Key-start and push-button trucks. Wiring for GPS, dash cam and telematics installs.
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Which wires give constant, ignition and ground on a 2015 Ford F-150?
On a 2015 Ford F-150, take constant power from the Green/Red wire at the BCM 22-pin plug G, pin 22 and ignition from the White wire at the BCM 22-pin plug A, pin 16, and ground to clean, bare body metal. Meter every wire first.
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.
This page covers the 2015 Ford F-150, the first year of the aluminum-body truck. It was a clean-sheet redesign, so wiring from the 2014 and older trucks does not carry over. Ford sold it with a regular key on most XL and XLT trucks and with push-button start as standard on the Lariat, King Ranch and Platinum. The two get their ignition from different places, and the power section below shows both.
The wire colors come from an installer-reported wire table taken from a 2015 F-150 XLT with the 5.0 V8 and a regular key. We re-checked every wire on this page against that table, and a second installer table from 2019 trucks matches it on every one. The iDatalink install guide for 2015 to 2020 trucks backs up the gateway plug, and Ford's own owner's manual gives the fuse numbers. Our own team has not yet metered these on a 2015 truck, and each row says so.
OBD-II portDriver side lower dash
Best power spotDriver dash or BCM
System voltage12V
Ignition typeKey or push-button
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Where do I get constant, ignition and ground on a 2015 Ford F-150?
Take constant, ignition and ground from the same area. Push-button trucks get all three at the body computer. Key-start trucks get all three under the driver side dash, where the gateway plug and the ignition switch sit a few inches apart.
Option 1 Push-button trucks
At the BCM
Body computer, which is also the passenger fuse panel. Right side of the passenger footwell, behind the kick panel trim.
Constant
Green/Red
BCM 22-pin plug G, pin 22Always hot. The main BCM battery feed, on a 50A fuse.
Ignition
White
BCM 22-pin plug A, pin 16Push-button trucks: "Ignition Sense", hot in run. From a 2019 push-button table, not yet confirmed on a 2015.
Ground
Body ground
No ground wire listed at the BCMUse clean body metal in the passenger kick area. Never the battery negative post.
The constant here has the biggest fuse on the truck. On key-start trucks Ford's police guide shows the ignition cavity (pin 16) empty, so key-start trucks use Option 2.
Option 2 Key-start trucks
Under the driver dash
Gateway module on the back of the OBD port, plus the ignition switch on the steering column.
Constant
Green/Red
Gateway module behind the OBD port, black 24-pin plug, pin 24Always hot. Small fused circuit that also feeds the gateway, so keep the load light.
Ignition
White/Orange
Ignition switch, black 7-pin plug, pin 1Hot in run and start. On the steering column, a short reach from the gateway plug.
Ground
Black/Violet
Gateway module, black 24-pin plug, pin 14Module ground, same plug as the constant.
Accessory
Violet/Green
Ignition switch, black 7-pin plug, pin 6Hot in accessory and run
Start
Blue/White
Ignition switch, black 7-pin plug, pin 7Hot only while cranking
Key sense is Blue/Gray on pin 5 of the switch. Pins 2, 3 and 4 were not found in any source we checked.
No engine computer option on this truck. Ford's own upfit guide for this generation says not to connect anything into the PCM or its harness, because it can affect engine and transmission operation. Power pins from an installer-reported 2015 wire table and the iDatalink install guide for 2015 to 2020 trucks.
What are the turn signal, reverse and light wires on a 2015 Ford F-150?
Circuit
Wire color
Location and what it does
Left turnPositive +Not yet checked
Blue/Green (front)
Gray/Orange (rear)
BCM, passenger kick panel: 40-pin plug F, pin 39 front; 52-pin plug E, pin 26 rearFlashes with the left signal
Right turnPositive +Not yet checked
Yellow/Violet (front)
Green/Orange (rear)
BCM: 40-pin plug F, pin 38 front; 52-pin plug E, pin 52 rearFlashes with the right signal
Park lightPositive +Not yet checked
Blue/Gray
BCM: 22-pin plug G, pin 3 front; 36-pin plug C, pin 12 rearOn with the park lights. A Gray (-) switch input is also at the headlight switch, pin 11.
HeadlightNegative -Not yet checked
Blue
Headlight switch, left of the steering column, black 16-pin plug, pin 12Headlight switch input to the BCM, not lamp power
ReversePositive +Not yet checked
Green/Brown
BCM 36-pin plug C, pin 11, or at the driver kick panelHot in reverse
Dome lightPositive +Not yet checked
Gray/Violet
BCM 36-pin plug C, pin 13On with the dome light
Each chip shows the main insulation color with its stripe. Source: installer-reported wire table for a 2015 F-150 XLT 5.0 with a regular key, matched by an installer table for 2019 trucks.
Where are the brake, door, speed and CAN wires on a 2015 Ford F-150?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Violet/White
BCM 22-pin plug A, pin 1, or at the brake pedal switchHot with the pedal pressed. Sense only, no load.
