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LED brake/tail/turn signal lamps.

wwest
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wwest Member

wwest

Posted
Posted

Thought this would be simple but...

My cruise control would not engage since the sensor indicated the brakes were always applied. Cruise control is always disabled when you even touch the brakes lightly. LED stop lamps/bulbs do not draw enough electrical current to satisfy the cruise control "brake not applied" sensing current. Solution was to use a 12 volt relay to connect a 50 watt halogen bulb as a load on the brake light circuit when the brake light are off.

Turn signal LEDs turned out to be a horse of a different color.

Although the 2001 996 turn signal flasher is solid state the turn signals went into a FAST FLASH mode indicating a failed turn signal lamp. I had to open the turn signal flasher relay and change the electrical current flow sensing resistor, actually a nichrome wire link, such that it still dropped ~0.20 volts with both low(er) current LED lamps operational. So now it will still "fast flash" if one lamp fails.

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