They will have to redo the wiring back to factory specifications to turn it off. You can't reset the ECU without a scan tool.I removed the buckle slider and it silenced the seatbelt chime as advertised. The only problem now is that the car knows it has been tampered with. Putting the slider back in doesn't pacify the SRI indicator on the dash. I'm assuming that I have to take it to a dealer now to have the SRS system reset. Or is there some way I can reset it? Can they tell the slider is missing (other than the absence of the chime) or do they just do a reset on the computer module?