Front indicators sometimes stay on all the time.

Chris_D

Lifer
Mostly Holland. Sometimes UK.
So this was occurring infrequently and since last week it's been happening a lot more but both front indicators will come on and stay on completely randomly. Not blinking but staying on like sidelights on US cars.
I suspect it might have something to do with the cheap Chinese LED bulbs I have installed for the sidelights. They're multi SMD totem-style as in the pic.

I had the light housings off recently to do a refurb and maybe this has degraded the LED's somehow.

I'll swap in some normal halogen T10's and see if that cures the issue in the meantime....
Anyone else experienced this phenomenon?

IMG_20201017_161728.jpg
 
ph001 said:
Are you using oem bulbs for the indicators themselves?
Tbh, I haven’t checked. They’re whatever that came with the car originally when I bought it. But assuming they’re oem.
 
Pretty sure when the car detects an issue with the side lights it activates the indicators permanently as a safety feature. I had a side light blow on me a few years ago and this happen; went away after I replaced the bulb.
 
parabolica said:
Pretty sure when the car detects an issue with the side lights it activates the indicators permanently as a safety feature. I had a side light blow on me a few years ago and this happen; went away after I replaced the bulb.
Good to know.
:thumbsup:
enuff_zed said:
Or you keep looking away, then looking back at exactly the right time. :D
Arf. :oops:
 
HU51A_FU said:
I have LED SMD, LED halos and indicators as my DRLs LOL US spec :P :evil:
And the award for the best use of abbreviations goes to.............................. :rofl:
 
Like to suggest & ask hasanyone been using a Carly on it?

On changing some rear brake light settings on a friends car, we somehow managed to get an undocumented feature where the front indicators glowed under braking within one of the settings
 
!00% the LED Bulbs you have recently installed ........and as Parabolica says .......Change them and Voila .... :D
 
I would agree its the led's causing that, the system sees such a low power at the led's it thinks the bulb has blown so illuminates the indicator bulb(s) as a safety feature. Replace with stock bulbs or canbus compliant led's and that should satisfy the system.
 
Did you figure this out? Isn't there a way of coding out voltage check (car obviously can't deal with led tech) :wink: lol :lol:
 
kis said:
Did you figure this out? Isn't there a way of coding out voltage check (car obviously can't deal with led tech) :wink: lol :lol:

Haven't had a chance since posting yet. Have some old T10 Halogens to re-fit to make sure it's not a different issue. Then if that's confirmed it was dodgy LED's I'll try some different new T10 canbus LED's and hope for the best.

Will have a butchers at the lights at the weekend maybe...
 
Chris_D said:
kis said:
Did you figure this out? Isn't there a way of coding out voltage check (car obviously can't deal with led tech) :wink: lol :lol:

Haven't had a chance since posting yet. Have some old T10 Halogens to re-fit to make sure it's not a different issue. Then if that's confirmed it was dodgy LED's I'll try some different new T10 canbus LED's and hope for the best.

Will have a butchers at the lights at the weekend maybe...

Your best bet is to get.a set of decent W5W LEDs from Philips or Osram and code out the checks. CANBUS LEDs tend to be crap for the simple reason there is nothing clever about them, they simply put a load resistor in the package. In such a small space there is nothing really to dissipate the heat and they fail.

Test with regular filament bulbs to make sure the connectors and wiring are sound first.
 
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