Re: left turn signal doesn't work

Posted by shinyribs on May 22, 2012; 3:11am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/left-turn-signal-doesn-t-work-tp4004068p4005920.html

The wires in the switch are all hot wires,or have voltage present. There are no grounds in your switch housing. The housing of the turn signal itself will be your ground. I might have been unclear about that. Sorry! When you grounded the wires in the switch and it made the flasher start clicking,what probably happened is it completed the circuit for that side and allowed the flasher to work/click.

Were you able to tell if the signal housings were clean and making good contact? A good test would be to run a jumper wire from your negative battery terminal to the signal housing and see if that works. You could try whatever fastener the signal is mounted with first or touch it to the housing itself as long as it is some sort of conductive material,of course. I know some of the signals are chrome plated plastic.

I just had an even better idea. Remove the lens and attach your negative jumper wire directly to the bulb holder itself. Or maybe even to the brass base of the bulb. That way you know for a fact the bulb is grounded. Sometimes the bulb holder itself will corrode and cause you to lose ground. That would be a better test for a ground issue. If you do that and the bulb lights up you know for sure it is a ground issue.