LED Turn Signals
04-15-2011, 07:29 PM
#1
LED Turn Signals Hey, can someone explain to me why a 3157 LED replacement for an incandescent 3157 bulb stays lit when you turn on your lights?
I've tried three different models so far (including a 3156), and they all exhibit the same issue.
I've tried three different models so far (including a 3156), and they all exhibit the same issue.
04-15-2011, 08:58 PM
#2
its something to do with the the fact that they are LED, the resistance is different. There is a way to correct it, I'm just not sure exactly what it is, its something with adding a resistor somewhere, just not sure where
04-16-2011, 01:24 PM
#5
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I ran into the same problem.
The chassis electronics load tests the circuits when the lights are on.
The symptom for you is that both turn signals illuminate when the lights are on, yet they flash fine.
Unfortunately, even with an LED flasher, it stills stay on, so you have to get a load resistor. The chassis sends a voltage to see if there is a load, then kills the voltage.
Otherwise, there's a constant 13.4 volts across the terminals when there is no incandescent lamp there, and the LED does not draw a high enough of a load.
I got this for the fix:
http://www.v-leds.com/BlinkerWarning...-p5679822.html
The chassis electronics load tests the circuits when the lights are on.
The symptom for you is that both turn signals illuminate when the lights are on, yet they flash fine.
Unfortunately, even with an LED flasher, it stills stay on, so you have to get a load resistor. The chassis sends a voltage to see if there is a load, then kills the voltage.
Otherwise, there's a constant 13.4 volts across the terminals when there is no incandescent lamp there, and the LED does not draw a high enough of a load.
I got this for the fix:
http://www.v-leds.com/BlinkerWarning...-p5679822.html
04-16-2011, 01:32 PM
#6
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Join Date: Mar 2004
Location: Scottsdale, Az
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I ran into the same problem.
The chassis electronics load tests the circuits when the lights are on.
The symptom for you is that both turn signals illuminate when the lights are on, yet they flash fine.
Unfortunately, even with an LED flasher, it stills stay on, so you have to get a load resistor. The chassis sends a voltage to see if there is a load, then kills the voltage.
Otherwise, there's a constant 13.4 volts across the terminals when there is no incandescent lamp there, and the LED does not draw a high enough of a load.
I got this for the fix:
http://www.v-leds.com/BlinkerWarning...-p5679822.html
The chassis electronics load tests the circuits when the lights are on.
The symptom for you is that both turn signals illuminate when the lights are on, yet they flash fine.
Unfortunately, even with an LED flasher, it stills stay on, so you have to get a load resistor. The chassis sends a voltage to see if there is a load, then kills the voltage.
Otherwise, there's a constant 13.4 volts across the terminals when there is no incandescent lamp there, and the LED does not draw a high enough of a load.
I got this for the fix:
http://www.v-leds.com/BlinkerWarning...-p5679822.html
