Full-size fleet and police sedan, older body. Key start.
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Which wires give constant, ignition and ground on a 2015 Chevrolet Impala Limited?
On a 2015 Chevrolet Impala Limited, take constant power from the Red/White wire at the ignition switch harness, ignition from the Pink wire at the ignition switch harness, 6-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 2015 Chevrolet Impala Limited, the older body that GM kept selling to fleets and police.
This car has a standard key. No wire sheet names the Limited, so the colors are carried from the 2009 to 2013 Impala, which an installer reports is the same car. GM's police upfit guide for this year adds the loose leads it provides on police package cars. Our own team has not yet metered these on this car.
OBD-II portLocation not confirmed
Best power spotIgnition switch harness
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2015 Chevrolet Impala Limited?
Take constant, ignition and ground from the same area.
Option 1 Easiest
Ignition switch harness
Steering column. Key start on every year of this body.
Constant
Red/White
Ignition switch harnessAlways hot.
Ignition
Pink
Ignition switch harness, 6-pin plug, pin 3Hot in run.
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
Brown
Ignition switch harness, 6-pin plug, pin 4Hot in accessory and run.
There is no starter wire at the ignition switch on this car. The White wire in this plug is immobilizer data: leave it alone.
Option 2 More wires
BCM under the driver dash
Left of the steering column.
Constant
Red/White
BCM left of the steering column, black 25-pin plug, pins 1 to 4Always hot. Four Red/White wires, 10A or 15A each.
Ignition
Pink
BCM, light green plug, pin 14Hot in run.
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
Brown
BCM, light green plug, pin 21Hot in accessory and run.
BCM plug and pin numbers from the 2009 to 2013 sheet. An installer reports the Limited is the same car, but no sheet names it, so meter first.
Colors from a 2009 to 2013 Impala wire sheet on the12volt, carried to the Limited. GM's police upfit guides for the 2015 and 2016 Impala Limited confirm Pink as ignition and list a Yellow accessory lead on police cars.
What are the turn signal, reverse and light wires on a 2015 Chevrolet Impala Limited?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundThe 2009 to 2013 sheet does not list turn signals. The 2006 colors are on the 2006 page.
Right turnNot foundNot yet checked
Not found
Not foundThe 2009 to 2013 sheet does not list turn signals.
Park lightNegative -Not yet checked
Brown/White
BCM left of the steering column, white plug, pin 8Park light switch wire, grounds with the lights on. The same wire is on the 2006 and 2007 sheets. Carried from the 2009 to 2013 sheet.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
ReverseNot foundNot yet checked
Not found
Not foundNot on the 2009 to 2013 sheet. On 2006 and 2007 cars it is Light Green at the BCM pink plug, pin 2, so meter that pin.
Dome lightPositive +Not yet checked
Gray/Black
Driver kick panel, or BCM pink plug, pin 1Dome light supervision. Carried from the 2009 to 2013 sheet.
Each chip shows the main insulation color with its stripe. Source: a 2009 to 2013 Impala wire sheet on the12volt, carried to the Limited.
Where are the brake, door, speed and CAN wires on a 2015 Chevrolet Impala Limited?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
Light Blue
BCM left of the steering column, brown plug, pin 5Hot with the pedal pressed. Carried from the 2009 to 2013 sheet.
DoorsNegative -Not yet checked
Tan
BCM, gray plug, pin 23One wire for all doors; grounds with any door open. Carried from the 2009 to 2013 sheet.
Park signalPolarity: meter itNot yet checked
Yellow/Black (police lead)
Police cars: a loose 20-gauge lead in the coil of wires under the dash, passenger sideFrom GM's 2015 police guide: 0 volts in Park and 12 volts in any other gear. Police package cars only.
Parking brakeNot foundNot yet checked
Not found
Not foundNot on the 2009 to 2013 sheet. On 2006 and 2007 cars it is Orange/Black at the BCM pink plug, pin 22, so meter that pin.
HazardNot foundNot yet checked
Not found
Not foundNot on the 2009 to 2013 sheet.
Lock / unlockNegative -Not yet checked
Pink/Black (lock)
Orange/Black (unlock)
BCM, gray plug, pins 12 and 11Lock and unlock inputs. Carried from the 2009 to 2013 sheet.
Trunk releaseNegative -Not yet checked
Light Blue
BCM, white plug, pin 10Grounds to release the trunk. Carried from the 2009 to 2013 sheet.
SeatbeltNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Vehicle speedAC signalNot yet checked
Brown (police lead)
Police cars: a loose 22-gauge lead in the coil of wires under the dash, passenger sideGM's 2015 police guide: 4,000 pulses per mile from the ABS module, for a high-impedance load only. Other cars: a 2012 owner found Yellow at the transmission control unit.
TachAC signalNot yet checked
Any uncommon wire at one injector
Fuel injectors in the engine bayUse the wire that differs from injector to injector, not the shared feed.
CAN busNot foundNot yet checked
Not found
Not foundNo source gave the data wire colors or pins for this car.
Sources: a 2009 to 2013 Impala wire sheet on the12volt, carried to the Limited, and GM's police upfit guides for the 2015 and 2016 Impala Limited (GM documents) for the police leads. Turn signals, headlight, reverse, hazard, parking brake, seatbelt and the data bus wires were not found.
Which years share wiring with the 2015 Chevrolet Impala Limited?
This page2015 LimitedCarried from 2009 to 2013, plus GM police guide leads.
Same wiring2014 and 2016An installer reports the Limited is the same car as the 2012 and 2013 Impala. No wire sheet names the Limited itself.
Not this page2015 Impala (new body)A different car with different wiring, sold in the same years.
Where are the fuse boxes and ground points on a 2015 Chevrolet Impala Limited?
InteriorFront passenger footwell, behind a coverAuxiliary outlets fuse F7 (20A), retained accessory power F3 (10A).
Under the hoodRight side of the engine bayAuxiliary power fuse (25A) and BCM fuse (10A).
Ground pointsTrunk ground stud (police cars)A 10 mm stud on the passenger side of the trunk, above the auxiliary power block. Under the dash, use clean body metal.
Fuse list from fuse guides for 2006 to 2013, carried to the Limited. GM's police guide says the two dash power outlets are hot at all times.
Where is the OBD-II port on a 2015 Chevrolet Impala Limited?
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 2015 Chevrolet Impala Limited wiring
What wire is constant power on a 2015 Chevrolet Impala Limited?
Red/White at the ignition switch harness. Always hot. Meter it before you tap it.
What wire is ignition on a 2015 Chevrolet Impala Limited?
Pink at the ignition switch harness, 6-pin plug, pin 3. Hot in run. Meter it before you tap it.
Where is the brake wire on a 2015 Chevrolet Impala Limited?
Light Blue (positive +) at the BCM left of the steering column, brown plug, pin 5. Hot with the pedal pressed. Meter it before you tap it.
Where is the vehicle speed signal on a 2015 Chevrolet Impala Limited?
Brown (police lead) at the police cars: a loose 22-gauge lead in the coil of wires under the dash, passenger side. GM's 2015 police guide: 4,000 pulses per mile from the ABS module, for a high-impedance load only. Meter it before you tap it.
Which years share wiring with the 2015 Chevrolet Impala Limited?
2014 and 2016. An installer reports the Limited is the same car as the 2012 and 2013 Impala.
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