[SOLVED] P11Ff Code: Fuel Pump Command Signal Incorrect – How To Fix It!

The automobile fault code P11FF indicates a problem with the fuel pump. When this code appears, the engine light or service engine soon warning light will turn on.

The possible causes of this issue include a faulty fuel pump, an open or shorted fuel pump harness, or a poor electrical connection in the fuel pump circuit. To fix this problem, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look for any broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this issue is estimated to be around 1.0 hour. By addressing this fault code promptly, you can ensure the proper functioning of your vehicle’s fuel system.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p11ff fault code.

  • The symptoms of the automobile fault code p11ff include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p11ff can be caused by a faulty fuel pump, an open or shorted fuel pump harness, or a poor electrical connection in the fuel pump circuit.

  • The fault code p11ff can be caused by the following: a faulty fuel pump, an open or shorted fuel pump harness, and poor electrical connection in the fuel pump circuit.

To fix the automobile fault code p11ff, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p11ff, you need to follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • 5.
  • Repairing this fault code is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p11ff are the estimated repair time and the hourly rate charged by auto repair shops. The estimated repair time for this fault code is 1.0 hour. Auto repair shops typically charge between $75 and $150 per hour for their services.

These factors will determine the overall cost of diagnosing and fixing the p11ff fault code.

The P11FF fault code is related to the fuel pump command signal message counter. In normal vehicle operation, control modules communicate with each other through serial data circuits.

They exchange operating information and commands. Each module keeps track of transmit and receive error counters. When errors are detected, the counter values increase, and they decrease with error-free messages.

If the fuel pump command signal message counter is incorrect, the P11FF code will be set. This code indicates a problem with the fuel pump command signal communication.

What are the possible causes of the automobile fault code p11ff?

If you see the engine light or service engine soon warning light on, the fault code P11FF could be the culprit. This code is often caused by a faulty fuel pump or issues with the fuel pump harness, such as it being open or shorted. To fix this problem, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. It’s important to address these possible causes to resolve the issue.

How can I visually inspect the wiring harness and connectors to fix the p11ff fault code?

If you’re dealing with the p11ff fault code and your engine light is on, it’s time to take action. The most common causes for this code are a faulty fuel pump, an open or shorted fuel pump harness, or a poor electrical connection in the fuel pump circuit. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are out of place. Don’t delay, get to the bottom of this issue and get your engine running smoothly again.

What should I look for when checking for damaged components and connector’s pins to resolve the p11ff fault code?

When dealing with the p11ff fault code, it’s important to address the issue promptly. Start by checking for symptoms like the Engine Light being ON or the Service Engine Soon Warning Light. The cause of this fault code could be a faulty fuel pump, an open or shorted fuel pump harness, or a poor electrical connection in the fuel pump circuit. To resolve the issue, visually inspect the related wiring harness and connectors. Pay close attention to damaged components and look for any broken, bent, pushed out, or corroded connector’s pins.

p11ff error fault code explained

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty fuel pump, an open or shorted fuel pump harness, or a poor electrical connection in the fuel pump circuit.

To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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