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According to the research that i did on the forum a month or so back when i had EBCM issues, it may depend on the code as to what actually gets "repaired". I saw where sometimes the 1214 code only requires re-soldering of the relay contacts and NOT actually replacing the relay. However, some codes like 1232 or 1233 would require the replacement of some transistors. These units apear to have several parts that are prone to fail at any given time. If a unit goes bad and only one part is repaired to make it operational again, then it could still fail another day when one of the other "weak" parts go bad. I don't know if any of the repair vendors go through a unit and completly replace all of the weak components and make the repaired unit better than any other unit. My guess would be that only the faulty component would be repaired to get the unit operational again. But even so, a repaired unit can be purchased for about half of what a new one costs so you can gamble that it will not fail again and put the savings toward other things. Plus, there is no guarantee that a "new" unit will not fail just like your original one. Unless there was a design change or something, a new unit will still have the same weak components as all of the original ones that are in our cars now. What i decided to do was purchase a repaired unit (from Marc at VetteNuts) to get my car back operational and then send my old unit off for repair. Then i will keep the repaired unit for a backup incase i have some issues again. That is still cheaper than buying a new one. So far, the one from VetteNuts is working well and i have not had any issues with it (thanks Marc).
According to the research that i did on the forum a month or so back when i had EBCM issues, it may depend on the code as to what actually gets "repaired". I saw where sometimes the 1214 code only requires re-soldering of the relay contacts and NOT actually replacing the relay. However, some codes like 1232 or 1233 would require the replacement of some transistors. These units apear to have several parts that are prone to fail at any given time. If a unit goes bad and only one part is repaired to make it operational again, then it could still fail another day when one of the other "weak" parts go bad. I don't know if any of the repair vendors go through a unit and completly replace all of the weak components and make the repaired unit better than any other unit. My guess would be that only the faulty component would be repaired to get the unit operational again. But even so, a repaired unit can be purchased for about half of what a new one costs so you can gamble that it will not fail again and put the savings toward other things. Plus, there is no guarantee that a "new" unit will not fail just like your original one. Unless there was a design change or something, a new unit will still have the same weak components as all of the original ones that are in our cars now. What i decided to do was purchase a repaired unit (from Marc at VetteNuts) to get my car back operational and then send my old unit off for repair. Then i will keep the repaired unit for a backup incase i have some issues again. That is still cheaper than buying a new one. So far, the one from VetteNuts is working well and i have not had any issues with it (thanks Marc).