CB450SC Brake Light Stuck On - Page 2
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Thread: CB450SC Brake Light Stuck On

  1. #11
    Super Moderator longdistancerider's Avatar
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    Under the seat you'll find a wiring harness, follow that to the taillight area where there are bullet connectors used. Look at the wires and be sure that the color codes on both sides of each connector are the same. IE; Green to Green, Brown to Brown.
    BTW, Green is ground on these.
    Key on you should have power to the Brown, nothing else.
    Brake applied you should have power to the Green w/Yellow
    Right turn signal on pulse power on the Lt. Blue
    Left turn signal on pulse power on the Orange.
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
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  2. #12
    Junior Member Charlie Marlow's Avatar
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    Got a chance to look at it a bit better today, and found the problem. It appears a rodent built a nest in the empty space in the tail behind the taillight and spent some time chewing on the wires. I pulled the tail light cover and the reflective piece in there, and, when I pulled the sockets out, I saw stuff packed behind the socket and the wires on the right-hand socket were chewed up.

    At this point, it looks like I have to pull some more stuff off to get access in there, but at least I know what the problem is, or, more specifically, where it is. I'm sure there's just stuff touching in there that shouldn't be.

    Thanks, again, for the help. I was scratching my head as electrical stuff is not one of my strengths and I appreciate the advice I got.
    longdistancerider likes this.

  3. #13
    Junior Member Charlie Marlow's Avatar
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    Okay, this will probably be my last update on this thread, but it's definitely the mouse. I pulled the little compartment that's under the seat out, popped the tail light housing off, and found where several wires were touching. I spread them apart, turned the key on, and verified that the left socket is working correctly now. However, the wiring is chewed right at the other socket, so I'm not sure if I'm going to be able to fix it. Does anyone know the part number on the bulb sockets or where I can get similar ones?

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  5. #14
    Member mikemo's Avatar
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    It doesn't look like any of those taillight parts are available from Honda anymore.

    https://www.partzilla.com/catalog/ho...-450/taillight

    If you can't get the wires reconnected to the socket, I would think that you could find a generic bulb holder and make it work. It might take some tinkering but at least the bulb sockets are common.
    Good luck
    Mike M.
    1982 CB450SC Nighthawk
    2 x 1988 Toyota MR2 Supercharged (one finished, one under reconstruction)
    2018 Honda Civic SI

  6. #15
    Super Moderator longdistancerider's Avatar
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    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

  7. #16
    Junior Member Charlie Marlow's Avatar
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    Cool - there was just enough wire left that I was able to get it working, but, knowing my wiring skills, I'll keep that handy.

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