ECU Maverick

Mail-in ECU, ECM, TCM, BCM & ABS specialists · Fort Myers, FL · all 50 states

Your module, rebuilt and back on the road.

Searching for ECU repair? ECU Maverick rebuilds, programs and clones engine, transmission, body and ABS control modules for shops and vehicle owners nationwide. Tell us what the vehicle is doing, and a technician comes back with a clear plan and a firm price — before you ship a thing.

Start a request — about 5 minutes See how it works

Fully online. Start from your phone, follow every step on your request, and get your module back at your door.

Questions people ask us

How does mail-in module rebuilding work?
Three steps. You open a request in MavConnect and tell us the vehicle, the module and the symptoms. A technician reviews it and sends you a Technical Review — what we recommend, what it costs, and how to ship. You accept, send the module in, and we rebuild it (or program a remanufactured replacement) and ship it back ready to install. Most customers finish the request from their phone in about five minutes.
How much does it cost, and when do I find out?
You'll know the exact price before you ship anything. Opening a request costs $195 — that's the Technical Review, where a technician looks at your vehicle, module and symptoms and writes up your options and a firm price. When you go ahead with the service we recommend, that $195 comes straight off your price, so the review ends up costing you nothing. Return shipping is added at the end.
What is the $195 Technical Review Fee, exactly?
It's a technician's time, spent on your request specifically — not a form that goes into a queue. You get a written recommendation you can act on: rebuild, replace, or in some cases "don't send it, here's why." Go ahead with the recommended service and ship on time, and the $195 comes off your price. If you decide not to proceed, the $195 covers the review you received and nothing else is ever charged. One fee per request, never twice.
I'm not sure the module is the problem. Can you help me figure that out?
Yes — that's what Guided Troubleshooting is for. For $399 you get seven business days with a technician in your corner, in writing on your request, working through what the vehicle is doing so you can confirm whether the fault is in the module or somewhere else before anything comes off the car. If it is the module, you open a request for the service you need and we take it from there.
Can you program a replacement if mine can't be rebuilt?
Absolutely. Some modules are too far gone — water damage is the classic case, because corrosion keeps spreading under the components long after the module dries out. For those we program an OEM remanufactured module matched to your vehicle, and it's often faster and cheaper than a rebuild, because it skips the bench hours needed to trace exactly what failed. You still send us the original so we can transfer your vehicle's data, and you get back a programmed, plug-and-play replacement.
Which modules and vehicles do you work on?
Engine modules (ECM, ECU, PCM, BMW DME), transmission modules and mechatronics (TCM, ZF 6HP and 8HP, Mercedes 9G), body and footwell modules (BCM, FRM3), ABS modules, airbag (SRS) modules and electronic steering locks (ELV/EZS) — across BMW, MINI, Mercedes-Benz, Audi, Volkswagen, Porsche and many other makes. If you don't see yours, open a request anyway: a technician will tell you honestly what's possible.
Do I have to remove the module myself?
Yes — you or your shop pull the module and ship it to us; we're mail-in only. Your accepted Technical Review includes the ship-to details and simple packing guidance so the module travels safely. Any carrier works.
Is there a warranty?
Rebuilds and programmed replacements are covered for six months against defects in parts and workmanship when installed by a licensed shop. The full terms sit on your request, so you always know exactly what's covered.
Can I see where my request is?
Any time. MavConnect shows every step — Technical Review, acceptance, module received, on the bench, work complete, payment, shipped back with tracking — and emails you whenever something needs your attention. Shops can add their RO number so everything lines up with their own ticket.
Why is everything handled in writing?
Because it gets you a better answer. Your technician has your whole file in front of them — vehicle, codes, photos, history — and replies on your request, where you can read it twice, share it with your shop, and come back to it a year later. Nothing gets lost in a voicemail or a forwarded thread, and you always have a complete record of the work.

From the bench: BMW N55 DME, crank-no-start

The BMW N55 DME is notorious for Valvetronic actuator shorts that fry the internal driver circuits — limp mode, misfires, BSD communication faults, crank-no-start. Many shops give up and quote an expensive dealer replacement. This Bosch MEVD17.x board arrived dead. We rebuilt the driver stage, restored the damaged traces, and programmed it for plug-and-play installation. Back on the road at a fraction of dealer cost — and if your N55 is doing the same thing, that's exactly what a request is for.

How it works

Three steps, and the module comes back to your door.

Rebuild or replacement, shop or private owner — it's the same simple path, and you can do the first step from your phone.

