Electronics » Tail Light "Brake Activated" Wire

Hello all.

Which line (color/pattern) to our rear brakes is the "on/active" circuit?

There are several at the connector. I need the lever/pedal active wire.

Zitat von Robin Dean im Beitrag #1

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Which line (color/pattern) to our rear brakes is the "on/active" circuit?There are several at the connector. I need the lever/pedal active wire.

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It is additional lighting, which I've already powered via my own switched aux block. All I need is a trigger to tell it when the brakes are active (not power it). So ... much like a relay.

I did some mods on my RS, I remember the rear tail has 3 wires, one is the gnd, one is the 10V o some similar for the normal light, the third one is the 12V activated by the ECO. take care it is not a continuos 12V but a pwm signal.

You're going to have to use a razor to split the bundle of wires that the tail light (your picture) is coming from. See the arrows on the picture I attached. The gray wire should be the brake light (active when brakes are engaged) and the other is the tail light.

FYI: This mess has since been cleaned up with the addition of the Neutrino Black Box (Aurora).