How To Test 4 Way Trailer Plug

How To Test 4 Way Trailer Plug. If the trailer plug wiring on your vehicle or trailer is damaged or not working correctly, you can replace the connector with a CURT splice-in plug or socket. The light tester fits four-way flat plugs and a small, convenient size allows it to fit easily in your glove compartment or pocket.

HOPKINS CHEVY-FORD-GMC-DODGE MULTI-TOW 7&4 WAY TRAILER ... (Kevin Ball)

Learn all about trailer wiring at HowStuffWorks. This tester is small, light, and the LEDs are easy to see. Plugs (trailer side) and sockets (vehicle side) are available in all standard formats and can be spliced into your existing tow wiring.

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A colour coded trailer plug wiring guide to help you require your plugs and sockets.

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Or do I need to get an adapter ? Some trailer wiring kits include the connectors and supplies needed for installation, but some don't. You don't know if the wiring is bad or you have bad bulbs.