  1. 1

    Tell us what's going on

    Open a request in MavConnect: vehicle, module part number, symptoms, any codes or photos you have. The more you give us, the sharper the answer. That's the $195 Technical Review — and it comes off your price when you go ahead.

  2. 2

    Get your plan and your price

    A technician reads your request personally and sends your Technical Review: what we recommend, the exact price, and where to ship. Read it, ask questions on your request, accept when you're ready. Nothing ships until you say so.

  3. 3

    Ship it, and we take it from there

    Send the module in. We rebuild it — or program our OEM remanufactured module with your vehicle's data — and ship it back ready to install, with tracking on your request.

Can't be rebuilt?

We program our OEM remanufactured module instead.

Some modules are too far gone — water damage, cracked boards, locked software. For those, the fastest way back on the road is our OEM remanufactured module, programmed to your vehicle with the data from your original. Often quicker than a rebuild, and usually cheaper, because it skips the bench hours it takes to trace exactly what failed.

Not sure which one you need?

You don't have to decide. Open the request, describe the problem, and the Technical Review tells you whether a rebuild or a programmed replacement is the right call — with the price for each.

Start a request →

About five minutes. Your Technical Review follows in writing.

✓ Built for shops too

Put your RO number on the request and every message, photo and invoice lines up with your own ticket — a written record you can hand to your customer.

✓ Programmed to your VIN

Replacements are matched to your module's part number and software level and programmed with your vehicle's data — plug in and go.

✓ 2-day return shipping available

Ask for expedited return shipping on your request and the vehicle spends less time on the lift.

  • Refurbished Maserati Ferrari Granturismo GranCabrio Granturismo M145 NBC BCM OBD Body Control Module 341895

    Body Control Module (BCM) Repair & Programming

    ECU Maverick repairs and programs body control modules (BCM) for a wide range of makes and models. BCM failure symptoms include power windows, locks, or wipers not responding, interior or exterior lights malfunctioning, battery drain, and intermittent electrical gremlins that come and go. We diagnose at the board level, repair the fault, and program the module for plug-and-play installation.

  • AUDI Q7 OEM ECU ECM PCM ENGINE COMPUTER MODULE 03H906032EK 03H-906-032-EK 03H997032DX 03H-997-032-DX; 3H997032DX

    Engine Control Module (ECM/ECU) Repair & Programming

    ECU Maverick repairs and programs OEM engine control modules (ECM/ECU) from Bosch, Continental, Denso, Kefico, Delphi, and Siemens. Common ECM failure symptoms include check engine light, no-start or crank-no-start, misfires, limp mode, and loss of communication with the diagnostic port. We bench-test every unit, repair failed circuits at the component level, and program the module to your VIN for plug-and-play installation — no dealer visit, no additional coding. Every ECM repair is backed by our 6-month warranty.

  • 2004-2010 BMW 5 Series E60 E61 EGS CONDUCTOR PLATE MECHATRONICS TCM OEM ZF GA6HP19Z GA6HP26Z GA6HP28Z

    Transmission Control Module (TCM) Repair & Programming

    ECU Maverick provides specialized repair and programming for OEM transmission control modules (TCM/TCU), including ZF 6HP (Bosch and Continental) and ZF 8HP (Bosch) mechatronic units. If you're experiencing hard shifting, gear slipping, delayed engagement, limp mode, or a transmission stuck in neutral, the TCM is a common cause — and repairing it costs a fraction of a new transmission. Modules are programmed to your vehicle for true plug-and-play installation, with a 6-month warranty on every repair.

  • Volvo ABS Anti Lock Brake Module Repair Service S60 S80 V60 XC60 31329138 31274508

    ABS Control Module Repair & Coding

    ECU Maverick tests, repairs, and codes OEM ABS (anti-lock brake) control modules from ATE and Bosch. Typical ABS module failure symptoms include the ABS or traction control light staying on, a dead speedometer, and ABS fault codes that return after clearing. We restore the module to factory specifications and code it for your vehicle, so braking, traction control, and stability systems work exactly as they did from the factory.

  • ZF 6HP & 8HP TCM Repair & Programming — Bosch and Continental

    ECU Maverick repairs and programs Bosch and Continental TCMs for ZF 6HP and 8HP transmissions, with fast turnaround and true plug-and-play installation. Hard shifting, slipping gears, stuck in neutral, or limp mode? Bought a used TCM that won't program to your vehicle? We repair your original unit or program a replacement to your VIN — no additional coding needed after installation. We service all makes and models running ZF 6HP/8HP gearboxes, and every repair includes our warranty. Ship your TCM today and skip the dealer replacement bill.

