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Engine-Codes – Generic – P025C

P025C Code - Fuel Pump Module Control Circuit Low

Quick Answer

The P025C diagnostic trouble code (DTC) indicates a problem with the fuel pump module control circuit being detected as operating at a lower voltage than expected. Common causes include Faulty fuel pump module, Wiring or connection issues in the fuel pump module control circuit, Corrosion or damage to electrical connectors. 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
P025C indicates Fuel Pump Module Control Circuit Low.
Common causes
Common causes include Faulty fuel pump module, Wiring or connection issues in the fuel pump module control circuit, Corrosion or damage to electrical connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P025C Description

The P025C diagnostic trouble code (DTC) indicates a problem with the fuel pump module control circuit being detected as operating at a lower voltage than expected. The fuel pump module is responsible for regulating the flow of fuel from the tank to the engine, ensuring proper fuel delivery for combustion. When the control circuit is operating at a low voltage, it can lead to issues with fuel delivery, potentially causing engine performance problems, reduced fuel efficiency, and even stalling.

OBDII Code P025C - Fuel Pump Module Control Circuit Low
P025C Code - Fuel Pump Module Control Circuit Low

Common Causes of P025C

  1. Faulty fuel pump module.
  2. Wiring or connection issues in the fuel pump module control circuit.
  3. Corrosion or damage to electrical connectors.
  4. Issues with the fuel pump relay.
  5. Faulty engine control module (ECM) or powertrain control module (PCM).

Symptoms of P025C

  1. Check engine light illuminated on the dashboard.
  2. Engine misfires or hesitation during acceleration.
  3. Reduced fuel efficiency.
  4. Engine stalling or difficulty starting.
  5. Rough idling or uneven engine performance.

How to Fix P025C

  1. Begin by diagnosing the specific cause of the P025C code using a scan tool to check for any related codes and conducting a visual inspection of the fuel pump module and its connections.
  2. Test the fuel pump module control circuit for proper voltage and continuity, checking for any wiring or connection issues that may be causing the low voltage condition.
  3. Inspect the fuel pump relay and replace if necessary.
  4. Check for any corrosion or damage to electrical connectors and repair or replace them as needed.
  5. If the issue persists, consider replacing the fuel pump module itself to ensure proper fuel delivery and system operation.

Cost to Fix P025C

The cost of repairing a P025C code can vary depending on the specific cause of the issue and the vehicle make and model. In general, replacing a faulty fuel pump module or addressing wiring issues can range from $200 to $800, including parts and labor. Additional costs may apply if other components need to be replaced or if diagnostic time is required to pinpoint the exact cause of the problem. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's specific needs.

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Code P025C Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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