Join Date: Aug 2009
Location: Silver Spring, Maryland, USA
Make: BSA Royal Star
Bad Ignition Switch
Relay # 3 always has "load" voltage (even with the ignition OFF).
If the relay # 3 was stuck in the closed position (or if the load and trigger pins were shorted together), there would be voltage on the black trigger wire.
If the Relay # 3 (black trigger wire) has voltage, it will go to the # 12 head relay 5-amp fuse, then from there to the starter/reverse switch (brown/red wire, connector then a brown/white wire), then to the dimmer switch (blue/white wire). The dimmer switch will activate the head light relays # 4 and # 8 depending on the setting.
No diode involved..........!
QUOTE=redwing52;4766201]Alright, I was with Dave, then I wasn't, now I am just confused. I tried to find a path for the power to flow from the #3 to the dimmer power and it seems the diode should block the path. I'm not doubting there is a path but with all the spaghetti I can't find it. Now I have a headache and quit. Help me please.[/QUOTE]