The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

bennylava · 08-03-2022, 05:56 AM

Never really thought about this one, but what's the 3rd wire for, in the reverse lights? I'm asking because I'm having to change out the LED bulb in the reverse light on my 87 due to corrosion. But I noticed the wire on the outside of the plug is disconnected. The one not coming out of the bottom. But the light was working anyway. It only recently died.

So I wanted to ask what that 3rd wire is actually for. And if I should hunt it down and connect it when I replace the connector.

This one has 2 wires:

https://www.amazon.com/Standard-Moto...ustomerReviews

This one has 3:

https://www.amazon.com/ACDelco-LS244...ct_top?ie=UTF8

08-03-2022, 05:56 AM	#1
bennylava Registered User Join Date: Jul 2017 Location: Texas Posts: 396	What's the 3rd wire do? Never really thought about this one, but what's the 3rd wire for, in the reverse lights? I'm asking because I'm having to change out the LED bulb in the reverse light on my 87 due to corrosion. But I noticed the wire on the outside of the plug is disconnected. The one not coming out of the bottom. But the light was working anyway. It only recently died. So I wanted to ask what that 3rd wire is actually for. And if I should hunt it down and connect it when I replace the connector. This one has 2 wires: https://www.amazon.com/Standard-Moto...ustomerReviews This one has 3: https://www.amazon.com/ACDelco-LS244...ct_top?ie=UTF8 Last edited by bennylava; 08-03-2022 at 07:28 AM.