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Which wires give constant, ignition and ground on a 2023 Toyota Tacoma?
On a 2023 Toyota Tacoma, take constant power from the Red wire at the ignition switch, 8-pin plug, pin 4, ignition from the Black wire at the ignition switch, 8-pin plug, pin 3, 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 2023 Toyota Tacoma, the last year of this body.
This body came with a key or with push-button start, depending on trim. Key-start colors come from iDatalink; push-start and body colors come from a 2016 sheet, carried to 2023. No Toyota wiring diagram was available to us, so every color here is installer-reported. Our own team has not yet metered these on a 2023 truck, and each row says so.
OBD-II portUnder the driver dash
Best power spotIgnition switch or certification ECU
System voltage12V
Ignition typeKey or push-button
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Where do I get constant, ignition and ground on a 2023 Toyota Tacoma?
Take constant, ignition and ground from the same area.
Option 1 Key start
Ignition switch (key start)
Steering column, 8-pin plug. Trucks with a key.
Constant
Red
Ignition switch, 8-pin plug, pin 4Always hot. Key-start trucks. From the iDatalink install guide for 2016 to 2021 key-start Tacomas.
Ignition
Black
Ignition switch, 8-pin plug, pin 3Hot in run. A second ignition is White on pin 8.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
The starter is Green on pin 2 (Purple on pin 6 is the second starter). iDatalink lists no accessory wire. Never tap the starter.
Option 2 Push-button
Certification ECU (push start)
Driver side, right of the dash fuse box. Trucks with the smart key.
Constant
Black
Dash fuse box, white 1-pin plug (1L), pin 1Always hot, 50A. Push-start trucks. From a 2016 Tacoma push-start wire sheet on the12volt.
Ignition
Black
Certification ECU, right of the dash fuse box, white 16-pin plug, pin 3Hot in run. Accessory is Red on the black 24-pin plug, pin 9.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
The push-start starter is Purple on the white 16-pin, pin 10. We found only a 2016 push-start sheet, so on later years meter these first.
Key-start colors from the iDatalink install guide for 2016 to 2021 key-start Tacomas. Push-start colors from a 2016 Tacoma push-start wire sheet on the12volt. Check which ignition your truck has before you start.
What are the turn signal, reverse and light wires on a 2023 Toyota Tacoma?
Circuit
Wire color
Location and what it does
Left turnPositive +Not yet checked
Beige (front)
Yellow (rear)
Driver kick, black 18-pin plug, pin 18 front; dash fuse box white 32-pin (1F), pin 6 rearFlashes with the left signal. From a 2016 Tacoma push-start wire sheet on the12volt.
Right turnPositive +Not yet checked
Light Blue (front)
Light Blue (rear)
Passenger kick, white 13-pin plug, pin 13 front; dash fuse box 1F, pin 7 rearFlashes with the right signal.
Park lightPositive +Not yet checked
Green
Dash fuse box white 32-pin (1F), pin 3Park lamp output. The switch input is also Green (negative) at the Body ECU white 30-pin, pin 22; iDatalink confirms that one through 2021.
HeadlightNegative -Not yet checked
Yellow
Body ECU, white 30-pin plug, pin 12Headlight switch input. Auto lights are White on pin 8.
ReversePositive +Not yet checked
Red
Driver kick, white 18-pin plug, pin 5Hot in reverse. Also Red at the engine bay EB1 plug near the battery.
Each chip shows the main insulation color with its stripe. Source: a 2016 Tacoma push-start wire sheet on the12volt.
Where are the brake, door, speed and CAN wires on a 2023 Toyota Tacoma?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Blue
Brake switch, white 4-pin plug, pin 1Hot with the pedal pressed. The sheet says Blue or Light Blue.
DoorsNegative -Not yet checked
Yellow (driver)
Light Green (passenger)
Pink (left rear)
Purple (right rear)
Body ECU white 30-pin, pins 6 and 27; dash fuse box 1H pin 36 and 1D pin 30Each grounds when its door is open. iDatalink confirms the driver door through 2021.
Parking brakeNegative -Not yet checked
White
Dash fuse box rear, white 32-pin (1D), pin 21Grounds with the parking brake set.
HazardNegative -Not yet checked
Yellow
A/C control, black 16-pin plug, pin 4Hazard switch input.
Lock / unlockNegative -Not yet checked
Red or Pink (lock)
Yellow (unlock)
Driver kick, white 13-pin plug, pins 9 and 10Lock and unlock inputs.
SeatbeltNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedAC signalNot yet checked
Purple
Radio, white 28-pin plug, pin 17Speed signal.
TachAC signalNot yet checked
Beige
OBD port, pin 9Engine speed signal.
CAN busDataNot yet checked
Black (high)
White (low)
Body ECU next to the dash fuse box, pins 14 and 13iDatalink moves the CAN tap to the Body ECU from 2018. Never cut or splice them.
Sources: the iDatalink install guide for 2016 to 2021 key-start Tacomas and a 2016 Tacoma push-start wire sheet on the12volt (installer-reported). No Toyota wiring diagram was available. Park/neutral and seatbelt were not found.
Which years share wiring with the 2023 Toyota Tacoma?
This page2023Carried: iDatalink fragments for 2020 to 2021; nothing newer.
Same wiring2016, 2017, 2018, 2019, 2020, 2021 and 2022iDatalink lists the same key-start wires for 2016 to 2019, and parts of its 2021 guide match. 2022 and 2023 are carried. The body wires come from one 2016 sheet.
Where are the fuse boxes and ground points on a 2023 Toyota Tacoma?
InteriorDriver side, under the dashThe Body ECU and certification ECU sit beside it.
Engine bayEB1 plug near the batteryA black 12-pin plug carrying brake, turn, tail and reverse to the rear lamps.
Ground pointsClean body metalNo named ground point found. Use clean, bare body metal, never the battery negative post.
Locations from installer sheets and iDatalink. Our team has not yet checked them on a truck.
Where is the OBD-II port on a 2023 Toyota Tacoma?
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 2023 Toyota Tacoma wiring
What wire is constant power on a 2023 Toyota Tacoma?
Red at the ignition switch, 8-pin plug, pin 4. Always hot. Meter it before you tap it.
What wire is ignition on a 2023 Toyota Tacoma?
Black at the ignition switch, 8-pin plug, pin 3. Hot in run. Meter it before you tap it.
Where is the reverse wire on a 2023 Toyota Tacoma?
Red (positive +) at the driver kick, white 18-pin plug, pin 5. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2023 Toyota Tacoma?
Blue (positive +) at the brake switch, white 4-pin plug, pin 1. Hot with the pedal pressed. Meter it before you tap it.
Where is the parking brake wire on a 2023 Toyota Tacoma?
White (negative -) at the dash fuse box rear, white 32-pin (1D), pin 21. Grounds with the parking brake set. Meter it before you tap it.
Where is the vehicle speed signal on a 2023 Toyota Tacoma?
Purple at the radio, white 28-pin plug, pin 17. Speed signal. Meter it before you tap it.
Which years share wiring with the 2023 Toyota Tacoma?
2016, 2017, 2018, 2019, 2020, 2021 and 2022. iDatalink lists the same key-start wires for 2016 to 2019, and parts of its 2021 guide match.
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