Which wires give constant, ignition and ground on a 2018 Jeep Cherokee?
On a 2018 Jeep Cherokee, take constant power from the Red/Lt.Green wire at the black 6-pin plug at the key barrel or start button, pin 6, ignition from the Purple/Brown wire at the black 6-pin plug at the key barrel or start button, pin 4, and ground to the Black wire at the black 6-pin plug at the key barrel or start button, pin 3. Meter every wire first.
Meter every wire before you tap it. Colors change with trim and build date.
OBD-II port:Under the dash, driver sideBest power spot:6-pin plugSystem voltage:12VIgnition type:Tip key or push to start
Where do I get constant, ignition and ground on a 2018 Jeep Cherokee?
Constant, ignition and ground are on one 6-pin plug. Check which key system you have first.
Option 1 Main option
6-pin plug
Black 6-pin plug at the key barrel or behind the start button.
Constant
Red/Lt.Green
Black 6-pin plug at the key barrel or start button, pin 612V battery feed.
Ignition
Purple/Brown
Black 6-pin plug at the key barrel or start button, pin 4Run signal on tip-key trucks only. On push to start trucks this pin is the start/stop signal, so use a fuse tap there.
Accessory
Not found
Not in the guideNo accessory wire is listed.
Ground
Black
Black 6-pin plug at the key barrel or start button, pin 3Ground.
Pin 5 White/Green is data. Never tap it.
Option 2 Ignition source
Fuse tap
Use this on push to start trucks.
Ignition
Fuse tap
Interior fuse panelA slot that is dead off and hot with the engine on. Meter it.
Use an add-a-fuse.
From Fortin's install guides for the 2015 to 2018 Cherokee with a tip key (guide 98491) and with push to start (guide 97951).
Where are the turn signal, reverse and light wires on a 2018 Jeep Cherokee for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Right turnNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Park lightDataNot yet checked
White/Brown
Black 10-pin plug on the parking lights switch, pin 1Multiplex wire, not a simple on/off signal. Do not use it as a sense input.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
ReverseNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
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 2018 Cherokee with a tip key (guide 98491) and with push to start (guide 97951).
Where are the brake, door, speed and CAN wires on a 2018 Jeep Cherokee for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
CAN dataDataNot yet checked
Gray/White (CAN 1 high)
Yellow (CAN 1 low)
OBD-II portCAN 2 is Gray (high) and White (low) at the same port. Data only.
BrakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
DoorsNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Parking brakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Source: Fortin's install guides for the 2015 to 2018 Cherokee with a tip key (guide 98491) and with push to start (guide 97951). Wires marked Not found were not in the guide.
Where are the fuse boxes and ground points on a 2018 Jeep Cherokee?
Steering column6-pin plugConstant, ground.
Interior fuse panelFuse tapIgnition on push to start.
Ground pointsBare body metalNever the battery negative post.
Locations from Fortin's install guides.
Where is the OBD-II port on a 2018 Jeep Cherokee?
OBD II
Diagnostic portOBD-II port: under the dash, driver sidePlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Which years share wiring with the 2018 Jeep Cherokee?
This page2018Jeep Cherokee.
Same plug2014, 2015, 2016, 2017Fortin shows the same 6-pin plug for these years.
Help build this pageWant to be famous?Share a wire color, a photo or a tip for this vehicle, and your name goes on this page.
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This page covers the 2018 Jeep Cherokee SUV, tip key or push to start.
The wire colors come from Fortin's install guide, read wire by wire. Our own team has not yet metered these on a 2018 Cherokee.
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 vehicle in front of you.
Common questions about 2018 Jeep Cherokee wiring
What wire is constant power on a 2018 Jeep Cherokee?
Red/Lt.Green at the black 6-pin plug at the key barrel or start button, pin 6. 12V battery feed. Meter it before you tap it.
What wire is ignition on a 2018 Jeep Cherokee?
Purple/Brown at the black 6-pin plug at the key barrel or start button, pin 4. Run signal on tip-key trucks only. Meter it before you tap it.
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 2018 Jeep Cherokee 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 2018 Jeep Cherokee 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 vehicle, compliments of" you.
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