Brake lights always on after connecting a spoiler.

6thgenius · Aug 31, 2014

So I installed a spoiler, plugged in the cable and now brake lights don't turn on when I hit the brakes. Basically, brake lights think they're accessory lights. Any ideas on what could be wrong? Any help would be great.
P.S. Hopefully the photo will make things a little bit clearer.

6thgenius · Aug 31, 2014

Thought it's important, correct me if I posted in the wrong thread

chaby_91 · Sep 1, 2014

Did you do this with the electrical plan? Sounds to me like you spliced the wrong wire.

FNCONE · Sep 1, 2014

with a multimeter take the plug where the bulb is on. Remove the bulb or enter the probe from the back, have a friend press the brakes and test each wire. The one that stays on (12v) all the time is not it (im assuming that is the one you tapped into) the one that gets 12v only when you press the brake is the wire you want to tap into.

6thgenius · Sep 1, 2014

Chaby, I didn't splice anything. Just disconnected the 3rd brake light, and connected the spoiler instead. The issue takes place even after I reconnect everything back.
@FNCONE thanks, I'll do that, just wanna fix it.

6thgenius · Sep 3, 2014

Ok, so this is where I plugged in the spoiler.

All bulbs are fine, is my car drunk?

xci.ed6 · Sep 4, 2014

It works with oem 3rd, not with spoiler?

Yeah, your car is drunk, time to get good with a dvom.

6thgenius · Sep 4, 2014

xci.ed6 said:
It works with oem 3rd, not with spoiler?

Nope. Also I've heard that some people had their 3rd brake lights working in similar circumstances. Mine's always off.

xci.ed6 said:
Yeah, your car is drunk, time to get good with a dvom.

Just got one yesterday. Never messed with one before, so now it's like some sort of alien technology to me. lol

spacemonkee23 · Sep 4, 2014

Did you pinch a wire when bolting the spoiler down. Possibly shorted out the circuit and blew a fuse?

6thgenius · Sep 4, 2014

I thought about it ,but the wire was pretty loose when I pulled it. Checked all the fuses, they're all fine.

Brake lights always on after connecting a spoiler.

6thgenius

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6thgenius

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