Introduction

The PCM (Powertrain Control Module) fuse and relay are vital components in ensuring the PCM operates smoothly. They act as gatekeepers for the flow of electrical power to the PCM, which is essentially the brain of your F-150’s engine. Having a good grasp of where to locate these essential components is key to effectively diagnosing and resolving any PCM-related problems that may arise in your F-150.

Understanding the PCM Fuse and Relay.

The PCM (Powertrain Control Module) in your Ford F-150 serves as the brain of the vehicle, receiving signals and data from various sensors to efficiently control the engine and transmission. However, if there are issues with the PCM, it can result in a range of problems, including difficulty starting the vehicle, poor engine performance, gear engagement issues, and increased emissions. Before jumping to the conclusion that the PCM is faulty, it’s crucial to check the PCM fuse and relay in your F-150.


Learn more about the location of PCM Fuse and Relay for other year models of the Ford F-150.

Where is the 2015 Ford F-150 PCM Fuse and Relay Located ?

In the 2015 Ford F-150, the PCM fuse and relay are located in under hood fuse box. In the under-dash fuse box, fuse number 45 and 109 which is assigned for the Powertrain control module relay coil and Powertrain control module respectively . Additionally, relay 66 is assigned to the Powertrain control module relay in the under-hood fuse box.

2015 Ford F-150 PCM Relay and Fuse Location.

In the 2015 Ford F-150, the PCM fuse and relay is located in the under-hood fuse panel.

2015 Ford F 150 2.7L EcoBoost Under Hood Fuse Box Location

2015 Ford F 150 2.7L EcoBoost Under Hood Fuse Box Location

2015 Ford F 150 3.5 L EcoBoost Under Hood Fuse Box Location

2015-ford-f-150-3.5L-ecoboost-under-hood-fuse-box-location

2015 Ford F 150 3.5 L Under Hood Fuse Box Location

2015-ford-f-150-3.5-L-under-hood-fuse-box-location

2015 Ford F-150 PCM Relay and Fuse Location in Fuse Box Diagram.

Position of PCM fuse and relay in under hood fuse box as seen below pic.

YearFuse FunctionFuse NoLocation 
2015Powertrain control module relay coil.45Under HoodCheck more about Ford F-150 2015 Fuse Box Diagram and Location.

2015Powertrain control module relay.66Under Hood
2015Powertrain control module.109Under Hood

Conclusion

Familiarizing yourself with the location and function of the PCM fuse and relay can help you troubleshoot and address any PCM related issues efficiently.

WARNING: The terminal and harness assignments for individual connectors may vary depending on the vehicle’s equipment level, model, and market. It is recommended to refer to the fuse box diagram provided at the back of the fuse box cover for accurate information.

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