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Old 03-30-2021, 04:36 PM
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Sledge Sledge is offline
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Join Date: Apr 2004
Location: Long Beach, CA
Cobra Make, Engine: BDR #168 427W 66+K miles and counting
Posts: 338
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Default Trying to update an old RT2 to LED's

Yep, trying to go all LED for my brake, running, and turn signal lights.

I searched through several threads and did not find what I needed, so I'm looking for some expert help. The car is a BDR, chassis 168. 2004 build. White plastic bulb housings. I was part way into my conversion attempt, with all lights LED except for the rear turn signal bulbs. As long as the running lights or headlights were not on, the front and back turn, stop, and running lights work fine. Turn on the running lights or headlights, and the right front turn signal does not work. Thinking the old style 1156 incandescent bulbs may be affecting the turn signal relay, I placed 1156 LED's into the rear turn signals and things got much worse. With no running lights on, the right rear turn signal would not work, but the left turn signals would, albeit at a slower pace. I inserted a different but older digital signal relay and recovered some functionality but not all. The installed signal relay has a blue plastic case containing a circuit board, and a white wire extending out of the back of the blue case, apparently a ground wire. No ID otherwise. Both were three-pronged.

I need to note that the brake/rear running lights are Street Magic motorcycle LED's that I connected directly to the brake/tailight wiring, bypassing the crappy 1056 socket.

Recommendations for a new signal relay? Do I need a three-prong or is a two-prong better for my old girl's wiring? I don't have any resistors wired into this system, but I was told an LED signal relay was all I needed. Something is still amiss however and I don't know what it is.

All help appreciated in sorting this problem.

Thank you!
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