[T2] rear brake light question

[Kevin S. Clarke]

Hmm, someone somewhere else said it sounded like a grounding issue.  I'm
beginning to wonder whether I'm misunderstanding what happens at the
connection of the right bulb.  It has two prongs that connect to two
positive wires (incoming and outgoing) and to the two contact points on the
bulb.  I was thinking the circuit would be the same if both positives were
connected to one prong as it would be if they were connected to separate
prongs, connected to each other through the bulb (that the bulb is just a
conduit)... but perhaps this isn't correct?  There isn't a ground from that
connection (it's made elsewhere in the circuit).  Hmm, just trying to think
through it (and possibly correct my bad assumptions).

Kevin


On Sun, Oct 6, 2013 at 4:38 PM, Kevin S. Clarke <ksclarke at gmail.com> wrote:

> My left rear brake light stopped working.  I confirmed it wasn't the bulb
> and then started tracking down the wires and grounds.  I learned the
> positive wire that goes to the left light comes from the right rear light.
>  That right rear light has two contact points (as does the left).  One
> contact point on the right is connected to the incoming positive wire and
> the other side has the positive wire that runs from the right light to the
> left light.
>
> When I put both those wires (incoming positive and outgoing positive) on
> one side (contact point) both lights work (right and left), but when I have
> the outgoing (to the left) on the second contact point and the incoming (to
> the right) on the first contact point only the right light works.  It seems
> like this means it's not getting enough current to make it through the
> bulb(?)  The bulb is new.  Is my understanding correct (I'm a newbie) and,
> if it is, where should I be looking next?
>
> Thanks,
> Kevin
>