the automotive RELAY explained... when you need it and why DIY
Auto Electrical Relays Explained - How they work and where they're used.
How To Wire An Automotive Relay
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How a 5-pin automotive relay works. 30 is the source, 87a is NC, 87 is NO #thecarfixer #electrical
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How to Wire a 5 Pin Automotive Relay. Pins 87/30/85/86/87a . Bosch Style. Fans / Fuel Pump / Lights