Module Programming & Repair in Dallas
BCM, FEM, CAS, KVM, FRM, EZS, ESL, EIS — we program, replace, and repair the modules most shops can't touch.
Modern vehicles rely on a network of electronic control modules to manage everything from key recognition to engine starting, lighting, and comfort features. When these modules fail, need replacement, or lose their programming, you need a specialist with dealer-level tools. Dallas Locksmith Pros is Dallas's go-to expert for automotive module programming, replacement, and repair — including BCM, FEM, CAS, KVM, FRM, EZS, ESL, and EIS systems.
What Is Module Programming?
Every modern vehicle contains dozens of electronic control modules — small computers that manage specific systems. When a module is replaced (due to failure, water damage, accident, etc.), the new module must be programmed and coded to the specific vehicle. This involves writing the vehicle's VIN, configuring options, and synchronizing the module with other systems. Without proper programming, a replacement module simply won't work — or will cause cascading faults throughout the vehicle.
Modules We Program & Repair
BCM (Body Control Module): Manages lighting, locks, windows, and key recognition on many vehicles. FEM (Front Electronic Module): BMW's newer body controller — handles key recognition, lighting, and body functions. CAS (Car Access System): BMW's key recognition and engine start authorization module. KVM (Keyless Vehicle Module): Jaguar and Land Rover's smart key and keyless entry controller. FRM (Footwell Module): BMW's module for interior/exterior lighting and comfort functions. EZS (Electronic Ignition Switch): Mercedes' key recognition and start authorization module. ESL/ELV (Electronic Steering Lock): Mercedes' steering column lock module. EIS (Electronic Ignition Switch): Mercedes' ignition control module.
When Do You Need Module Programming?
Common scenarios: a module has been replaced with a new or used unit, the module lost programming after a battery drain or electrical fault, key programming failed due to a module fault, dashboard shows multiple warning lights after a repair, vehicle won't start after module replacement, used module needs to be coded to a different vehicle, and module firmware needs updating to resolve a known issue.
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Frequently Asked Questions
In many cases, yes. We can virgin/reset used modules and reprogram them to your vehicle, which is significantly cheaper than buying new from the dealer.
Yes. This is a common issue when modules aren't properly coded to the vehicle. We program and synchronize the new module with your vehicle's systems.
Both manage body functions and key recognition. BCM is a general term used across many brands. FEM is BMW-specific and found in newer models (F-series and later). They serve similar functions but require different programming tools and procedures.
Pricing depends on the module type and vehicle. Basic BCM programming starts around $200. Complex European module coding (FEM, CAS, EZS) ranges from $300-$800.
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Mobile service across Dallas & DFW. Dealer-level tools. No guesswork.