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Which wires give constant, ignition and ground on a 2020 Nissan Frontier?
On a 2020 Nissan Frontier, take ignition from the Green wire at the BCM right of the steering column, black 40-pin plug, pin 27, 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 2020 Nissan Frontier, the first year with push-button start and the new V6.
Nissan made push-button start standard for 2020. One vendor still lists a key kit for 2020, so check the truck. The only wire source for these years is iDatalink, so many circuits show Not found. Our own team has not yet metered these on a 2020 truck.
OBD-II portUnder the driver dash, left of the steering column
Best power spotBCM, right of the steering column
System voltage12V
Ignition typePush-button
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Where do I get constant, ignition and ground on a 2020 Nissan Frontier?
Take constant, ignition and ground from the same area.
Option 1 Easiest
BCM, right of the steering column
Push-button start. The BCM plugs changed from 2019: green 40-pin, black 40-pin and gray 24-pin.
Constant
Not found
Not foundNo source gave a constant wire for 2020 or 2021. Meter for it before you tap.
Ignition
Green
BCM right of the steering column, black 40-pin plug, pin 27Hot in run. Blue on a black 24-pin plug, pin 9, is a second ignition wire.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. The BCM ground is Black on terminal 67.
Accessory
White
BCM, black 40-pin plug, pin 26Hot in accessory and run.
The starter output is Light Blue (negative) on the black 40-pin, pin 22. Never tap it. The 2019 and older ignition switch colors do not apply here.
Option 2 Dash cam
Fuse tap
Passenger side, behind the glove box.
Accessory
Fuse tap
Interior fuse box behind the glove box, power socket fuseFor a dash cam. Read the lid label and meter the slot first.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. The BCM ground is Black on terminal 67.
We have no fuse numbers for 2020 or 2021.
Colors from the iDatalink install guide for 2020 to 2021 push-start Frontiers, the only wire source we found for these years.
What are the turn signal, reverse and light wires on a 2020 Nissan Frontier?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundNo 2020 or 2021 source. The BCM changed from 2019, so the older colors are not shown here.
Right turnNot foundNot yet checked
Not found
Not foundNo 2020 or 2021 source. The BCM changed from 2019, so the older colors are not shown here.
Park lightPositive +Not yet checked
White/Red
Trailer brake pre-wire, white 6-pin plug, pin 4, right of the steering columnPark lamp feed. Same plug and pin as older trucks, but the color changed from Red.
HeadlightNot foundNot yet checked
Not found
Not foundNo 2020 or 2021 source. The BCM changed from 2019, so the older colors are not shown here.
ReverseNot foundNot yet checked
Not found
Not foundNo 2020 or 2021 source. The BCM changed from 2019, so the older colors are not shown here.
Dome lightNot foundNot yet checked
Not found
Not foundNo 2020 or 2021 source. The BCM changed from 2019, so the older colors are not shown here.
Each chip shows the main insulation color with its stripe. Source: the iDatalink install guide for 2020 to 2021 push-start Frontiers.
Where are the brake, door, speed and CAN wires on a 2020 Nissan Frontier?
Circuit
Wire color
Location and what it does
BrakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
DoorsNegative -Not yet checked
Gray (driver)
BCM, gray 24-pin plug, pin 16Grounds when the driver door is open. Other doors not found.
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.
Park / neutralNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
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.
TachNot foundNot yet checked
Not found
Not found2020 moved to a direct-injection V6. No source confirms the old injector tach method on it.
CAN busDataNot yet checked
Blue (high)
Pink (low)
BCM, black 40-pin plug, pins 20 and 19Never cut or splice them.
Sources: the iDatalink install guide for 2020 to 2021 push-start Frontiers. Nissan's 2020 release confirms push-button start became standard. Most circuits were not found for these years.
Which years share wiring with the 2020 Nissan Frontier?
This page2020iDatalink push-start guide for 2020 to 2021.
Same wiring2021Both years use the push-button BCM layout from the iDatalink guide.
Not this page2019 and olderKey start with different ignition and BCM wiring.
Where are the fuse boxes and ground points on a 2020 Nissan Frontier?
InteriorPassenger side, behind the glove boxWe have no fuse numbers for this year. Read the lid label.
Under the hoodEngine bay, by the batteryThe IPDM box. Sources disagree on which side, so check both.
Ground pointsClean body metalNissan names body grounds M57 and M61, but no source gives where they are. Use clean, bare body metal, never the battery negative post.
Locations from fuse guides. We found fuse numbers only for 2005 to 2014.
Where is the OBD-II port on a 2020 Nissan Frontier?
OBD II
Diagnostic portOBD-II port: under the driver dash, left of the steering columnPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2020 Nissan Frontier wiring
What wire is ignition on a 2020 Nissan Frontier?
Green at the BCM right of the steering column, black 40-pin plug, pin 27. Hot in run. Meter it before you tap it.
Where is the CAN bus on a 2020 Nissan Frontier?
Blue (high) and Pink (low) at the BCM, black 40-pin plug, pins 20 and 19. Never cut or splice them.
Which years share wiring with the 2020 Nissan Frontier?
2021. Both years use the push-button BCM layout from the iDatalink guide.
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