Abrites Field Detectors
Abrites field detectors are designed to help you estimate whether the electronic ignition switch of the vehicle is functioning properly. The ZN047 and ZN048 are very useful before starting to work on a vehicle, especially when it comes to programming keys and transponders, as well as identifying problems with ignition. Use ZN047 for 125 KHz frequency vehicles (e.g. Renault), and ZN048 for 125 KHz and 20 KHz (Mecedes, Audi, Toyota, etc.). If the switch works, the green LED light flashes - it’s that simple.
Using an Abrites Field Detector to identify problems with IGN coil on E90