Compact SUV, gas and Hybrid. Key or push-button start.
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Which wires give constant, ignition and ground on a 2018 Toyota RAV4?
On a 2018 Toyota RAV4, take constant power from the White wire at the ignition switch (key cars), white 8-pin plug, pin 4, ignition from the White wire at the ignition switch, white 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 2018 Toyota RAV4, the last year of this body.
The RAV4 came with a key or push-button start; the Hybrid is push-button only. Key cars take power at the ignition switch plug; push-button cars at the steering lock plug. The 2016 refresh moved the CAN tap off the OBD port. Body wires come from a list that covers 2013 to 2016, carried to 2018. Our own team has not yet metered these on a 2018 vehicle.
OBD-II portLocation not confirmed
Best power spotIgnition switch plug or steering lock plug
System voltage12V
Ignition typeKey or push-button
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Where do I get constant, ignition and ground on a 2018 Toyota RAV4?
Take constant, ignition and ground from the same area.
Option 1 Key cars
Ignition switch plug
Key cars. Steering column, white 8-pin plug.
Constant
White
Ignition switch (key cars), white 8-pin plug, pin 4Always hot.
Ignition
White
Ignition switch, white 8-pin plug, pin 3Hot in run (IG1). A second ignition wire, Pink, is on pin 8.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
Accessory
Red
Ignition switch, white 8-pin plug, pin 7Hot in accessory and run.
Three wires in this plug are White (pins 2, 3 and 4), so go by pin, not color. Pin 2 is the starter. Never tap the starter.
Option 2 Push-button
Steering lock plug
Push-button cars. On the steering column, black 7-pin plug.
Constant
Blue
Steering lock plug, black 7-pin, pin 7Always hot.
Ignition
Pink
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.
From the iDatalink guide for push-button cars. Fortin calls this same plug white, so go by the 7 pins and the location. The 2016 to 2018 Hybrid is different: iDatalink lists constant Blue at OBD pin 16 and ignition Yellow at the dash fuse box white 56-pin plug, pin 14.
Key-car colors from the iDatalink install guides for 2016 to 2018, Directed and the12volt lists, which agree. Push-button colors from iDatalink. The main battery feed is a White wire on the dash fuse box white 1-pin plug; it is a heavy feed, so do not tap it for a small device.
What are the turn signal, reverse and light wires on a 2018 Toyota RAV4?
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 lightPositive +Not yet checked
Green
Dash fuse box, white 40-pin plug (3E), pin 38Hot with the park lights on. A negative trigger, White, is at the headlight switch black 20-pin plug, pin 18, or on push-button cars at the main body ECU white 30-pin plug, pin 30. The list covers 2013 to 2016; an installer who used it on a 2018 says he believes these wires are the same.
HeadlightNot foundNot yet checked
Not found
Not foundA 2015 list has this wire (see the 2015 page), but the 2016 refresh changed some wiring and no source confirms it for this year.
ReverseNot foundNot yet checked
Not found
Not foundA 2015 list has this wire (see the 2015 page), but the 2016 refresh changed some wiring and no source confirms it for this year.
Dome lightPolarity: meter itNot yet checked
Gray
Dash fuse box, white 56-pin plug (3D), pin 35Dome light supervision. The list marks it negative for key cars and positive for push-button cars, so meter it. The list covers 2013 to 2016; an installer who used it on a 2018 says he believes these wires are the same.
Each chip shows the main insulation color with its stripe. Source: a 2013 to 2016 RAV4 wire list on the12volt.
Where are the brake, door, speed and CAN wires on a 2018 Toyota RAV4?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Blue
Dash fuse box, white 56-pin plug (3B), pin 18Hot with the pedal pressed. The list says Blue from 2016 and White on earlier years. The list covers 2013 to 2016; carried to this year.
DoorsNegative -Not yet checked
White (driver)
Dash fuse box, white 40-pin plug (3E), pin 40Grounds with the driver door open. The other doors are only on a 2015 list and are not carried past the 2016 refresh. The list covers 2013 to 2016; carried to this year.
