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Which wires give constant, ignition and ground on a 2018 Ford Transit Connect?
On a 2018 Ford Transit Connect, take constant power from the Red wire at the BCM behind the glove box, green 2-pin plug (C2280G), pin 2, ignition from the Brown/Yellow wire at the BCM, blue 60-pin plug (C2280C), pin 43, 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 2018 Ford Transit Connect, the last year before the facelift.
This van has a standard key. Power, ignition and park light colors come from an iDatalink guide that covers 2014 to 2018; the sheets that back it up stop at 2016. Our own team has not yet metered these on a 2018 van.
OBD-II portDriver side, under the steering column
Best power spotBCM behind the glove box
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2018 Ford Transit Connect?
Take constant, ignition and ground from the same area.
Option 1 Easiest
BCM behind the glove box
Passenger side. Constant, ignition and accessory sit in two plugs on the same module.
Constant
Red
BCM behind the glove box, green 2-pin plug (C2280G), pin 2Always hot. iDatalink and Directed agree.
Ignition
Brown/Yellow
BCM, blue 60-pin plug (C2280C), pin 43Hot in run. Brown/Yellow is also the right park light on another plug, so go by pin.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. Ford names ground G102 on the left side of the engine bay, in front of the air cleaner.
Accessory
Purple/Green
BCM, blue 60-pin plug (C2280C), pin 44Hot in accessory and run.
The starter is Blue/White on the green 27-pin plug (C212) next to the BCM, pin 4. Never tap the starter.
Option 2 Steering column
Ignition switch plug
Steering column, black 7-pin plug. No constant is listed here.
Ignition
Brown/Yellow
Ignition switch, black 7-pin plug, pin 1Hot in run.
Accessory
Purple/Green
Ignition switch, black 7-pin plug, pin 6Hot in accessory and run.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
The starter is Blue/White on pin 7 and key sense is Blue/Gray on pin 5. Never tap the starter.
BCM colors from the iDatalink install guide for 2014 to 2018. The Directed guide and the12volt sheet that agree with it stop at 2016.
What are the turn signal, reverse and light wires on a 2018 Ford Transit Connect?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundFord's 2014 layout book puts the left turn output at the BCM, plug C1, pin 24, but the wire color could not be read. Meter that pin.
Right turnNot foundNot yet checked
Not found
Not foundFord's 2014 layout book puts the right turn output at the BCM, plug C1, pin 22, but the wire color could not be read. Meter that pin.
Park lightPositive +Not yet checked
Yellow/Blue (left)
Brown/Yellow (right)
BCM behind the glove box, light green 42-pin plug (C2280A), pins 1 and 26Park lamp outputs. iDatalink, Directed and the12volt agree.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
ReversePositive +Not yet checked
Blue/White
BCM, brown 20-pin plug (C2280E), pin 20Hot in reverse. One owner found two Blue/White wires in that plug, so meter it. From 2014 and 2015 owner posts quoting the factory diagram.
Dome lightNegative -Not yet checked
White/Brown
BCM, gray 20-pin plug, pin 11Dome light supervision. From the 2014 to 2016 sheet.
Each chip shows the main insulation color with its stripe. Sources: the iDatalink install guide for 2014 to 2018 and a 2014 to 2016 Transit Connect wire sheet on the12volt.
Where are the brake, door, speed and CAN wires on a 2018 Ford Transit Connect?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Green/Red
BCM behind the glove box, green 42-pin plug (A), pin 16Hot with the pedal pressed. From the 2014 to 2016 sheet.
DoorsNegative -Not yet checked
Green/Purple (driver)
White (passenger)
Green (left rear)
Yellow (right rear)
Yellow/Orange (rear cargo door)
BCM behind the glove box. Driver door: brown 60-pin plug (C2280B), pin 45. The others are pins 46, 44, 25 and 47 in an owner postEach grounds when its door is open. iDatalink confirms the driver door. The others come from one 2015 owner post that did not name the plug, so meter them.
