2023年7月24日 · The U0109 code stands for “Lost Communication with Fuel Pump Control Module (FPCM).” This code is usually triggered when the TCM and ECM are unable to communicate with the FPCM, which is responsible for controlling the fuel pump.

If unable to communicate with the GPCM module, then the U0109 code that the other modules are setting is active, and the problem is there now. The most common failure is loss of power or ground. Check all fuses that power up the FPCM module on this vehicle.

To solve the U0109 fault code, check the wiring and connections of the transmission control module and replace it if necessary. Steps to fix are listed inside.

2023年8月9日 · The common causes of the U0109 code include a bad fuel pump control module, wiring issues, and data network issues. U0109 code symptoms are an illuminated check engine light and the engine cranking but failing to start.

2024年10月4日 · When you see a U0109 code, you might notice your engine misfiring, losing power, using more fuel, or having trouble starting. These problems mean that the Fuel Pump Control Module (FPCM) and the Engine Control Module (ECM) aren’t talking to each other properly, which can really mess up how your engine runs.

A U0109 code is a serious code that can prevent your vehicle from starting or running. If the problem is not resolved, it could result in a complete loss of communication between control modules on your vehicle. This could mean that your engine will not start, or that certain functions and features of your car may not work properly.

2020年7月2日 · How to Fix the DTC U0109 Ford? Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded. What does this mean? What is the Cost to Diagnose the Code?

2020年3月30日 · Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Need more information about the U0109 code? Need more information on how to fix the U0109 code? Get Access to Factory Service Manuals. No comments found for this page.

2024年3月22日 · OBD gave the U0109 code. Throughout this entire process the truck runs PERFECT.... I have replaced the FPCM, cleaned all grounds I can find, had the fuse 27 relocate TSB done, and cannot get the check engine or service light to go out...

2018年12月1日 · U0109 - Lost Communication With Fuel Pump Control Module A Description: The PCM monitors the fuel pump monitor (FPM) circuit for the presence of a duty cycled signal. If the FPM circuit is fixed at a low or high voltage, the PCM begins to increment a counter.