    Get Your 6HP Bosch TCM Repaired - Click Here to Learn More

  • BMW MINI FOOTWELL MODULE PROFESSIONAL REPAIR SERVICE FRM3 FRM3R

    BMW & MINI FRM3 Footwell Module Repair — Same-Day Service

    ECU Maverick repairs BMW and MINI FRM3 footwell modules, typically the same day we receive them. Classic FRM3 failure symptoms: headlights stuck on or off, turn signals not working, power windows dead, and interior lights that won't respond — usually after a battery change or jump start. Our repair fully restores your original module with no coding required: plug it back in and everything works. We also stock programmed plug-and-play FRM3 replacement modules for all BMW and MINI models. Warranty included on every repair and replacement.

    Fix Your FRM3 Module Issues - Click Here for Fast Service

  • Mercedes-Benz M272 V6 & M273 V8 ECU — Programmed Plug-and-Play ECM

    ECU Maverick supplies pre-programmed plug-and-play ECUs for Mercedes-Benz M272 V6 and M273 V8 engines — covering the C300, E350, E550, SL550, ML350, ML550, GL450, CLS550, and every other model running these engines. Each ECM is programmed to your VIN before it ships, so there's no extra coding, no dealer visit, and no SCN coding fees. Install it and drive. Fast turnaround, expert support, and warranty included.

  • Mercedes-Benz Steering Lock (ESL/ELV) & EIS/EZS Ignition Repair

    ECU Maverick repairs and programs Mercedes-Benz electronic steering locks (ESL/ELV) and EIS/EZS ignition switch modules. If your key won't turn, the dash shows a red steering wheel warning, or the steering column won't unlock, the steering lock module is the usual culprit. We offer both repair and programmed emulator solutions — plug-and-play, no coding needed. Ship your unit today for a fast fix.

  • BMW F30 F31 F34 F35 Instrument Cluster Kombi Speedometer Repair Service Crashed During Programming

    BMW F30 F31 F34 F35 15KLWUP Short Circuit Repair — DTC 804086

    ECU Maverick repairs the 15KLWUP "short circuit to positive" fault on BMW F30, F31, F34, and F35 (3 Series and GT) modules. Symptoms: battery drains overnight, the instrument cluster won't sleep, and fault code 804086 stored. Our component-level repair fixes the short circuit permanently — plug-and-play, no coding required after installation.

    FIx your BMW F30 15KLWUP

  • Mercedes-Benz 9G-tronic 9 speed automatic transmission control module 725.0 VGS-NAG3 A7252709011 A0009015000

    Mercedes-Benz 9G-Tronic TCM 725.0 VGS NAG3 Repair

    ECU Maverick repairs and reprograms the Mercedes-Benz 725.0 VGS NAG3 transmission control module used in 9G-Tronic transmissions. Common symptoms: rough or harsh shifting, failure to engage gears, limp mode, and fault codes P073E00 and P07B700. We restore the TCM to full function and program it for your vehicle — far cheaper than a dealer mechatronic replacement, with warranty included.

    Mercedes-Benz 9G TCM Repair

  • 5WK750010AA 5WK75010AA

    BMW 7 Series (F01/F02) Mechatronic TCM Repair — 740i, 750i, 750Li (2009–2012)

    Rough shifting, delayed gear engagement, or fault codes like "Turbine Speed Sensor," 5088 (L1–L4), P07BF, 7E9, P0700, or 400626? ECU Maverick repairs and reprograms the Continental 6HP mechatronic TCM/TCU in 2009–2012 BMW 7 Series models — 740i, 750i, and 750Li — including part numbers 5WK750010AA, 1D3901, and 5WK75000AA. The most common failure is the internal turbine speed sensor, which we replace at the component level, restoring factory shift quality without replacing the transmission.

    2009-2012 BMW 7 Series TCM Repair

  • ABS Module Repair — Fix Your ABS Light & Speedometer

    ABS light on? Speedometer dead? Traction control disabled? ECU Maverick repairs ABS control modules for a wide range of makes and models, restoring anti-lock braking, stability control, and speed signal functions to factory specification. Submit a work order with your vehicle and part number, and we'll reply with upfront pricing before you ship.

  • Airbag Control Module (SRS) Repair & Programming

    Airbag light on? ECU Maverick repairs and reprograms airbag (SRS) control modules for a wide range of vehicles, restoring the supplemental restraint system to full functionality. Every repair and programming service includes our warranty. Submit a work order with your vehicle details and we'll email your options and exact pricing.