P025C Fault Code

P025C OBD-II Trouble Code Short Description

Fuel Pump Module Control Low

What does trouble code P025C mean?

The P025C error code indicates a problem with the fuel pump module control circuit. This code usually signifies that the voltage reading at the fuel pump controller is below the manufacturer’s specification. This can happen because of a defective fuel pump control module or a loose or damaged wiring.

To fix this issue, the first step is to inspect the wiring and connections between the fuel pump controller and the fuel pump. Any loose or corroded connections should be cleaned or repaired as needed.

If the wiring is in good condition, the next step to take is to inspect the fuel pump control module itself. In some cases, this module may be faulty and need to be replaced.

It is recommended to have a professional mechanic diagnose and fix this issue because it can be dangerous and may cause a fire or explosion if not correctly repaired.


What are the symptoms of the P025C code?

The symptoms of a P025C fault code may include:

  • Check Engine Light illuminated
  • Engine stalling or rough idling
  • Decreased fuel efficiency
  • Difficulty starting the engine
  • Sudden loss of power while driving

It is important to address this code promptly as it can lead to further damage to the fuel system and potentially cause safety concerns while driving.


What causes the P025C code?

The P025C fault code indicates that there is a problem with the fuel pump module control circuitry, specifically low voltage. This can be caused by a variety of issues, such as a faulty fuel pump relay, damaged wiring in the fuel pump module, a failed fuel pump control module, or a problem with the fuel pump itself. A diagnostic scan tool is required to properly diagnose the issue and pinpoint the underlying cause of the fault code.

Possible Solutions

How to fix P025C?

Possible ways to fix P025C fault code on cars are:

  1. Check the fuel pump module control circuit for any loose connections, damaged wirings, or corroded terminals. Repair or replace as necessary.
  2. Inspect the fuel pump relay for proper function. Replace if faulty.
  3. Check the fuel pressure and volume using a fuel pressure gauge. If it's low, the fuel pump may not be working correctly. Check the fuel pump itself and replace if needed.
  4. Use a scan tool to diagnose the fuel pump module control system and check for any stored fault codes. Follow the recommended diagnostic and repair procedures based on the code description.
  5. Replace the fuel pump module if it's confirmed to be defective or malfunctioning.

It's recommended to consult a professional mechanic or authorized service center for proper diagnosis and repair of P025C fault code.