Test cable for Bosch Motronic M2.7 ECUs as fitted to the Ferrari 456GT and some Ferrari 348s and 355s. May work with other cars with the same ECU.

Plugs into the ECU (located under the A pillar in front of the door on the Ferrari 456GT, after removing the carpet on the side.

With ignition on, press the button at the end of the cable for approximately 3 seconds, and the dashboard Engine Management lights up in sequence giving a series of 4 rapid flashes.

A code sheet to decode the series of rapid flashes is included with purchase.

This replaces the genuine Ferrari part numbers 146916 & 145810 and in fact uses the 145810 part as the push button.