Which wires give constant, ignition and ground on a 2023 Toyota Highlander?
On a 2023 Toyota Highlander, take constant power from the Black wire at the smart key module behind the glove box, 27-pin plug, ignition from the Yellow wire at the smart key module behind the glove box, 27-pin plug, and ground to the White/Black wire at the smart key module behind the glove box, 27-pin plug. 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:Smart key module plugSystem voltage:12VIgnition type:Push-button
Where do I get constant, ignition and ground on a 2023 Toyota Highlander?
All four power wires are on one plug at the smart key module behind the glove box.
Smart key module behind the glove box, 27-pin plugHot with the button in on.
Accessory
Gray
Smart key module behind the glove box, 27-pin plugAccessory.
Ground
White/Black
Smart key module behind the glove box, 27-pin plugGround.
Starter is Pink on the 21-pin plug next to it. Never tap it.
Option 2 Backup
Fuse tap
If you would rather not open the glove box area.
Ignition
Fuse tap
Interior fuse panelBackup: a slot that is dead off and hot on.
Use an add-a-fuse.
From Fortin's install guides for the 2022 to 2023 Highlander (guide 112201, push-button).
Where are the turn signal, reverse and light wires on a 2023 Toyota Highlander 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 lightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
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 2022 to 2023 Highlander (guide 112201, push-button).
Where are the brake, door, speed and CAN wires on a 2023 Toyota Highlander for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
CAN dataDataNot yet checked
Green (high)
White (low)
Smart key module behind the glove box, 27-pin plugNever cut or splice the CAN wires.
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 guides for the 2022 to 2023 Highlander (guide 112201, push-button). Turn, headlight, reverse, dome, brake and speed wires were not found.
Where are the fuse boxes and ground points on a 2023 Toyota Highlander?
Steering columnIgnition or steering lock plugPower on 2014 to 2021 trucks.
Behind the glove boxSmart key module and body ECUPower on 2022 and newer.
Ground pointsBare body metalNever the battery negative post.
Locations from Fortin's install guides.
Where is the OBD-II port on a 2023 Toyota Highlander?
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 2023 Toyota Highlander?
This page2023Toyota Highlander, gas.
Same wiring2022Fortin uses the same guide 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 2023 Toyota Highlander SUV (gas). Hybrid models use different Fortin guides and are not covered here.
The wire colors come from Fortin's install guides, read wire by wire. Our own team has not yet metered these on a 2023 Highlander.
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 2023 Toyota Highlander wiring
What wire is constant power on a 2023 Toyota Highlander?
Black at the smart key module behind the glove box, 27-pin plug. 12V battery feed. Meter it before you tap it.
What wire is ignition on a 2023 Toyota Highlander?
Yellow at the smart key module behind the glove box, 27-pin plug. Hot with the button in on. Meter it before you tap it.
Which years share wiring with the 2023 Toyota Highlander?
2022. 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 2023 Toyota Highlander 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.
★
Founding contributor spot: openThe first installer to confirm a wire or send photos for the 2023 Toyota Highlander gets their name here, and it stays here.
★
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.
