Which wires give constant, ignition and ground on a 2015 Mazda CX-5?
On a 2015 Mazda CX-5, take constant power from the Yellow wire at the white 24-pin plug on the start-stop unit, under the steering column, pin 12, ignition from the Light Green/Red wire at the white 24-pin plug on the start-stop unit, under the steering column, and ground to the Pin 13 wire at the white 24-pin plug on the start-stop unit, under the steering column, pin 13. 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:Start-stop unit plugSystem voltage:12VIgnition type:Push-button (this page)
Where do I get constant, ignition and ground on a 2015 Mazda CX-5?
Constant, ignition, accessory and ground are on one plug at the start-stop unit.
Option 1 All the power
Start-stop unit plug
White 24-pin plug under the steering column.
Constant
Yellow
White 24-pin plug on the start-stop unit, under the steering column, pin 1212V battery feed.
Ignition
Light Green/Red
White 24-pin plug on the start-stop unit, under the steering columnHot with the button on.
Accessory
Brown/Red
White 24-pin plug on the start-stop unit, under the steering columnAccessory.
Ground
Pin 13
White 24-pin plug on the start-stop unit, under the steering column, pin 13Ground pin on the same plug. Or use bare body metal.
Starter is Brown/Black. Never tap it.
Option 2 Backup
Fuse tap
If you would rather not open the column.
Ignition
Fuse tap
Interior fuse panelBackup: a slot that is dead off and hot on.
Use an add-a-fuse.
From Fortin's install guide for the 2013 to 2016 CX-5 with push-button start (guide 63611).
Where are the turn signal, reverse and light wires on a 2015 Mazda CX-5 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 lightNegative -Not yet checked
Green
Yellow
White 6-pin plug inside the parking light switch, pins 4 and 3Fortin marks this optional. Meter it first.
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 guide for the 2013 to 2016 CX-5 with push-button start (guide 63611).
Where are the brake, door, speed and CAN wires on a 2015 Mazda CX-5 for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
CAN dataDataNot yet checked
Red/Yellow (low)
White/Black (high)
White 24-pin plug on the start-stop unit, under the steering columnNever cut or splice the CAN wires.
DoorsNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
BrakeNot 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 guide for the 2013 to 2016 CX-5 with push-button start (guide 63611). Wires marked Not found were not in the guide.
Where are the fuse boxes and ground points on a 2015 Mazda CX-5?
Steering columnStart-stop unit plugPower and CAN.
DashParking light switchParking light wires.
Ground pointsPin 13 or body metalNever the battery negative post.
Locations from Fortin's install guides.
Where is the OBD-II port on a 2015 Mazda CX-5?
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 2015 Mazda CX-5?
This page2015Mazda CX-5.
Same wiring2013, 2014, 2016Fortin uses the same guide for these years.
Other years2017, 2018, 2019, 2020Different wire colors. Check the page for your year.
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This page covers the 2015 Mazda CX-5 compact SUV with push-button start.
The wire colors come from Fortin's install guide, read wire by wire. Our own team has not yet metered these on a 2015 CX-5.
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 2015 Mazda CX-5 wiring
What wire is constant power on a 2015 Mazda CX-5?
Yellow at the white 24-pin plug on the start-stop unit, under the steering column, pin 12. 12V battery feed. Meter it before you tap it.
What wire is ignition on a 2015 Mazda CX-5?
Light Green/Red at the white 24-pin plug on the start-stop unit, under the steering column. Hot with the button on. Meter it before you tap it.
Which years share wiring with the 2015 Mazda CX-5?
2013, 2014, 2016. Fortin uses the same guide for these years.
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 Mazda CX-5 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 Mazda CX-5 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.
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.
