Welcome to SIA Electronics
Expert ECU Repair: Fast Turnaround & Lifetime Warranty
Get a Quote: Call 1-800-737-0915
ECU Repair & Return: All Makes, All Models, Lifetime Warranty
Engine control computer repair troubles can be frustrating, and dealership replacement often isn’t affordable. That’s why customers turn to SIA Electronics, a specialist in ECM, PCM (Powertrain Control Module), and FICM (Fuel Injection Control Module) repair service trusted by vehicle owners and shops across the U.S. for over 30 years for affordable prices, fast turnaround, and lifetime warranties.
Repairing your original ECU costs a fraction of dealership replacement prices and preserves your vehicle’s original programming. Send in your unit to our ECM repair shop to have it diagnosed, repaired, and shipped back fast. Call SIA Electronics before sending parts for repair in order to receive the proper mailing instructions.
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What is ECU Repair?
Sometimes also called ECM (Engine Control Module) repair, it is the process of diagnosing and fixing the ECU, which is more cost-effective than replacement. A trained technician identifies the parts in need of ECM repair and replaces them with ones of higher quality.
SIA Electronics addresses over 12 failure issues per board, and our auto ECU repair service is provided at a flat cost, typically 60-80% lower than dealer replacement.
Whether you’re dealing with a failing engine control unit on a domestic car, a foreign import, commercial semi-truck, or heavy-duty vehicle, including Cummins ECM (Celect and Celect+), SIA Electronics repairs and returns your original unit, fully tested, plug-and-play, and backed by a lifetime warranty.
Differences between ECU, ECM, PCM, and FICM
Although these terms are often used interchangeably, an ECU can be any electronic control unit. An ECM, on the other hand, manages the engine, specifically. The PCM (Powertrain Control Module) controls both the engine and the transmission, and PCM repair addresses parts, code, and software. The FICM (Fuel Injection Control Module) regulates the fuel injection system in diesel engines. The technicians at SIA Electronics are trained in ECU refurbishment for virtually any type of failure.
How Our ECU Repair & Return Process Works
SIA Electronics offers a simple repair and return process:

Contact Us
Call (800) 737-0915 to receive proper shipping instructions for same-day service. If you submit a form, expect a reply within 2 hours or the next business day if the form is submitted after business hours.

Flat Estimate
Receive flat-rate pricing with no surprise costs.

Ship Your Unit
Send your ECU to SIA Electronics.

Fast Turnaround
Vehicle ECU repairs are processed as quickly as possible based on current demand. Your part ships back via UPS Ground, with return shipping included at no extra cost for customers in the contiguous 48 states.
Signs Your ECU May Be Failing
Watch out for these common symptoms to identify whether you might need ECU repair:
- The check engine light stays on with no other clear cause.
- The engine cranks, but won’t fire.
- The engine unexpectedly stalls, especially at idle or low speeds.
- Poor fuel economy.
- Transmission shifting problems, including erratic shifting.
- Failed emissions tests with no obvious sensor failures.
- Communication error codes (also called U-codes) are present.
Get Started
Don’t spend $1000 or more for a replacement module when expert ECU repair may be the smarter solution. Whether you need ECM, FICM, or PCM repair, SIA Electronics provides fast turnaround, transparent pricing, and a lifetime warranty on repairable units.
Call 800-737-0915 today or request a free quote.
