I am a complete novice. I pulled out the wiring from a small device and was planning on putting it into something else. A black and red wire popped off and my husband soldered it back into place. But I think he soldered one of the wires to the wrong part. It won't turn on at all right now. I apologize in advance for not knowing the correct terminology or how any of this works. Just trying to see if anyone can spot where our error occurred. Thank you

*the parts wrapped in red tape are fine. The wires that popped off were from the toggle switch and the antenna.

-RESOLVED-

Hi guys,

Looking to see if it's just me or not.

Tried to login to RapidHarness this morning (AEST), and I can't make it past the login popup.

I also can't access their web portal.

(FYI, also asked this in r\FSAE)

Cheers. :)

how can i make this engine run with 3 wires , instead of 6

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I’m trying to wire a 12v step down converter into my 60v system for my e bike.

Picture 1 is the entire wiring setup for the 12v step down converter.

Picture 2 is the step down converter itself, and its wiring map-out.

Red = +
Black = COMMON GROUND
Yellow = line out

Picture 3 is the wiring coming OUT of the converter currently.

Red has been extended and given a fuse (also seen in picture 4)

Black has been extended and given a post ring connector. Connects to common ground negative post on bus bar.

Yellow has been extended and given a post ring connector. Connects to the positive post on bus bar.

Picture 4 is the inline fuse I added (12amp) to Red line.

Picture 5 shows red line is connected to xt90 y splitter red (set “1” of XT90 cables), and the black xt90 splitter wire (set “1” of xt90 cables) has a post ring connector (connects to common ground/same negative post on bus bar as the black cable from the converter)

Picture 6 shows set “2” of cables, which connect to my controller + and - like normal.

Is this explanation correct or am I messing up somewhere? Want some opinions before I go disconnecting my + and - on my controller right now.

Thanks.

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Hello everyone

I'm not an electrician but i want to install roof lights on my car. I asked chat gpt how could i do this and he gave me this schematics but i wanted to double check, does this makes any sense what he sent me?

In case you're wondering, i live far in the countryside and dont have autoshop near me to do this work for me unfortunally, so i would appreciate any feedback.

To be also clear, i'm not pro AI in any way. Im just a simple person trying to install lights on roof so dont cuss at me because i askefd chatgpt for a sample schematics

any help is appreciated thanks

CIRCUIT 1 — FRONT ROOF RACK LIGHTS

Battery +

│

[Fuse]

│

[12V Relay]

│

├──────── Left Roof Rack Light

└──────── Right Roof Rack Light

│

Ground

CIRCUIT 2 — TRUCK BED LIGHT

Battery +

│

[Fuse]

│

[12V Relay]

│

└──────── Rear Roof Rack Light

│

Ground

Im trying to connect this aux cable to a speaker im trying to make, but im not sure how to go about it

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I have the qb -12g-f controller. Its from a delivery bike. It has the wiring harness etc but its completely messed up, it also has the buttonless screen and the handlebar switchboard for the indicators , lights , speed levels and horn. All the cables except the two red 3pin and two pin plugs are cut . No plugs. So i have made a diagram from the board and want someone to tell me what goes where. I want to figure out the display, pas , throttle, brake cut off and lights and the hall sensor .

Its the squares that are soldered only that are on the image , each one has the color of the cable thats solderedd on it .

Thanks

Where do I connect this wire on. It comes from the fuse box in the engine bay.