Warning light for tail light stays on

[Redwinger8]

Warning light on Dash for tail light stays on since replacing the 4 brake lights 1157 with LED 1157 ( see below)has any one ells run into this?


http://www.autozone.com/autozone/parts/ ... 01736_0_0_

86 GL1200 interstate

[WingAdmin]

That's normal. It expects the bulbs to draw a certain amount of current. If it doesn't see that current being drawn, it assumes that the bulb has burned out, and illuminates the warning light on the dash.

LED bulbs draw very little current, much less than a standard incandescent bulb, so the bike thinks it is burned out.

You can either put a resistor across the bulb to make it draw more current (which kind of negates the benefits of having the LED), or remove the warning light from the dash.

[Redwinger8]

That's what I was thinking we'll I guess it's time to take the dashboard apart UGH thanks for the reply

[mikey1489]

worse part of this is that is also messes with auto turn singal cancel. does anyone know where the comparitor is located. I want to change mine so can have it work and still have my leds. any help be great.

[Rambozo]

It's called the Reserve Lighting Unit.

You can find instructions somewhere around here on bypassing it for LED lights.
You will also have to change out the flasher for an LED compatible unit.

[Bike...and Dennis]

Just use the stock bulbs. Your charging system expects a certain draw and LED can actually make it not work correctly. And personally I have seen a lot of LEDs that are not as visible as stock.

This will probably put a hex on mine, but I am still running the original bulbs. 36 years and 298,155 miles.