Which wires give constant, ignition and ground on a 2015 Toyota Yaris?
On a 2015 Toyota Yaris, take constant power from the Yellow wire at the white 8-pin ignition switch plug, steering column, pin 4, ignition from the Pink wire at the white 8-pin ignition switch plug, steering column, pin 8, 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:Under the dash, driver sideBest power spot:Ignition switch plugSystem voltage:12VIgnition type:Key start (this page)
Where do I get constant, ignition and ground on a 2015 Toyota Yaris?
Constant and ignition are on one plug at the key cylinder.
Option 1 Main power
Ignition switch plug
White 8-pin plug on the key cylinder, under the column cover.
White 8-pin ignition switch plug, steering column, pin 8Hot with the key in run. A second ignition is Light Blue on pin 1.
Ground
Body ground
Bare metal under the dashNo ground color printed. Never the battery negative post.
Starter is Green on pin 6. Never tap it.
Option 2 Backup
Fuse tap
For accessory power.
Accessory
Fuse tap
Interior fuse panelNot in the guide. Find a slot that is hot only in accessory and run.
Use an add-a-fuse.
From Fortin's install guide for the 2015 to 2016 Yaris with a key (guide 31311).
Where are the turn signal, reverse and light wires on a 2015 Toyota Yaris 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
Light Blue
White 30-pin plug on the body control module, pin 19Ground when the parking lights are on.
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 2015 to 2016 Yaris with a key (guide 31311).
Where are the brake, door, speed and CAN wires on a 2015 Toyota Yaris for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
CAN dataDataNot yet checked
Gray (high)
White (low)
OBD-II portNever cut or splice the CAN wires.
DoorsNegative -Not yet checked
Blue
White 36-pin plug on the body control moduleDriver door. Ground when the door is open.
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 2015 to 2016 Yaris with a key (guide 31311). Wires marked Not found were not in the guide.
Where are the fuse boxes and ground points on a 2015 Toyota Yaris?
Steering columnIgnition switch plugConstant and ignition.
DashBody control moduleParking light, driver door.
Ground pointsBare body metalNever the battery negative post.
Locations from Fortin's install guides.
Where is the OBD-II port on a 2015 Toyota Yaris?
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 Toyota Yaris?
This page2015Toyota Yaris.
Same power wiring2016, 2017, 2018, 2019Same ignition plug colors. The CAN spot moves in 2017.
Not coveredPush-button and 2014 or olderNot on this page.
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This page covers the 2015 Toyota Yaris small car with a key 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 Yaris.
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 Toyota Yaris wiring
What wire is constant power on a 2015 Toyota Yaris?
Yellow at the white 8-pin ignition switch plug, steering column, pin 4. 12V battery feed. Meter it before you tap it.
What wire is ignition on a 2015 Toyota Yaris?
Pink at the white 8-pin ignition switch plug, steering column, pin 8. Hot with the key in run. 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 2015 Toyota Yaris 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 Toyota Yaris 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.
