Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


All indicators flashing (But they're not LEDS!)

Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

boredatwork
Nova Slayer



Joined: 02 Jan 2008
Karma :

PostPosted: 21:27 - 19 Jul 2022    Post subject: All indicators flashing (But they're not LEDS!) Reply with quote

tldr: if i indicate left, invariably the right one starts flashing and vice versa. they aren't LEDs, they're incandescent bulbs.

hi
gsxr 750k4 due for its MOT and of course this weekend it starts doing this. when i indicate left, after a second or two the right lights flash in sympathy - eg left on, when the left goes of the right blinks a little weaker, then when it goes back to the left. If I take a bulb out, the "wrong side" still flashes. New relay hasnt fixed it. Ive checked the loom visually nothing obvious. Sprayed and cleaned all the various terminating blocks even tho no obvious corrosion. Even happens when I've disconnected the big connector to the front and the dashboard so i dont think its the diode/single indicator bulb issue.

I'm stuck any ideas gratefully received!
____________________
DAS/Test: Passed March 08!
Bike: CG 125 and 600 Bandit
 Back to top
View user's profile Send private message You must be logged in to rate posts

Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
Karma :

PostPosted: 08:17 - 20 Jul 2022    Post subject: Reply with quote

Bad earth causing the power to find an alternate route to get to earth, via the bulb rather than the earth.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050
 Back to top
View user's profile Send private message You must be logged in to rate posts

sickpup
Old Timer



Joined: 21 Apr 2004
Karma :

PostPosted: 09:14 - 20 Jul 2022    Post subject: Reply with quote

The indicators will share a common earth which is corroded somewhere in the loom.
As a quick dirty fix you could add additional earths to the indicators.
 Back to top
View user's profile Send private message You must be logged in to rate posts

boredatwork
Nova Slayer



Joined: 02 Jan 2008
Karma :

PostPosted: 18:12 - 20 Jul 2022    Post subject: Reply with quote

Nobby the Bastard wrote:
Bad earth causing the power to find an alternate route to get to earth, via the bulb rather than the earth.


thank you both (i cant multi quote) - going out after dinner to have a look at the continuity again, but i think the 'new' earth will get me thru the MOT i'll report back

thanks
____________________
DAS/Test: Passed March 08!
Bike: CG 125 and 600 Bandit
 Back to top
View user's profile Send private message You must be logged in to rate posts

boredatwork
Nova Slayer



Joined: 02 Jan 2008
Karma :

PostPosted: 13:45 - 22 Jul 2022    Post subject: Reply with quote

so just as an update- new earths didnt work.

but i've new information - if i disconnect the live from one of the bulbs, and select the other side to flash...both sides flash.clearly something is mega shorting so pulling it all apart to look at the wiring.

sigh.
____________________
DAS/Test: Passed March 08!
Bike: CG 125 and 600 Bandit
 Back to top
View user's profile Send private message You must be logged in to rate posts

Easy-X
Super Spammer



Joined: 08 Mar 2019
Karma :

PostPosted: 18:10 - 22 Jul 2022    Post subject: Reply with quote

I don't think there's anything particularly clever going on with the wiring (with regards to the original design) so for both sides to flash it'd have to either be:

1) a faulty indicator switch
2) the left and right wires corroded together somewhere (Black, Light Green)
3) diode array busted in the display, but you've already tested that by disconnecting

If you disconnect the switch cluster the relay wire is light blue (if I'm reading the right diagram.) Jab a wire between light blue and light green, light blue and black to simulate the indicator switch.

For corroded together wires you'd need to break out a multimeter.
____________________
Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter
 Back to top
View user's profile Send private message You must be logged in to rate posts

forarainydave
L Plate Warrior



Joined: 15 Aug 2022
Karma :

PostPosted: 12:38 - 15 Aug 2022    Post subject: Reply with quote

Sounds like the switch needs investigating. Just check the continuity on the opposite side from the switch (i.e. check the right side wire from the switch when you select left), there should obviously be none. I think a bit of conducting crud may have built up and is shorting, especially if it's a bit of a weaker signal on the opposite side than the one selected.
 Back to top
View user's profile Send private message You must be logged in to rate posts

JBM
Derestricted Danger



Joined: 02 Feb 2022
Karma :

PostPosted: 14:37 - 26 Sep 2022    Post subject: Reply with quote

I’m guessing you’ve got to the bottom of the issue by now, but if not, does your bike have an alarm?
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts
Old Thread Alert!

The last post was made 1 year, 184 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT + 1 Hour
Page 1 of 1

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 

Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.06 Sec - Server Load: 0.21 - MySQL Queries: 17 - Page Size: 57.98 Kb