No PCB in this package! LED works for 12V. After you connect with the probe, disconnect 12V battery for LED,it will works.The probe pin is adjustable.
ECU Open Tool For Kess Ktag Fgtech chip tuning tool. Kess Ktag Fgtech ECU Cover Extractor Car Computer Removal Tool designed to remove/ install car ECU computer cover easily. Kess Ktag Fgtech ECU Opening Tool works perfect with ECU Chip tuning tools.