Midsize sedan, gas and hybrid. Push-button start on most trims.
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Which wires give constant, ignition and ground on a 2021 Toyota Camry?
On a 2021 Toyota Camry, take constant power from the Purple wire at the steering lock plug, black 7-pin, pin 7, ignition from the Light Green wire at the steering lock plug, black 7-pin, pin 6, and ground to clean, bare body metal. Meter every wire first.
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 truck in front of you.
This page covers the 2021 Toyota Camry, gas and hybrid.
Most trims are push-button; some have a flip key. We found the push-start power wires and CAN; most body signals travel over the data bus. 2021 is carried from iDatalink's 2018 to 2020 chart. Our own team has not yet metered these on a 2021 car, and each row says so.
OBD-II portUnder the driver dash
Best power spotSteering lock plug
System voltage12V
Ignition typePush-button (key on some trims)
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Where do I get constant, ignition and ground on a 2021 Toyota Camry?
Take constant, ignition and ground from the same area.
Option 1 Gas
Steering lock plug (gas)
Under the steering column. Push-button start.
Constant
Purple
Steering lock plug, black 7-pin, pin 7Always hot. Gas push-start cars. iDatalink covers 2018 to 2020; 2021 is carried, and harness makers changed parts for 2023, so meter it.
Ignition
Light Green
Steering lock plug, black 7-pin, pin 6Hot in run. Gas and hybrid.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
The start button wire is Blue on the button black 10-pin, pin 1. Never tap it. Key-start (flip key) ignition colors were not found.
Option 2 Hybrid
Steering lock plug (hybrid)
The same plug on hybrids, with a different constant color.
Constant
White
Steering lock plug, black 7-pin, pin 7Always hot. Hybrid cars.
Ignition
Light Green
Steering lock plug, black 7-pin, pin 6Hot in run.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
The hybrid starter is Light Blue at the hybrid ECU gray 35-pin, pin 9. Never tap it. The hybrid 12V battery is on the right side of the trunk.
Colors from the iDatalink guide for 2018 to 2020 Camrys.
What are the turn signal, reverse and light wires on a 2021 Toyota Camry?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundLights on this Camry run over the data bus in the guides we found.
Right turnNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Park lightPositive +Not yet checked
Lavender/Black
Dash fuse box, white 36-pin plug (3D), pin 30Park lamp output, from a 2019 flip-key install. The switch input is Green or Blue/Black (negative) at the headlight switch white 40-pin, pin 3.
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: the iDatalink guide for 2018 to 2020 Camrys.
Where are the brake, door, speed and CAN wires on a 2021 Toyota Camry?
Circuit
Wire color
Location and what it does
BrakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
DoorsNot foundNot yet checked
Not found
Not foundData bus only in the guides we found.
Lock / unlockPolarity: meter itNot yet checked
Black (lock motor)
Blue (driver unlock motor)
Dash fuse box white 36-pin (3D), pin 18; driver kick black 20-pin, pin 1Reversing motor wires from a 2019 flip-key install. Do not use them as triggers.
Parking brakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
HazardNot 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.
CAN busDataNot yet checked
Tan (high)
White (low)
Body ECU plug K52 (black 30-pin), pins 5 and 4From iDatalink. Never cut or splice them.
Sources: the iDatalink guide for 2018 to 2020 Camrys, a 2019 flip-key install on the12volt and Toyota's 2018 owner's manuals. Turns, lights, doors and most body wires were not found.
Which years share wiring with the 2021 Toyota Camry?
This page2021Carried from 2018 to 2020.
Same wiring2018, 2019, 2020, 2022, 2023 and 2024iDatalink covers 2018 to 2020 gas and 2018 to 2019 hybrid Camrys as one chart. 2021 to 2024 are carried and not confirmed.
Not this page2017 and older, or 2025 and newerWe have not published the 2025 and newer hybrid-only Camry: no wire colors exist yet.
Where are the fuse boxes and ground points on a 2021 Toyota Camry?
InteriorUnder the driver side dashRemove the lid; push the claw to release it.
Under the hoodEngine compartment fuse boxHybrids have a jump starting terminal inside it.
BatteryEngine bay (gas) or trunk (hybrid)The hybrid 12V battery is on the right side of the trunk.
Ground pointsClean body metalNo named ground point found. Never the battery negative post.
Fuse and battery locations from Toyota's owner's manuals. Our team has not yet checked them on a car.
Where is the OBD-II port on a 2021 Toyota Camry?
OBD II
Diagnostic portOBD-II port: under the driver dashPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2021 Toyota Camry wiring
What wire is constant power on a 2021 Toyota Camry?
Purple at the steering lock plug, black 7-pin, pin 7. Always hot. Meter it before you tap it.
What wire is ignition on a 2021 Toyota Camry?
Light Green at the steering lock plug, black 7-pin, pin 6. Hot in run. Meter it before you tap it.
Where is the CAN bus on a 2021 Toyota Camry?
Tan (high) and White (low) at the body ECU plug K52 (black 30-pin), pins 5 and 4. From iDatalink.
Which years share wiring with the 2021 Toyota Camry?
2018, 2019, 2020, 2022, 2023 and 2024. iDatalink covers 2018 to 2020 gas and 2018 to 2019 hybrid Camrys as one chart.
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Had the panels off on one of these? Show the next installer what you found.
No one has sent photos for the 2021 Toyota Camry 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 2021 Toyota Camry gets their name here, and it stays here.
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