13-14 CHEVY SONIC 1.8 ECU ECM PCM ENGINE COMPUTER 12663125 12643636 FREE PROGRAM Featured Products Some of those tests are

Some of those tests are listed below: All stepper motors that failed testing were replaced and then tested again with oem diagnostic tool capable of sweeping the needles as if in the vehicle

Lens shows noticeable scratches and haze as pictured

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13-14 CHEVY SONIC 1.8 ECU ECM PCM ENGINE COMPUTER 12663125 12643636 FREE PROGRAM Featured Products Some of those tests arePart Number 12663125 Service NO: 12643636 You must match all of this! ECU has security and requires programming before installation. We offer FREE VIN programming so the ECU arrives and your vehicle will start once a key relearn process is completed. We will send instructions on how to complete this. During chekcout, be sure to put your VIN in the "notes to seller" field, otherwise we'll message after the purchase for your VIN. A crankshaft and