Led switchback

[Rudy913]

Led switch back light for blinkers staying constant amber . I posted this before but never found a fix,
I change the flasher to a led flash
But still not working . Do anybody know a fix for this ?

 

[TexasCutlass]

Not 100% sure but I wanna say you're supposed to add a resistor inline with each bulb. Someone explained it to me a long time ago but I already forgot.

 

[64nailhead]

If I understand correctly, you have a light stays lit all the time if you use an LED, but does not with a normal monofilament bulb. If this is the case, then you have a shirt to power somewhere. Excellent chance it’s in the socket. The reason the normal bulb doesn’t stay Illuminated is because it requires 8-10 times the amperage to light, whereas an LED requires virtually no amperage to light.

Check the socket with a multimeter. It should identify the problem, then you to determine what’s causing it.

 

[fleming442]

Well, it seems vague as to what exactly is staying on. Like 64nailhead said, if the exterior light itself is on, there's a short. If you mean the indicator on the dash comes on solid with the parking lights, you have a blown bulb (traditionally). The indicator comes on because, with the parking lights off, it pulls ground through the parking light circuit. When you turn the lights on, that ground goes away and it finds ground through the indicator. Now that you're throwing an LED in the mix, things get complicated because they only work one way and can't backfeed ground. It will require extensive testing beyond throwing parts at it. Get the meter out and go to town.

Why do you want white parking lights in front, anyway? It's 2020, not 1998.

 

[oldsmobile joe]

Well, it seems vague as to what exactly is staying on. Like 64nailhead said, if the exterior light itself is on, there's a short. If you mean the indicator on the dash comes on solid with the parking lights, you have a blown bulb (traditionally). The indicator comes on because, with the parking lights off, it pulls ground through the parking light circuit. When you turn the lights on, that ground goes away and it finds ground through the indicator. Now that you're throwing an LED in the mix, things get complicated because they only work one way and can't backfeed ground. It will require extensive testing beyond throwing parts at it. Get the meter out and go to town.

Why do you want white parking lights in front, anyway? It's 2020, not 1998.

This is correct. I tried adding them to one of my cars and chased my tail for the better part of the day till i figure this out.
I got around the problem on my 79 cutlass by wiring in the leds in parallel to the original park/turn signals.
I got tired of people pulling out in front of me in traffic. This has become more prevalent with the increasing population of DRL equipped vehicles driven by dolts. So i installed a cutlass front bumper equipped with park/turn lights and wired up the switch back lights as white DRLs and amber turn signals. I also used diodes to keep the leds from getting confused with the incandescent front bulb wiring.
The op might be able to get his working if he wired them up in parallel and replaced his incandescent bulbs with resistors. The resistors would allow the proper operation of the back feed ground required on these cars.

 

[jlcustomz]

Been through all sorts of mess converting to led's, does sound like a wiring issue here. incandesent bulbs light with pos & neg lead each way. led is one way only. Issues are kinda like reverse of old christmas tree light strings not working from 1 bulb or socket being bad. I swapped in entire 2016 camaro SS front with factory lights & 2016 z-06 vette rear 4 years ago. Wasn't a first try at getting wiring just right, but all good now. Just be patient & become a more accomplished electrician.
If you have led flasher, then you don't need load resister. These items mainly control flash speed, not whether flashing or not after a swap.
Every single little bulb in circuit must be led with clean sockets. One leftover old bulb in park/ turn can f things up, such as signal indicator lights lighting up with park lights on.
My first guess is either incorrect wiring for bulb OR incorrect bulb types--- Don't confuse single& dual sockets or get light bulb pushed in 180 degrees backwards.
Also , if you do want white running lights, just add universal running light units.

 

[popeye1978]

Do you have a rough schematic of the wiring changes you made?

 

[fleming442]

On the side marker, leave the dark brown, cut the other, and ground the bulb side.

 

[Dayzedandkonfuzed]

This is all good info...

All I can add is that I have never been able to find a Novita (tridon) HD12 or 552 flasher that works with LEDs. I've only found them in Painless and Performance World.

 

[UNGN]

Well, it seems vague as to what exactly is staying on. Like 64nailhead said, if the exterior light itself is on, there's a short. If you mean the indicator on the dash comes on solid with the parking lights, you have a blown bulb (traditionally). The indicator comes on because, with the parking lights off, it pulls ground through the parking light circuit. When you turn the lights on, that ground goes away and it finds ground through the indicator. Now that you're throwing an LED in the mix, things get complicated because they only work one way and can't backfeed ground. It will require extensive testing beyond throwing parts at it. Get the meter out and go to town.

Why do you want white parking lights in front, anyway? It's 2020, not 1998.

'Cause the '90's were cool. I put switchbacks in my Miata because its a tiny deathtrap, but the popups slow it down.

If I had Bought Clear bumper lens for My T-type, I'd put switchbacks in them... because the 90' were cool.