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Which wires give constant, ignition and ground on a 2007 Toyota Tundra?
On a 2007 Toyota Tundra, take constant power from the White wire at the ignition switch harness, ignition from the Black wire at the ignition switch harness, 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 2007 Toyota Tundra, the first year of the second generation.
This truck has a standard key. We found no 2007 sheet, so the colors come from the 2008 and 2009 sheets and a 2010 sheet filed for 2007 to 2013. 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 2007 truck.
OBD-II portUnder the driver dash, to the left
Best power spotDash fuse box or ignition switch
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2007 Toyota Tundra?
Take constant, ignition and ground from the same area.
Option 1 Easiest
Ignition switch plug
Steering column. Key start on every year of this group.
Constant
White
Ignition switch harnessBattery feed at the switch, reported on 2008 and 2009 sheets. Thin wire; see the dash fuse box option for a heavier feed.
Ignition
Black
Ignition switch harnessHot in run. Light Green is the second ignition wire; the 2009 sheet swaps which one it calls ignition 1.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. No source named a factory ground bolt.
Accessory
Gray
Ignition switch harnessHot in accessory and run. Reported on 2008 and 2009 sheets.
The starter is Dark Green. Never tap the starter. The 2008 and 2009 sheets give colors but no pin numbers.
Option 2 Dash cam
Dash fuse box
Under the driver side dash. Heavier feed, and fuse taps for a camera.
Constant
Black
Dash fuse box, the large Black wireAlways hot. An installer on the 2008 thread recommends it over the thin switch wires. On 2010 trucks it is the white 1-pin plug, pin 1.
Accessory
Fuse tap
Dash fuse box, ACC 7.5A fuse (#25)Hot in accessory and run. Use an add-a-fuse tap for a dash cam.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. No source named a factory ground bolt.
Fuse number from a transcription of the 2007 to 2013 owner's manual. Check the lid label before you use a slot.
Ignition switch colors from a 2008 Tundra wire sheet on the12volt and a 2009 sheet. They match the pinned 2010 and 2014 sheets.
What are the turn signal, reverse and light wires on a 2007 Toyota Tundra?
Circuit
Wire color
Location and what it does
Left turnPositive +Not yet checked
Green (front)
Pink (rear)
Flasher relay under the driver dash, left of the fuse box, white 18-pin plug, pins 10 and 2Flashes with the left signal. The 2014 sheets say the rear is Black on the same pin, so meter it. From a 2010 Tundra wire sheet on the12volt (filed for 2007 to 2013).
Right turnPositive +Not yet checked
Beige (front)
Blue or Light Blue (rear)
Flasher relay, white 18-pin plug, pins 17 and 8Flashes with the right signal. From a 2010 Tundra wire sheet on the12volt (filed for 2007 to 2013).
Park lightPositive +Not yet checked
Green
Dash fuse box, white 24-pin plug (B or DB), pin 8Park lamp output. Switch side is Beige (negative) at the Body ECU white 26-pin, pin 23.
HeadlightNegative -Not yet checked
White
Headlight switch or Body ECU, white 28-pin plug, pin 17Headlight switch output. Only the 2010 sheet lists it, so meter it.
ReversePositive +Not yet checked
Blue
Passenger kick, white 11-pin plug, pin 3Hot in reverse. The 2014 sheets move it to the white 20-pin, pin 20.
Dome lightNegative -Not yet checked
Blue
Interior light switch on the dash, black 10-pin plug, pin 10Dome light supervision.
Each chip shows the main insulation color with its stripe. Source: a 2010 Tundra wire sheet on the12volt (filed for 2007 to 2013), checked against the 2008 and 2009 sheets.
Where are the brake, door, speed and CAN wires on a 2007 Toyota Tundra?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Beige
Brake switch, blue 4-pin plug, pin 1Hot with the pedal pressed.
DoorsNegative -Not yet checked
Orange (any door)
Courtesy light wire, under the dashGrounds with any door open. From a 2009 sheet. The 2010 sheet lists each door at the Body ECU instead.
Parking brakeNegative -Not yet checked
Beige
Parking brake switch, or dash fuse box white 24-pin plug (B or DB), pin 11Grounds with the parking brake set.
HazardNegative -Not yet checked
Beige
Body ECU on the dash fuse box, white 16-pin plug, pin 4Hazard switch input.
Hood pinNegative -Not yet checked
Purple
Body ECU, white 26-pin plug, pin 16Grounds with the hood open.
SeatbeltNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedAC signalNot yet checked
White
Radio, white 20-pin plug, pin 3Speed signal from the 2010 sheet. Meter it on other years.
TachAC signalNot yet checked
White
OBD port, pin 9Engine speed signal. The pin is the same from 2008 to 2018; only the reported color changes.
CAN busDataNot yet checked
Purple (high)
White (low)
OBD port, pin 6 and pin 14From the 2010 sheet. Never cut or splice them.
Sources: a 2008 Tundra wire sheet on the12volt, a 2009 sheet and a 2010 Tundra wire sheet on the12volt (filed for 2007 to 2013) (all installer-reported). No Toyota wiring diagram was available. Park/neutral and seatbelt were not found.
Which years share wiring with the 2007 Toyota Tundra?
This page2007Carried from the 2008 to 2010 sheets.
Same wiring2008 and 2009Key start, same ignition switch colors on the 2008 and 2009 sheets. Body wires come mostly from the 2010 sheet, which the12volt files for 2007 to 2013.
Not this page2010 and newerPinned wire sheets and a later body layout.
Where are the fuse boxes and ground points on a 2007 Toyota Tundra?
InteriorDriver side, under the dashACC 7.5A (#25), PWR OUTLET 15A (#5). The Body ECU is attached to this box.
Under the hoodEngine bay fuse boxIGN 10A, STOP 15A, TURN-HAZ 15A, DOME 7.5A.
Ground pointsClean body metalNo named ground point found. Use clean, bare body metal, never the battery negative post.
Fuse list from a transcription of Toyota's 2007 to 2013 owner's manual. Check the lid label before you use a slot.
Where is the OBD-II port on a 2007 Toyota Tundra?
OBD II
Diagnostic portOBD-II port: under the driver dash, to the leftPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2007 Toyota Tundra wiring
What wire is constant power on a 2007 Toyota Tundra?
White at the ignition switch harness. Battery feed at the switch, reported on 2008 and 2009 sheets. Meter it before you tap it.
What wire is ignition on a 2007 Toyota Tundra?
Black at the ignition switch harness. Hot in run. Meter it before you tap it.
Where is the reverse wire on a 2007 Toyota Tundra?
Blue (positive +) at the passenger kick, white 11-pin plug, pin 3. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2007 Toyota Tundra?
Beige (positive +) at the brake switch, blue 4-pin plug, pin 1. Hot with the pedal pressed. Meter it before you tap it.
Where is the parking brake wire on a 2007 Toyota Tundra?
Beige (negative -) at the parking brake switch, or dash fuse box white 24-pin plug (B or DB), pin 11. Grounds with the parking brake set. Meter it before you tap it.
Where is the vehicle speed signal on a 2007 Toyota Tundra?
White at the radio, white 20-pin plug, pin 3. Speed signal from the 2010 sheet. Meter it before you tap it.
Which years share wiring with the 2007 Toyota Tundra?
2008 and 2009. Key start, same ignition switch colors on the 2008 and 2009 sheets.
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