ECU Cloning & Programming Service San Antonio

ECU / ECM / DME Cloning & Programming San Antonio

S.A. Locksmith & Security provides professional ECU cloning, ECM duplication, and DME programming for all vehicle makes and models in San Antonio, Texas. Whether your Engine Control Unit is damaged by water, heat, electrical surge, or internal failure, we clone all data — calibration maps, VIN encoding, immobilizer codes, learned fuel trims, and transmission adaptations — onto a replacement module. This eliminates costly dealer-only reprogramming and gets your vehicle running same-day.

What Is ECU / ECM / DME Cloning?

The Engine Control Unit (ECU), also called ECM (Engine Control Module) or DME (Digital Motor Electronics) on BMW vehicles, is the computer that manages your engine’s fuel injection, ignition timing, emissions controls, and idle speed. ECU cloning is the process of reading all data from your original unit’s EEPROM/flash memory and writing it to a replacement ECU so it functions identically — no dealer visit required.

Common reasons for ECU cloning:

Water or flood damage to the original ECU
Internal component failure (capacitors, transistors, processor)
Electrical surge or short circuit damage
Failed software update / bricked ECU recovery
Replacing a used ECU from a donor vehicle
Backup copy of ECU data for protection

ECU Brands & Systems Covered

Bosch ME7, ME9, MED9, MED17, MG1, MD1, EDC15, EDC16, EDC17 — BMW, Mercedes, VW/Audi, Porsche, GM, Ford, Volvo
Denso ECM / PCM — Toyota, Lexus, Mazda, Subaru, Suzuki, some Ford
Continental / Siemens VDO — Simos, SID, EMS — VW/Audi, Ford, BMW, PSA
Delphi / ACDelco E67, E78, E80, E87, E92 — GM, Chevrolet, Cadillac, Buick, GMC, Pontiac, Saturn
Hitachi ECM — Nissan, Infiniti, select Mazda, Subaru
Magneti Marelli IAW — FCA/Stellantis, Jeep, Dodge, Chrysler, RAM, Alfa Romeo
Mitsubishi Electric ECU — Mitsubishi, some Chrysler/Dodge
Keihin ECU — Honda, Acura

Vehicle Brands We Service

Domestic: Ford, Lincoln, Mercury, Chevrolet, GMC, Cadillac, Buick, Pontiac, Saturn, Oldsmobile, Hummer, Chrysler, Dodge, Jeep, RAM

Japanese: Toyota, Lexus, Honda, Acura, Nissan, Infiniti, Mazda, Subaru, Mitsubishi, Suzuki

European: BMW, Mercedes-Benz, Audi, Volkswagen, Porsche, Volvo, Land Rover, Jaguar, MINI, Fiat, Alfa Romeo

Korean: Hyundai, Kia, Genesis

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ECU / ECM / DME Cloning & Programming FAQ

How much does ECU cloning cost in San Antonio?

Standard ECU cloning ranges from $250-$600 depending on vehicle make and ECU type. Luxury vehicles (BMW DME, Mercedes ME, Porsche) may be $400-$900. Call (210) 348-3677 for your exact quote.

Can you clone an ECU if the original is completely dead?

In many cases, yes. Even if the ECU doesn’t power on, we can read data directly from the EEPROM or flash memory chip using bench tools (KTAG, AVDI). If memory is physically destroyed, we can program a new ECU from scratch with immobilizer recoding.

What is the difference between ECU, ECM, PCM, and DME?

These are different names for similar engine computers. ECU (Engine Control Unit) is the generic term. ECM (Engine Control Module) is used by most manufacturers. PCM (Powertrain Control Module) combines engine and transmission control (common in Ford/GM). DME (Digital Motor Electronics) is BMW’s term. We service all of them.

How long does ECU cloning take?

Most jobs are completed in 1-3 hours. If the ECU needs bench reading (removed from vehicle), it may take slightly longer. We offer same-day mobile service in San Antonio.

Will my check engine light come on after ECU cloning?

No. A properly cloned ECU retains all original data including learned adaptations. The engine should run identically to before the failure. We verify all systems before completing the job.

Request a Locksmith

S.A. Locksmith & Security is a full-service, 24/7 locksmith located in San Antonio serving the greater SA area. No project is too big or too small.

📞 (210) 348-3677

We Accept All Major Credit Cards

Note: Pricing and availability may vary. Smart key programming requires professional equipment. Some services may require vehicle VIN verification. All work is backed by our 90-day warranty on parts and labor and manufacturer warranty on hardware. S.A. Locksmith & Security — Licensed (LIC# B18010), Insured, BBB Accredited (A+ Rating). 11401 West Ave, San Antonio, TX 78213. All brand names, logos, and trademarks are the property of their respective owners. S.A. Locksmith & Security is an independent locksmith service provider and is not affiliated with any automobile manufacturer or dealership. 10% Military & Veteran Discount — show valid military ID at time of service.

Need ECU / ECM / DME Cloning & Programming in San Antonio?

Contact S.A. Locksmith & Security for professional ecu / ecm / dme cloning & programming. All vehicle brands supported. 24/7 emergency service available.