FPCM: Fuel Pump Control Module
• U0109
• P0230
This code means that a part of the car's computer system isn't talking to another part like it should. It's like when two friends aren't talking to each other and can't share important information.
The U0628 code indicates a lost communication with the fuel pump control module.
U0628 is a communication error code that signifies the vehicle's main control module (often the Powertrain Control Module, or PCM) has lost communication with the Fuel Pump Control Module (FPCM). This can affect the vehicle's ability to manage fuel delivery properly.
• Check for other codes that might be present.
• Inspect the wiring and connections between the PCM and FPCM.
• Test the functionality of the Fuel Pump Control Module.
• Repair or replace damaged wiring or connectors.
• Replace the Fuel Pump Control Module if faulty.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram
$150 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect wiring harnesses for damage.
• Ensure all electronic modules are updated with the latest firmware.
• Keep the vehicle's battery and charging system in good condition.
Communication Error
• Do not ignore the Check Engine Light; get the vehicle diagnosed promptly.
• Avoid driving the vehicle if it shows symptoms of stalling.
• Consult a professional mechanic if unsure about the repairs.
Check if your vehicle's warranty covers electronic module failures or communication issues.
Communication errors like U0628 have become more common as vehicles have become more reliant on complex electronic systems.
Moderate – While the vehicle may still operate, ignoring this issue can lead to more severe problems.
Driving with unresolved communication errors can lead to unexpected vehicle behavior, potentially causing unsafe driving conditions.
• Vehicle ignition on, engine off
• Vehicle in a safe, stationary position
The Fuel Pump Control Module is typically located near the fuel tank or integrated within the fuel pump assembly.
Q: Can I drive with a U0628 code?
A: It's not recommended to drive with this code active, as it can lead to stalling and other performance issues.
Q: How do I clear a U0628 code?
A: After repairs, the code can be cleared using an OBD-II scanner. However, ensure the issue is resolved to prevent the code from returning.
