LAUNCH X431 BST360 Bluetooth Battery Tester Clip For X431 V PRO PRO3S+ PAD V. (PMI) Programmable Module Installation : LAUNCH X431 PRO3S+ SMARTLINK HD 2.0 Support PMI function, Compatible with Ford /Lincoin/ Mazda etc.This function is used when you need to replace a module (replace ECU) or initialize a module.No need using the J2534 or buying a subscription.