Welcome to SIA Electronics, we are the nation's premier remanufacturer & master distributor of superior quality remanufactured automotive electronic control units / engine control units / engine control modules / engine control computers (ECU's, ECM's, ECC's) & transmission control units (TCU's, TCM's, TCC's) for all domestic & import vehicle applications. Need your current ECU / ECM / ECC or TCU / TCM / TCC fixed or remanufactured? Take advantage of our industry-leading Remanufacture & Return (R&R) Services for all applications. Each of our remanufactured applications is an OEM unit & not an aftermarket replacement, providing you with premium products that look, feel & operate exactly like the original units they replace. Each ECU / ECM / ECC & TCU / TCM / TCC application undergoes our industry leading engineering & remanufacturing processes, which consist of cutting edge technology, sophisticated engineering & tooling, the selection of only the finest components, precision machining & finally our continuous laboratory testing & final inspection processes that set the industry standard for unparalleled quality. We then provide you with our incredible factory-direct pricing & fully stand behind our work with our exceptional Lifetime Service Guarantee... that is SIA Electronics.