Which wires give constant, ignition and ground on a 2021 Honda Passport?
On a 2021 Honda Passport, take constant power from the White wire at the gray 36-pin plug under the driver dash, pin 18, ignition from the Blue wire at the gray 36-pin plug under the driver dash, pin 17, 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:Gray 36-pin plugSystem voltage:12VIgnition type:Push-button (this page)
Where do I get constant, ignition and ground on a 2021 Honda Passport?
Constant, ignition and accessory are on one gray plug under the driver dash.
Option 1 All the power
Gray 36-pin plug
Driver side, under the dash.
Constant
White
Gray 36-pin plug under the driver dash, pin 1812V battery feed.
Ignition
Blue
Gray 36-pin plug under the driver dash, pin 17Hot with the button on. Tap it, never cut it.
Accessory
Brown
Gray 36-pin plug under the driver dash, pin 16Accessory. Tap it, never cut it.
Ground
Body ground
Bare metal under the dashNo ground color printed. Never the battery negative post.
The start button wire is Black on pin 10. Never tap it.
Option 2 Backup
Fuse tap
For switched power.
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 2019 to 2025 Passport with push-button start (guide 97151).
Where are the turn signal, reverse and light wires on a 2021 Honda Passport 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
White
Blue 12-pin plug at the parking light harness, pin 8Ground 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 2019 to 2025 Passport with push-button start (guide 97151).
Where are the brake, door, speed and CAN wires on a 2021 Honda Passport for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
CAN dataDataNot yet checked
White (high)
Tan (low)
Gray 20-pin plug under the driver dash, pins 1 and 11CAN 1. CAN 2 is Light Blue (high) and Gray (low) on pins 2 and 12. Never 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 2019 to 2025 Passport with push-button start (guide 97151). Wires marked Not found were not in the guide.
Where are the fuse boxes and ground points on a 2021 Honda Passport?
Ground pointsBare body metalNever the battery negative post.
Locations from Fortin's install guide.
Where is the OBD-II port on a 2021 Honda Passport?
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 2021 Honda Passport?
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 2021 Honda Passport midsize 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 2021 Passport.
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 2021 Honda Passport wiring
What wire is constant power on a 2021 Honda Passport?
White at the gray 36-pin plug under the driver dash, pin 18. 12V battery feed. Meter it before you tap it.
What wire is ignition on a 2021 Honda Passport?
Blue at the gray 36-pin plug under the driver dash, pin 17. Hot with the button on. Meter it before you tap it.
Which years share wiring with the 2021 Honda Passport?
2019, 2020, 2022, 2023, 2024, 2025. 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 2021 Honda Passport 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 2021 Honda Passport 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.
