I am in the process of "restoring" two Bosch horns from an old 544. Diagnosis is that I need to replace the Capacitors in the horns and here is my dilemma. Cannot locate a schematic for the Horm on the internet. According to the Volvo PV544 Parts Book, the Bosch PN is 0 320 123 012 (Horn is identified on the body as a HO5 A 7105 HO/FDG)

Capacitor is labeled as "HOKO 1Z.2Z 6...12VOLT"

Anybody got a clue? Or better yet an old Schematic for the Bosch Horn that identifies the "electronic specifics" of the capacitor? Would also help if someone could recommend a source for the part once identified.

Help?

Suppo176