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Wiring Database / Chevrolet / Impala / 2019

2019 Chevrolet Impala

Full-size sedan. Push-button start.

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Which wires give constant, ignition and ground on a 2019 Chevrolet Impala?

On a 2019 Chevrolet Impala, take constant power from the Red/Purple wire at the BCM above the driver kick panel, blue 27-pin plug, pin 4, ignition from the Purple wire at the BCM, green 25-pin plug, 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 2019 Chevrolet Impala.

This year is push-button start only. The only wire sheet we found is for a keyed 2015 car, so the colors are carried to 2019. Meter the ignition and accessory pins before you trust them. Our own team has not yet metered these on this car.

OBD-II portLocation not confirmed
Best power spotBCM above the driver kick panel
System voltage12V
Ignition typePush-button

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Where do I get constant, ignition and ground on a 2019 Chevrolet Impala?

Take constant, ignition and ground from the same area.

Option 1 Easiest

BCM above the driver kick panel

Constant, ignition and accessory are on two plugs of the same module.

Constant
Red/Purple
BCM above the driver kick panel, blue 27-pin plug, pin 4Always hot, 30A.
Ignition
Purple
BCM, green 25-pin plug, pin 6Hot in run on a keyed car. This year is push-button only and no push-button sheet was found, so meter this pin before you trust it.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post. No source named a factory ground point under the dash.
Accessory
Yellow
BCM, green 25-pin plug, pin 5Hot in accessory and run on a keyed car.
The starter is Yellow at the underhood fuse box, black 50-pin plug (X3), pin 5. Never tap the starter.
Option 2 Dash cam

Radio plug

Behind the radio. Constant and ground only.

Constant
Red/Purple
Radio, gray 20-pin plug, pin 1Radio constant. A 2014 post and the 2015 sheet agree.
Ignition
None
Not at this plugThe radio is switched on over the data line, so there is no ignition wire here.
Ground
Black
Radio, gray 20-pin plug, pin 11Radio ground.
For switched power on a dash cam, use a fuse tap instead: see the fuse section below.

Colors from a 2015 Impala wire sheet on the12volt (Directed data), carried to 2019.

What are the turn signal, reverse and light wires on a 2019 Chevrolet Impala?

Circuit
Wire color
Location and what it does
Left turnPositive +Not yet checked
Blue/White (front)
Yellow/Blue (rear)
BCM above the driver kick panel, brown 26-pin plug, pins 2 and 1Flashes with the left signal. From the 2015 sheet, carried to 2019.
Right turnPositive +Not yet checked
Green/Purple (front)
Brown/Green (rear)
BCM, black 26-pin plug, pins 3 and 4Flashes with the right signal. From the 2015 sheet, carried to 2019.
Park lightPositive +Not yet checked
Purple/Gray (left)
Gray/Brown (right)
BCM: black 26-pin plug, pin 7 (left); brown 26-pin plug, pin 7 (right)Park lamp outputs. The switch side is Green/Gray (negative) on the white 26-pin plug, pin 22. From the 2015 sheet, carried to 2019.
HeadlightNegative -Not yet checked
White/Purple
BCM, white 26-pin plug, pin 16Headlight switch input. From the 2015 sheet, carried to 2019.
ReversePositive +Not yet checked
Green/White
BCM, gray 26-pin plug, pin 2Hot in reverse. The hazard wire is the same color on another plug, so go by pin. From the 2015 sheet, carried to 2019.
Dome lightPositive +Not yet checked
Gray
BCM, gray 26-pin plug, pin 1Dome light supervision. From the 2015 sheet, carried to 2019.

Each chip shows the main insulation color with its stripe. Source: a 2015 Impala wire sheet on the12volt (Directed data).

Where are the brake, door, speed and CAN wires on a 2019 Chevrolet Impala?

Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Purple/White
BCM above the driver kick panel, black 26-pin plug, pin 11Hot with the pedal pressed. From the 2015 sheet, carried to 2019.
DoorsNegative -Not yet checked
Gray (each door)
At each door: driver window motor black 7-pin plug, pin 6; passenger window switch black 8-pin, pin 6; rear window switches black 8-pin, pin 2Each grounds when its door is open. There is one Gray wire per door, at the door itself. From the 2015 sheet, carried to 2019.
Parking brakeNot foundNot yet checked
Not found
Not foundThis car has an electric parking brake. The sheet lists no switch wire.
HazardNegative -Not yet checked
Green/White
BCM, blue 27-pin plug, pin 26Hazard switch input. From the 2015 sheet, carried to 2019.
Lock / unlockNegative -Not yet checked
Brown/Yellow (lock)
Brown/White (unlock)
BCM, gray 26-pin plug, pins 25 and 14Lock and unlock inputs. From the 2015 sheet, carried to 2019.
TrunkNegative -Not yet checked
Purple/Gray
BCM, pink 27-pin plug, pin 5Grounds with the trunk open. From the 2015 sheet, carried to 2019.
SeatbeltNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedNot foundNot yet checked
Not found
Not foundThe sheet lists no speed wire and points to the wheel speed sensors. Use the CAN bus for speed.
TachAC signalNot yet checked
Brown
Dark Blue
Light Green
Gray/Dark Blue
Black 12-pin plug at the rear of the engine, pins 1 to 4 (2.5L, passenger side)Injector signals. On the 3.6L V6 the plug is on the driver side and the wires are Dark Blue, Gray/Dark Blue or Purple/Light Green. From the 2015 sheet, carried to 2019.
CAN busDataNot yet checked
Dark Blue (high)
White (low)
OBD port, or BCM blue 27-pin plug, pins 24 and 23High speed GMLAN. Low speed GMLAN is Light Green on pin 22. Never cut or splice them. From the 2015 sheet, carried to 2019.

Source: a 2015 Impala wire sheet on the12volt (Directed data). It is the only wire sheet we found for this body, and it describes a keyed car. Parking brake, seatbelt and a speed wire were not found.

Which years share wiring with the 2019 Chevrolet Impala?

This page2019Carried from the 2015 sheet.
Same wiring2014, 2015, 2016, 2017, 2018 and 2020One wire sheet, for a 2015 car. A 2014 post matches it on the radio constant. 2016 to 2020 are carried, and 2018 to 2020 are push-button only.
Not this pageImpala Limited or 2013 and olderThe older body. Its wiring is completely different.

Where are the fuse boxes and ground points on a 2019 Chevrolet Impala?

InteriorDriver side of the dash, left of the steering wheelBehind the storage pocket cover. Power outlet fuses 6 and 7 (20A).
Under the hoodLeft side of the engine bayThe starter wire runs to this box.
BatteryLocation not foundCars with the 2.5L stop/start engine also have a small auxiliary battery in the left rear of the trunk. GM says not to use it for anything else. Ground to clean body metal.

Fuse box locations and fuse numbers from fuse guides for 2014 to 2020. Check the lid label before you use a slot.

Where is the OBD-II port on a 2019 Chevrolet Impala?

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 2019 Chevrolet Impala wiring

What wire is constant power on a 2019 Chevrolet Impala?

Red/Purple at the BCM above the driver kick panel, blue 27-pin plug, pin 4. Always hot, 30A. Meter it before you tap it.

What wire is ignition on a 2019 Chevrolet Impala?

Purple at the BCM, green 25-pin plug, pin 6. Hot in run on a keyed car. Meter it before you tap it.

Where is the reverse wire on a 2019 Chevrolet Impala?

Green/White (positive +) at the BCM, gray 26-pin plug, pin 2. Hot in reverse. Meter it before you tap it.

Where is the brake wire on a 2019 Chevrolet Impala?

Purple/White (positive +) at the BCM above the driver kick panel, black 26-pin plug, pin 11. Hot with the pedal pressed. Meter it before you tap it.

Where is the CAN bus on a 2019 Chevrolet Impala?

Dark Blue (high) and White (low) at the OBD port, or BCM blue 27-pin plug, pins 24 and 23. High speed GMLAN.

Which years share wiring with the 2019 Chevrolet Impala?

2014, 2015, 2016, 2017, 2018 and 2020. One wire sheet, for a 2015 car.

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