LiftgateNot foundNot yet checked
Not found
Not foundA 2015 list has this wire (see the 2015 page), but the 2016 refresh changed some wiring and no source confirms it for this year.
Parking brakeNot foundNot yet checked
Not found
Not foundA 2015 list has this wire (see the 2015 page), but the 2016 refresh changed some wiring and no source confirms it for this year.
HazardNot foundNot yet checked
Not found
Not foundA 2015 list has this wire (see the 2015 page), but the 2016 refresh changed some wiring and no source confirms it for this year.
SeatbeltNot 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.
TachAC signalNot yet checked
Gray
OBD port, white 16-pin plug, pin 9Engine speed signal. The list covers 2013 to 2016; carried to this year.
CAN busDataNot yet checked
Pink (high, key cars)
Green (high, push-button and Hybrid)
White (low)
Key cars: clock spring plug under the steering wheel, black 5-pin, pins 3 and 2. Push-button and Hybrid: main body ECU at the bottom of the dash fuse box, white 30-pin plug, pins 14 and 13The CAN tap moved off the OBD port for 2016. Directed still lists Black and White at OBD pins 6 and 14 for 2016 and 2017 key cars, but that read was not clean. Never cut or splice them.
Sources: a 2013 to 2016 RAV4 wire list on the12volt and the iDatalink guides for 2016 to 2018. Wires that appear only on a 2015 list are not shown, because the 2016 refresh changed some wiring. Turn signals, seatbelt and speed were not found.
Which years share wiring with the 2018 Toyota RAV4?
This page2018Maker guides cover this year; body wires carried from 2016.
Same wiring2016 and 2017iDatalink lists 2016 to 2018 as one install for key, push-button and Hybrid. Body wires come from a list that covers 2013 to 2016.
Not this page2015 and older or 2019 and newerBefore the refresh, or the next body with different plugs and colors.
Where are the fuse boxes and ground points on a 2018 Toyota RAV4?
InteriorUnder the dash, left sideP/OUTLET NO.1 fuse 9 (15A), ACC fuse 19 (7.5A), OBD fuse 5 (7.5A). The main body ECU sits on the bottom of this fuse box.
Under the hoodTwo boxes in the engine bayMain fuse and relay box on the left side, relay box on the right side. DOME (10A) and RADIO (20A) are here.
Ground pointsClean body metalNo named ground point was found. Never use the battery negative post.
Fuse list from a fuse guide for 2013 to 2018. It does not say which fuses switch with the key, so meter the slot and read the lid label.
Where is the OBD-II port on a 2018 Toyota RAV4?
OBD II
Diagnostic portOBD-II port: location not confirmedLook under the driver side dash first, and send us a photo if you find it.
Common questions about 2018 Toyota RAV4 wiring
What wire is constant power on a 2018 Toyota RAV4?
White at the ignition switch (key cars), white 8-pin plug, pin 4. Always hot. Meter it before you tap it.
What wire is ignition on a 2018 Toyota RAV4?
White at the ignition switch, white 8-pin plug, pin 3. Hot in run (IG1). Meter it before you tap it.
Where is the brake wire on a 2018 Toyota RAV4?
Blue (positive +) at the dash fuse box, white 56-pin plug (3B), pin 18. Hot with the pedal pressed. Meter it before you tap it.
Where is the CAN bus on a 2018 Toyota RAV4?
Pink (high, key cars) and Green (high, push-button and Hybrid) and White (low) at the key cars: clock spring plug under the steering wheel, black 5-pin, pins 3 and 2. Push-button and Hybrid: main body ECU at the bottom of the dash fuse box, white 30-pin plug, pins 14 and 13. The CAN tap moved off the OBD port for 2016.
Which years share wiring with the 2018 Toyota RAV4?
2016 and 2017. iDatalink lists 2016 to 2018 as one install for key, push-button and Hybrid.
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