General description When dealing with car models such as Es, CAS, EZS, Ez5, and others that have chips and cannot start, the 10PC Car Key ECU Test Coil Checker is an essential diagnostic tool. It quickly determines whether the issue lies with the lock or the reading process, providing results in under 10 seconds. This intelligent device operates independently without the need for a computer, making it a valuable asset for car electronic maintenance personnel and locksmiths. Technical specifications Material: ABS Color: Photo Color Measurement allowed error: +/- 1-3 cm Installation Place the induction coil on the front of the ignition switch. Insert the key into the ignition switch and turn it on to activate the induction loop. Usage The induction loop converts electromagnetic communication between the key chip and the anti-theft computer into a flashing LED light, indicating the working status of the chip anti-theft system. If the induction light does not flash, it indicates a broken