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I replaced the turn signal, side marker and taillight with led bulbs, also installed the hyper flash harness and all lights work as they should except the emergency lights( they still flash fast ) but I am not worried about those. Last night I drove and noticed that with the lights out when I hit the brakes the dashboard lights would come on, off the brakes they would go out, then with the lights on it would not happen, I have not checked what could be the problem but maybe somebody knows the cause, thank's Jose.
The Hyperflash unit only controls turn signal flashing and not the hazards so that is why they hyperflash.
Not sure exactly what is causing your dash light issue but I am rather sure it is related to the fact that you apparently did not install resistors to mimic the OEM design loads it is expecting to see. The rear brake lights and the rear turn signals use the same circuit (same filament/LEDs).