Error Code P064A: What It Means & What To Do?

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Do you know what this code P064A refers to? A decreased engine performance refers to a Fuel Pump control module, which controls the fuel pump based upon the request of the Engine Control module. This is a general type of trouble code which is applicable to OBD- II vehicles. Although it’s a common trouble code, the repair steps will vary depending on your vehicle’s make and make and the year it was manufactured. If the PCM (Powertrain control module) is functioning ineffectively, then the P064A code will be set.

If the P064A code is stored in your vehicle then it means that the fuel pump control module is malfunctioning. It is responsible for the proper supply and circulation of voltage to the fuel pump and fuel pump relay. The fuel pump controller is a stand-alone module but it can also be integrated into the PCM. Pressurized fuel is sent into the fuel injection system by the fuel pump which is located inside the fuel tank. The PCM energizes on the start of the ignition, and multiple controller self-tests are carried out. By carrying out these tests, the PCM can examine the serial data which is carried over the Controller area network (CAN) to make sure that the on-board controllers are in line.

What causes this problem with the Fuel Pump Control Module?

• Damaged fuel pump controller or PCM
• The voltage supply circuit of the fuel pump control module is open
• The voltage shut off switch of the fuel pump is bad or tripped
• Error in the PCM programming
• The fuel pump control circuit is open or shorted

1. Fuel Pump Control Module - Check for any openings or damages in the fuel pump control module. If you come across any, replace them or fix the issue.
2. Fuel Pump Harness - If there are any broken / shorted / open joints they have to be fixed immediately.
3. Fuel Pump - A faulty or defective fuel pump can give rise to the P064A error code. Get the right replacement part for your vehicle from Parts Avatar.

Interested in knowing the symptoms to old code P064A? If yes, then you have arrived at the right place. We at Parts Avatar have listed out few common symptoms associated with Fuel Pump Control Module.

Common Symptoms

• The engine delays when you try starting it
• There is no availability of start condition
• Drivability issues in the engine
• Other codes that are stored

Have a look at some ways with which you can correct the P064A code:

• Replacing the fuel pump control circuit / harness

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Here are some steps which you should follow in order to diagnose this P064A fault code:

• First you have to connect the scanner to the diagnostic port of the vehicle and retrieve all the codes that are stored and freeze frame data. Write down this code, as it can be an irregular connection. Once all the relevant information is recorded, test drive your vehicle again, until it is reset and PCM is ready.
• It will be difficult to diagnose if the PCM enters the readiness mode as it is irregular. The reason which allowed the P064A code to be stored has to worsen before an accurate diagnosis is made. Continue the diagnosis if the code resets.
• With the help of vehicle information, you have to obtain the connector face views, connector pinout charts, component locators, and diagrams of wire and diagnostic flow charts which relates to the code.
• If the fuel pump control circuit has no voltage or ground (though all the fuses and relays function normally) then you have to visually inspect the controller related wires and joints. You can also check the engine ground junctions and chassis. With the help of your vehicle information gather info on circuits related to ground locations.
• If both the voltage and ground is available in the fuel pump control circuit, check the system controller if there are any signs of water, collision damage and heat. If there are any damages in the controller, then it can be defective.

Common Mistakes When Diagnosing the P064A Code

• The fuel pump control module has failed
• Powertrain control module has failed
• Issues in wiring