Parking brakeNegative -Not yet checked
White/Violet
BCM 52-pin plug E, pin 47, or at the parking brake switchGrounds with the brake set. Only on trucks with a foot parking brake. Ford's 2015 order guide lists an electric parking brake on some XL, XLT and Lariat trucks.
In ParkNegative -Not yet checked
Green
Instrument cluster plug, pin 4 (Park Detect circuit)Grounds in Park. From Ford's 2018 and 2019 police guides for this generation.
Driver doorNegative -Not yet checked
Green/Violet (Ford)
Brown (installer)
BCM 52-pin plug E (Ford calls it C5), pin 33Door open input. Same pin in both sources, different color. Meter it.
Passenger doorNegative -Not yet checked
White
BCM 52-pin plug E, pin 21Door open input
Rear doorsNegative -Not yet checked
Green (left rear)
Yellow (right rear)
BCM 52-pin plug E, pin 46 left, pin 19 rightSuperCrew rear doors. SuperCab half doors not confirmed.
HazardNegative -Not yet checked
Brown
Hazard switch, or BCM black 52-pin plug B, pin 19Hazard switch input
Vehicle speedAC signalNot yet checked
Yellow/Orange
Engine computer (PCM), passenger side firewall, 95-pin plug: pin 12 EcoBoost, pin 26 on the 3.5 V6 and 5.0 V8Installer-reported from a 2015 truck. Ford says there is no hardwired speed output and not to tap the PCM, so use CAN or GPS speed instead.
CAN busDataNot yet checked
White/Blue (HS high)
White (HS low)
Gateway module behind the OBD port, black 24-pin plug, pin 20 high, pin 19 lowFor CAN-clip installs. Never cut or splice it. Medium-speed CAN is Gray/Orange (pin 23) and Violet/Orange (pin 22) on the same plug.
Sources: the same 2015 and 2019 installer tables, the iDatalink install guide for 2015 to 2020 trucks (CAN bus), and Ford's F-150 police modifier guides for 2018 and 2019 (In Park, driver door). Where Ford and an installer disagree, both are shown.
Which years share wiring with the 2015 Ford F-150?
This page2015, first year of the aluminum bodyThe main installer wire table on this page comes from a 2015 truck. Engines that year were the 3.5 V6, 2.7 EcoBoost, 3.5 EcoBoost and 5.0 V8, all with a six-speed automatic.
Same wiring2016, 2017, 2018, 2019 and 2020iDatalink puts 2015 to 2020 trucks in one install, and installer tables from 2015 and 2019 trucks match on every wire here. Ford renumbered the under-hood fuse box for 2018, so check fuse numbers on each year's page.
Not this page2014 and older, 2021 and newerThe 2014 truck is the older steel body. The 2021 truck is a new generation with a different ignition switch plug.
Where are the fuse boxes and ground points on a 2015 Ford F-150?
InteriorPassenger fuse panelThis is also the BCM. Right side of the passenger footwell, behind a trim panel. Fuse 18 (5A) feeds the ignition switch. Fuses 12 (7.5A) and 15 (10A) feed the gateway module.
Under the hoodPower distribution boxIn the engine compartment. Fuses 89 to 92 (20A) are the power points, 110 (10A) is 4x4 run/start, and 113 (7.5A) feeds the cameras and blind spot.
Ground pointsNot publishedWe found no Ford list of ground points for this truck. Use clean body or chassis metal, never the battery negative post, and never remove a factory ground.
Fuse numbers come from Ford's 2015 F-150 owner's manual, which matches the 2016 manual. Our team has not yet checked them on a truck.
Where is the OBD-II port on a 2015 Ford F-150?
OBD II
Diagnostic portOBD-II port: driver side lower dashPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2015 Ford F-150 wiring
What wire is constant power on a 2015 Ford F-150?
Green/Red at the BCM 22-pin plug G, pin 22. Always hot. Meter it before you tap it.
What wire is ignition on a 2015 Ford F-150?
White at the BCM 22-pin plug A, pin 16. Push-button trucks: "Ignition Sense", hot in run. Meter it before you tap it.
Where is the reverse wire on a 2015 Ford F-150?
Green/Brown (positive +) at the BCM 36-pin plug C, pin 11, or at the driver kick panel. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2015 Ford F-150?
Violet/White (positive +) at the BCM 22-pin plug A, pin 1, or at the brake pedal switch. Hot with the pedal pressed. Meter it before you tap it.
Where is the parking brake wire on a 2015 Ford F-150?
White/Violet (negative -) at the BCM 52-pin plug E, pin 47, or at the parking brake switch. Grounds with the brake set. Meter it before you tap it.
Where is the vehicle speed signal on a 2015 Ford F-150?
Yellow/Orange at the engine computer (PCM), passenger side firewall, 95-pin plug: pin 12 EcoBoost, pin 26 on the 3.5 V6 and 5.0 V8. Installer-reported from a 2015 truck. Meter it before you tap it.
Which years share wiring with the 2015 Ford F-150?
2016, 2017, 2018, 2019 and 2020. iDatalink puts 2015 to 2020 trucks in one install, and installer tables from 2015 and 2019 trucks match on every wire here.
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