Alernator wiring issues

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If you only have two wires, it really shouldn't matter. The door switch is just an on or off switch. I would go from blue to blue and then tie the pink to yellow.

Factory side wires:
Orange is constant 12 volts
yellow is switched 12 volts
Black Ground
Gray Illumination
Brown Dimmer
Tan LF +
Gray LF-
Lt Grn RF+
Drk Grn RF-
Brown LR+
Yellow LR-
Lt Blue RR+
Drk Blue RR-
The aftermarket reverse harness should be mrked I hope that helps

On some of the earlier fords. If the bulb is blown in the instrument panel. It will not complete the circuit to charge. Turn your key on with the engine off to see if the red light comes on that shows the battery.

since there is no specific part in a wiring harness called "the pigtail". General wire connection instructions are: Cut back the wire at least 1/2" and wrap the wire ends together. Solder the connection so it has good continuity and won't come apart. Use shrink tubing to protect the joint and also wrap with good quality electrical tape, especially in under-hood areas where moisture can get into a connection. NEVER cut or tap into the heavy yellow wire under the dash. That wire controls the air bag system and tampering can cause it to deploy (very dangerous). Never solder wires together by laying them side by side. They will join, but the solder can act as a fuse and cause problems later.
If working with more than one wire, label them so you know exactly where they went so you can put them back correctly. In systems using computerized controls, a mistake can be costly.

Take your new alternator (old one too, if you can return the new one) to an auto parts store. They usually do free alternator testing. If your old one is still good, you can put it back in, but check the contacts on the wiring harness. Pick up a can of electrical contact cleaner at the store and blast that ******.

in every automotive wiring harness there are extra wires, the wiring harnesses fit all the trim levels and all the special options that are avail, so one truck may not have a certain option and another does, all the connectors are there on both trucks, it is far cheaper to just build one harness than many for each level of trim or installed accessory.

YES the yellow black is for the light circuit,hook it up and buy the way you can get a replacement plug for the alternator at any decent parts house.good job spotting the broken wire have a good day DB

HIYA!
All Equinoxes has yellow coloured wire harness to identify this as a air-bag system.
This yellow coloured wire 'system network' has connections in some areas...one is located at the front passenger's floor area close to the door (right-side corner area, just remove screw or clip and plastic trim part to gain access to see yellow wire there-it has socket plug connected with red clip-string to secure it) and another yellow wire is found between the front seats-you need to remove armrest, center console area and possible remove the front passenger seat to see yellow wire connect to black device underneath carpet in the middle.
Check to ensure the yellow wire sockets are plugged in properly, and not accidently cut or pulled off during your underseat repair.
In case your Equinox has roof side air-bag option, the yellow wire/sensor are located below the front seatbelt device inside the lower pillar frame area. (it's between the doors)
Hope this help you solve your repair task.