left signal turn

Dear All,

both front and back right signal turn are off. They doesn't works anymore on my Honda silverwing 2003 ABS. When I switch it on, there is a quick light up that turn off very quickly on the dashboard. Both of them (front and back right signal) stay off even if I keep the turn signal control pad on hold.


the back and front left signal works perfectly.


do you have any idea on how I can resolve this issue ?

thanks a lot.
Best regards,

Hello Sam. Your English is much better than my French. So no worries. Welcome to the forum.

Remove the two screws from the handlebar switch assembly. Gently separate the two sections of the switch. It will be stiff and a bit awkward because of the tight location and the wire harness. It may help if the handlebar cover is removed. The turn signal switch is in the top half of the assembly. Cautiously twist and manipulate the top half to expose as much of the switch as you can. Drape a protective cloth over the area then spray the the switch contacts and mechanism with electrical contact cleaner or WD-40 and work the turn signal lever back & forth. Frequently the grease in that switch assembly becomes hardened and will cause contact problems. 

If that doesn’t help, as a test, you could try to trim back the covering on the wire harness for the turn signal switch. Locate the Light Blue/White (Lb/W), Orange/White (O/W), and Blue/Black (Bu/Bl) wires. Use a sewing needle or straight pin and pierce the Lb/W and O/W wires to establish an electrical connection between the two. The Lb/W is the battery + wire. So with the key ON the left turn signal should work —and confirm that the wiring from that point to the turn signal is ok.

Be careful to reassemble the switch halves. Insure that they mate properly before installing the screws. And be sure that the brake/start switch wire haven’t become disconnected while you’ve manipulated the handlebar switch assembly.  

Try that and let us know how you get on with this.

Tim

All of above. Dirty contacts in switch. Left side works so it's not the turn signal relay. OR it could just be a couple of burnt bulbs.

Hello Tim & Mech,
I will start investigating next week and Will let you know. Thanks for the help

Hello,
WD40 has done a great job.

here is a quick video of the results. As you can see at 10 sec, the signal works but it takes few seconds to starts after it is switched on.

youtu.be/A82NwGcXm8M

***may be it's not related, but this morning when I tried to start the machine, I had no battery power.
is it link to the relay that was clicking rapidely ? ( see video above at 10 sec)


maybe I have to post a new topic.

Regards

Hi LECHETTAN and welcome. I'd say that the signals are working fine. There is sometimes a short delay in the signal lighting up on mine too but no clicking noise, I reckon it depends on where the relay contacts are sitting at the time of hitting the switch. I noticed that the rapid clicking occurred after you had switched over from the left signal, after that it seemed fine. The relay could be getting a bit sticky and installing a new relay could be the answer.

As for the loss of battery power, maybe the relay is shorting out if the contacts are indeed a bit sticky.