The part number 5L3T-15604-BA is the Body Security Module (BSM), also known as the Remote Keyless Entry (RKE) Module, for Ford and Lincoln vehicles.

This module is the "brain" for your vehicle's security system, responsible for managing the remote keyless entry, power door locks, and the factory anti-theft alarm. In the F-150, it is typically located behind the rear seat on the driver's side cab wall.

eBay Listing Title

2004-2006 Ford F-150 Body Security Keyless Entry Module BSM OEM 5L3T-15604-BA

Item Specifics

• Brand: Ford (Genuine OEM)

• Manufacturer Part Number: 5L3T-15604-BA

• Interchange Part Number: 5L3T15604BA, 5L3Z-15604-AA

• Placement on Vehicle: Rear, Left (behind rear seat/cab wall)

• Years: 2004, 2005, 2006

• Model: F-150, Lincoln Mark LT

• Features: Controls Keyless Entry, Power Locks, and Anti-Theft Alarm.

Item Description

Genuine Ford F-150 Body Security Module (BSM) | 2004–2006

Up for sale is a factory-original Body Security Module removed from a [Insert Year] Ford F-150. This module is essential for the operation of your remote key fobs and power lock system.

Vehicle Compatibility:

• Ford F-150: 2004 (New Body Style), 2005, 2006

• Lincoln Mark LT: 2006

• Note: This part fits the "New Body Style" 2004 F-150; it will not fit the 2004 Heritage (old body) models.

Condition:

• Tested: Professionally pulled from a vehicle with a fully functioning keyless entry and alarm system.

• Pins: All connector pins are straight, clean, and free of any corrosion.

• Housing: No cracks or damage to the plastic casing.

⚠️ Programming & Door Code Note:

• Security Code: The factory 5-digit door keypad code is usually printed on a white sticker on the front of this module. This is the code you will use to unlock your doors from the outside keypad.

• Programming: While this is a direct physical replacement, you may need to program your existing key fobs to this new module once installed. This is usually a simple DIY process involving cycling the ignition.