Signal switch diagram

Hi, would anyone be able to tell me which posts are what on a signal switch, or direction indicator, part number 67115725. There are 8 terminals and each one is marked, and they are as follows. a, b, c, 1, 2, 3, 30, h. But I don't know which one is power in, or anything. And is there a flasher/ clicker in the switch itself or do I need an external one? Any help would be greatly appreciated. Oh and I checked continuity through it and I get nothing in the centre position, on the left position I get continuity through 1 and 2 and a and c. on the right position I get continuity through a and b and 1 and 3. Thanks

Hi, sent you an email with a photo attatchment of a 5748 circuit diagram, did not know how to add a photo here. Hope this helps you.

Hi , I'm wondering if one of you could help me as I'm in the same situation. I'm in need of the switch diagram. Thanks.

Hi, sent you an email,