Parking brakeNegative -Not yet checked
White/Purple
BCM, blue 60-pin plug (C2280C), pin 25, or under the hand brake consoleGrounds with the parking brake set. From 2014 owner posts.
HazardNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Lock / unlockNegative -Not yet checked
Gray/Yellow (lock)
Purple/Gray (unlock)
BCM: brown 60-pin plug (C2280B), pin 36; blue 60-pin plug (C2280C), pin 26Lock and unlock inputs.
SeatbeltNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedNot foundNot yet checked
Not found
Not foundFord's 2014 layout book shows a speed output only on the taxi and upfitter harness (BCM plug C3, pin 52). Its color could not be read.
TachAC signalNot yet checked
Green/Blue
Any fuel injector (2.5L engine)Engine speed signal. On the 1.6L, use the black 8-pin plug on top of the engine.
CAN busDataNot yet checked
White/Blue (high)
White (low)
OBD port, pin 6 and pin 14A Ford service message lists the 2018 van with a gateway module at the OBD port, while iDatalink still taps CAN at the BCM blue 60-pin plug, pins 7 and 8. Check your van. Never cut or splice them.
Sources: the iDatalink install guide for 2014 to 2018, Directed's guide for 2014 to 2016, a 2014 to 2016 Transit Connect wire sheet on the12volt and owner posts quoting the factory diagrams. Turn signals, headlight, hazard, seatbelt and speed were not found.
Which years share wiring with the 2018 Ford Transit Connect?
This page2018Covered by the iDatalink guide only.
Same wiring2014, 2015, 2016 and 2017iDatalink lists 2014 to 2018 as one install. Directed and the12volt agree with it for 2014 to 2016. 2017 and 2018 rest on iDatalink alone.
Where are the fuse boxes and ground points on a 2018 Ford Transit Connect?
InteriorBelow the glove boxRemove the glove box bottom panel. Ignition switch F85 (7.5A), audio F79 (15A), reversing lamp F76 (10A).
Under the hoodEngine bay fuse boxFloor console power point F17 (20A), cargo area power point F15 (20A), stop lamp switch F21 (5A). Vans also have a fuse box on the right side of the cargo area.
Ground pointsG102, left side of the engine bayIn front of the air cleaner, per a Ford 2016 install sheet. Inside the van use clean body metal, never the battery negative post.
Fuse list from a fuse guide for 2014 to 2018. Owners report the power points stay hot with the key off. Check the lid label before you use a slot.
Where is the OBD-II port on a 2018 Ford Transit Connect?
OBD II
Diagnostic portOBD-II port: driver side, under the steering columnPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2018 Ford Transit Connect wiring
What wire is constant power on a 2018 Ford Transit Connect?
Red at the BCM behind the glove box, green 2-pin plug (C2280G), pin 2. Always hot. Meter it before you tap it.
What wire is ignition on a 2018 Ford Transit Connect?
Brown/Yellow at the BCM, blue 60-pin plug (C2280C), pin 43. Hot in run. Meter it before you tap it.
Where is the reverse wire on a 2018 Ford Transit Connect?
Blue/White (positive +) at the BCM, brown 20-pin plug (C2280E), pin 20. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2018 Ford Transit Connect?
Green/Red (positive +) at the BCM behind the glove box, green 42-pin plug (A), pin 16. Hot with the pedal pressed. Meter it before you tap it.
Where is the parking brake wire on a 2018 Ford Transit Connect?
White/Purple (negative -) at the BCM, blue 60-pin plug (C2280C), pin 25, or under the hand brake console. Grounds with the parking brake set. Meter it before you tap it.
Where is the CAN bus on a 2018 Ford Transit Connect?
White/Blue (high) and White (low) at the OBD port, pin 6 and pin 14. A Ford service message lists the 2018 van with a gateway module at the OBD port, while iDatalink still taps CAN at the BCM blue 60-pin plug, pins 7 and 8.
Which years share wiring with the 2018 Ford Transit Connect?
2014, 2015, 2016 and 2017. iDatalink lists 2014 to 2018 as one install.
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