P025B OBD Error Code: Problem & Solutions

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It is the fuel pump control module which would monitor the duty cycle and frequency of the signal which it would receive from the PCM. The fuel pump control module would then determine of the signal from the powertrain control module on the fuel pump command circuit is a valid duty cycle as well as frequency. Now if the duty cycle or the frequency turns out to be invalid, then the fuel pump control module would send a 20% duty cycle signal on the fuel pump monitor so that it can further report the concern to the powertrain control module. The test would fail when the fuel pump control module is still reporting that it is receiving an invalid duty cycle or frequency from the powertrain control module.

The OBD-II code P025B can be defined as a Fuel Pump Module Control Circuit Range/Performance. It is the engine computer which is also known as powertrain control module would supply voltage to the fuel pump control module. If there is some issue with the voltage supply to the fuel pump module, then P025B code would be set.

What causes this problem with the Fuel Pump Module Control Circuit Range/Performance?

• The fuel pump might be defective
• There can be some debris in the fuel pump screen
• Issues related to wiring
• The fuel pump command might have some faults
• Fuel pump command harness might be opened or shorted
• There can be poor electrical connection in the fuel pump command circuit
• Some defaults in the fuel pump module
• There can be some problems with the connector as it might be melted, disconnected and intermittent connections etc
• Defects in the powertrain control module

1. Fuel Pump - A faulty Fuel Pump can be troublesome. You can always rely on us as we have best car Fuel Pumps for our customers.
2. Fuel System - If everything is alright with ECM, then there is surely some defect in Car Fuel System. Get it replaced before the situation gets worse.
3. Engine Control Module - P025B code can display due to some faults in the Engine Control Module. So, it is very important to replace the Engine Control Module with us at equitable prices.
4. Fuel Pressure Regulator - Do you remember when was the last time you got your car Fuel Pressure Regulator inspected up? A faulty Fuel Pressure Regulator can cause a lot of issues like displaying P025B code.
5. Powertrain Control Module - Poor Powertrain Control Module can cause a lot of difficulties, so why not get it replaced at time?
6. Air Fuel Ratio Sensor - Are there some faults in your Air Fuel Ratio Sensor? Don’t waste time and get them replaced or else P025B code can turn up.

For us our customers are everything, and that’s why we will help you to diagnose P025B code by mentioning some important symptoms below:

Common Symptoms

• There can difficulties in starting the car engine
• Illumination in the check engine light
• The overall fuel mileage might be bad
• Issue of hard start
• The engine performance might start decreasing
• Inaccurate amount of fuel level
• Fuel smell can start coming
• The car engine might start stalling

If you wish to correct this OBD error code P025B with your vehicle, you might need few parts to correct it. to help you out with that, we at Parts Avatar have worked out a list of few common replacements that you might need to undergo.

• Make sure that you replace the defective fuel pump
• The fuel pressure regulator should be repaired or replaced
• Replace the air fuel ratio sensor
• You can always replace defective engine control module

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of fuel pump control module, oil pump, fuel pressure tester and a lot more. We are sure that now all your issues would be resolved.

The things which you would require to diagnose and repair the fuel pump circuits and systems are as follows:

• An OBD code reader
• A multimeter
• A socket set
• Basic ratchet and wrench sets
• Primary screwdriver set
• Battery terminal cleaner
• A service manual will also be required

Have a look at some safety tips which should be followed:

• First of all, you must let the car engine cool down
• The wheels should be checked
• Make sure that you wear personal protective equipment

There is an extremely easy backyard diagnosing approach if you find out that your car is not starting. If there is a fuel pump mounted inside the fuel tank of your vehicle, then you should give the tank a hit with a rubber mallet so that the debris is dislodged out of the pump while someone can try to start the vehicle.

Now if your vehicle fries up when you are doing this, then your diagnosing is complete and there would be a need to replace the fuel pump.

Keep this thing in mind that whenever diagnosing or repairing anything involves the fuel system, then you must make sure that there are no fuel leaks present. Using metal tools while working around the fuel is an avoidable hazard. So be aware!