"How to wire turn signals and brake lights into a single filament bulb?" is a question I often get. It is slightly tricky to do, but very doable with the help of some relays and a YouTube video. The key to making there whole thing work is understanding how a relay works, specifically pin 87A. That is the pin on the 5 pin Bosch style relay that allows this functionality to work. Hopefully this video helps you wire your tail lights and turn signals on your automotive project!

VIDEOS & PLAYLISTS:
➡ My Automotive Wiring Playlist:    • Automotive Wiring HowTo's  
➡ How to wire a relay with a positive or negative trigger:    • 5 Pin Relay Wiring For Beginners | Di...  
➡ How to choose the right fuse and wire sizes:    • What Size Fuse? ANSWERED! @WiringRescue  
➡ How to wire an Inertia Switch:    • Fuel Pump Inertia Switch Wiring for B...  
➡ How to wire a Starter:    • How To Wire a Starter Relay Solenoid ...  
➡ How to wire a fuel pump:    • How To Wire Electric Fuel Pump Relay ...  

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Turn Signal Flasher https://amzn.to/3UOTsFy
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TIME STAMPS:
00:00 How to Wire Turn Signals AND Brake Lights into a Single Filament Bulb
00:30 Why is wiring a brake light and turn signal to one bulb hard?
01:08 The components in the circuit
03:40 The 5Pin Bosch Style relay
04:14 The 4 Pin Bosch Style relay
05:32 Wiring the fuse box
05:50 Wiring Pin 87 on the relay
06:19 Wiring Pin 30 on the relay
07:03 Wiring Pin 85 on the relay
07:48 Wiring Pin 86 on the relay
09:10 Wiring Pin 87A on the relay
09:37 Understanding how 1 bulb can have 2 functions
10:35 DON'T FORGET TO SUBSCRIBE!

Please Note: This video description contains affiliate links, which means that if you click on one of the product links above, I will receive a small commission. This helps support this channel and allows me to continue to make videos like this. Thank you kindly for your support!

DISCLAIMER:
This video is for entertainment only. I am just a random guy on the internet, not an expert or professional. Do not try to reproduce anything in this video without the guidance of a professional as auto repair & electricity can be dangerous & destructive."