Which wires give constant, ignition and ground on a 2015 Ford Expedition?
On a 2015 Ford Expedition, take constant power from the Green/Red wire at the ignition switch, black 8-pin plug at the ignition barrel, ignition from the White/Orange wire at the ignition switch, black 8-pin plug at the ignition barrel, and ground to clean, bare body metal. Meter every wire first.
Meter every wire before you tap it. Colors change with trim and build date.
OBD-II port:Driver side of the dashBest power spot:Ignition switch plugSystem voltage:12VIgnition type:Key (this page)
Where do I get constant, ignition and ground on a 2015 Ford Expedition?
Take constant, ignition and ground from the same area.
Option 1 Easiest
Ignition switch plug
Black 8-pin plug at the ignition barrel. Remove the lower column cover and the shrouds to reach it. Key start trucks.
Constant
Green/Red
Ignition switch, black 8-pin plug at the ignition barrelAlways hot, 12V battery feed to the switch.
Ignition
White/Orange
Ignition switch, black 8-pin plug at the ignition barrelHot in run and start.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
Accessory
Purple/Green
Ignition switch, black 8-pin plug at the ignition barrelHot in accessory and run.
The starter is Blue/White and the key sense wire is Blue/Gray on the same plug. Never tap the starter.
Option 2 Ignition
Fuse tap
For switched power without touching the column.
Ignition
Fuse tap
Interior fuse panel, passenger footwell, fuse 38 (10A)A 2015 owner reports this slot comes on with the key and stays on a few minutes after key off until a door opens. Use it for a camera or tracker only.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
Fuse 28 (15A) feeds the ignition switch. Check the lid label before you use a slot.
Colors from Fortin's install guides for the 2015 to 2017 Expedition with a standard key. Two editions of the guide (2021 and 2025) print the same colors.
Where are the turn signal, reverse and light wires on a 2015 Ford Expedition for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundFuse 14 (15A) is left turn and stop/turn. No wire color found.
Right turnNot foundNot yet checked
Not found
Not foundFuse 13 (15A) is right turn and stop/turn. No wire color found.
Park lightPositive +Not yet checked
Yellow/Blue
Body module plugs (gray 10-pin and black 26-pin), driver side of the dash per FortinHot with the park lights on.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
ReverseNot foundNot yet checked
Not found
Not foundFuse 15 (15A) feeds the reverse lamps. No wire color found.
Dome lightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Each chip shows the main insulation color with its stripe. Source: Fortin's install guides for the 2015 to 2017 Expedition with a standard key.
Where are the brake, door, speed and CAN wires on a 2015 Ford Expedition for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
BrakeNot foundNot yet checked
Not found
Not foundEngine bay fuse 43 (10A) is the brake on/off switch. No wire color found.
DoorsNegative -Not yet checked
Green/Purple (driver door)
Body module plugs (gray 10-pin and black 26-pin), driver side of the dash per FortinDriver door pin. Goes to ground with the door open.
Parking brakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
HazardNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
StarterPositive +Not yet checked
Blue/White
Ignition switch, black 8-pin plug at the ignition barrelHot only while cranking. Not a power source.
Vehicle speedNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
CAN dataDataNot yet checked
Gray/Orange (high, pin 3)
Purple/Orange (low, pin 11)
OBD-II port, pins 3 and 11CAN pair at the diagnostic port. Use a plug-in harness. Never cut or splice the CAN wires.
Sources: Fortin's install guides for the 2015 to 2017 Expedition with a standard key, a 2015 to 2017 fuse guide and a 2015 owner post on an Expedition forum. Turn, brake, reverse, headlight, dome and speed wires were not found.
Where are the fuse boxes and ground points on a 2015 Ford Expedition?
InteriorPassenger footwell, under the right side of the dashBehind a cover. Fuse 28 (15A) ignition switch, fuse 38 (10A) radio, moonroof and mirror.
Under the hoodPower distribution boxIn the engine bay. Fuse 43 (10A) brake switch.
Ground pointsClean body metalNo named ground point was found. Never use the battery negative post.
Fuse list from a fuse guide for 2015 to 2017 (2017 adds fuses 48 and 49). Check the lid label before you use a slot.
Where is the OBD-II port on a 2015 Ford Expedition?
OBD II
Diagnostic portOBD-II port: driver side of the dashPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Which years share wiring with the 2015 Ford Expedition?
This page2015Expedition and Expedition EL with a standard key.
Same wiring2016 and 2017Fortin covers 2015 to 2017 with one install guide.
Not this page2014 and older, 2018 and newerThe wiring changed for 2015 (new ignition plug and body module plugs) and again for the 2018 truck. Push-button 2015 to 2017 trucks are not covered by this source.
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This page covers the 2015 Ford Expedition and Expedition EL with a standard key, the first year of the refresh.
The 2015 refresh changed the ignition plug and the body module plugs, so the 2014 colors do not carry over. The wire colors here come from Fortin's install guide, read wire by wire. Our own team has not yet metered these on a 2015 truck.
Written by API Signal, fleet GPS and camera installers for 35+ years across Georgia, South Carolina and North Carolina, installing every major telematics and camera brand. Every wire on this page lists its source.
Test every wire with a meter before you tap it
No wiring information is ever guaranteed. Colors and locations change with trim, options and build date, and the manufacturer can change them in the middle of a model year. We share this as a starting point for installers, and you are responsible for confirming every connection on the truck in front of you.
Common questions about 2015 Ford Expedition wiring
What wire is constant power on a 2015 Ford Expedition?
Green/Red at the ignition switch, black 8-pin plug at the ignition barrel. Always hot, 12V battery feed to the switch. Meter it before you tap it.
What wire is ignition on a 2015 Ford Expedition?
White/Orange at the ignition switch, black 8-pin plug at the ignition barrel. Hot in run and start. Meter it before you tap it.
Which years share wiring with the 2015 Ford Expedition?
2016 and 2017. Fortin covers 2015 to 2017 with one install guide.
Help build this page
Had the panels off on one of these? Show the next installer what you found.
No one has sent photos for the 2015 Ford Expedition yet, so yours could be the first. Every photo, wire color and tip we use goes on this page with your name on it, and it saves the next installer time under the dash.
1. Snap it
The plugs, tap points, fuse boxes and ground points. Phone photos are fine.
2. Send it
Tap "Add yours" at the top of this page. Your tip and your photos go in the same box.
3. See your name on it
We check every tip, then post it here "Compliments of" you, by name.
Compliments of
The installers who helped build this page.
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Founding contributor spot: openThe first installer to confirm a wire or send photos for the 2015 Ford Expedition gets their name here, and it stays here.
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Every tip we use gets a creditThe wire you checked is marked "Checked on a truck, compliments of" you.
Want to be famous?
Your name, right on this page, for everyone who uses it to see. Add your tip and your photos in one box.
