Quote:
Originally Posted by arthury
Step#2: I am assuming input power is the wired connector that plugs into the switch?
I just tested that and it’s around 12.4V and it drops to 3.5V when I depress rear brake.
Step #3: Not sure where is the output of the switch?
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#3. you can back-probe harness-connector to touch terminal of blue/red wire. I believe that bundle of wires near radiator cap (green connector)?
#2. yes red/blue input-wire to switch gets power from#4 tail-light fuse. So this test seems to indicate you have power going into brake-lever switch. Also seems to show something's working due to voltage-drop. If bulb doesn't light, voltage-drop is due to short somewhere between switch and brake-light bulb.
Do test#4 with manually connecting input & output of brake-lever switch at harness-connector. Does voltage drop there also? Does bulb light?