Light switch -BGM PRO- Vespa PK S EFL, PK XL, Vespa PX (1984-1998) - 9 wire (DC, models without battery, with horn rectifier, NO

The German Lusso models have no battery (except the Elestart models) and use alternating current at the frame.

For the control of the horn there is a separate rectifier (black box under the left side cover with green/black striped connection cables).
This converts the alternating current explicitly only for the horn into direct current and leads this to the horn switch. This is designed as a so-called normally open contact and closes the circuit when the horn button is pressed.

NOTE: Not usable with the cable harness of the Italian models without horn rectifier.

(US)