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Which wires give constant, ignition and ground on a 2017 Chevrolet Colorado / GMC Canyon?
On a 2017 Chevrolet Colorado / GMC Canyon, take constant power from the Red/Violet wire at the BCM blue 27-pin, pin 4, ignition from the Violet/Black wire at the BCM green 25-pin, 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 2017 Chevrolet Colorado and GMC Canyon. The Colorado and Canyon share the same wiring.
The colors on this page come from the 2016 sheet (a follow-up says 2017 is essentially identical) and the iDatalink 2017 guide, matched to the other sources for this generation. Our own team has not yet metered these on a 2017 truck, and each row says so.
OBD-II portUnder the driver dash
Best power spotBCM, left of the column
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2017 Chevrolet Colorado / GMC Canyon?
Take constant, ignition and ground from the same area. On 2015 to 2022 trucks the body control module (BCM) under the driver dash has constant, ignition and accessory.
Option 1 Easiest
At the BCM
Body control module under the driver dash, left of the steering column.
Constant
Red/Violet
BCM blue 27-pin, pin 4Always hot, 30A. 2016 and 2019 sheets agree.
Ignition
Violet/Black
BCM green 25-pin, pin 6Hot in run and start. iDatalink (2017 to 2021).
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
Accessory
Violet/Yellow
BCM green 25-pin, pin 5Hot in accessory and run.
A retained accessory wire (Violet) is at the passenger kick black 48-pin, pin 26 (2016 sheet).
Option 2 Ignition switch
Ignition switch, black 6-pin
Steering column. Key start.
Constant
Red/Light Blue
Ignition switch black 6-pin, pin 2Always hot but only about 2A. Take real power from the BCM.
Ignition
Violet/Black
Ignition switch black 6-pin, pin 1Hot in run and start. 2016 and 2019 sheets agree.
Ground
Body ground
Body metal under the dashClean, bare metal only. Never the battery negative post.
Accessory
Violet/Yellow
Ignition switch black 6-pin, pin 3Hot in accessory and run.
Never tap the starter circuit for power.
Power wires from installer sheets for 2016 and 2019 Colorados on the12volt and iDatalink guides for 2017 to 2021 trucks.
What are the turn signal, reverse and light wires on a 2017 Chevrolet Colorado / GMC Canyon?
Circuit
Wire color
Location and what it does
Left turnPositive +Not yet checked
Light Blue/White (front)
Gray/Yellow (rear)
BCM brown 26-pin, pins 2 and 1Flashes with the left signal. From the 2016 sheet.
Right turnPositive +Not yet checked
Light Green/Violet (front)
White/Yellow (rear)
BCM black 26-pin, pins 3 and 4Flashes with the right signal.
Park lightPositive +Not yet checked
Violet/Gray (left front)
Gray/Brown (right front)
Light Green/Gray (switch, negative)
BCM black 26-pin, pins 6 and 5; switch input at the BCM white 26-pin, pin 22The 2016 sheet and iDatalink agree on the switch input.
HeadlightNegative -Not yet checked
White/Violet
BCM white 26-pin, pin 16, or headlight switch 12-pin, pin 1Headlight switch input.
ReversePositive +Not yet checked
Light Green/White
BCM gray 26-pin, pin 3Hot in reverse. The same color is listed for the hazard input on another plug; meter it.
Dome lightPositive +Not yet checked
Gray
BCM blue 27-pin, pin 5Dome output.
Each chip shows the main insulation color with its stripe. Each row names its source.
Where are the brake, door, speed and CAN wires on a 2017 Chevrolet Colorado / GMC Canyon?
BCM gray 26-pin, pin 15Grounds with the parking brake set.
HazardNegative -Not yet checked
Light Green/White
BCM blue 27-pin, pin 26Hazard switch input.
Lock / unlockNegative -Not yet checked
Brown/Yellow (lock)
Brown/White (unlock)
BCM blue 27-pin, pins 19 and 152016, 2017 and 2019 sources agree.
TachAC signalNot yet checked
Violet/Black (4-cyl)
Yellow (V6)
Yellow/Violet (diesel)
Camshaft position sensor: pin 3 (4-cyl), pin 2 (V6), pin 3 (diesel)Engine speed signal, from the 2016 sheet.
Vehicle speedNot foundNot yet checked
Not found
Not foundThe 2016 sheet only says "wheel speed sensor" with no color.
CAN busDataNot yet checked
Light Blue (high)
White (low)
Light Green (GMLAN)
OBD port, pins 6, 14 and 1; also BCM blue 27-pin, pins 24, 23 and 22Never cut or splice them.
Sources: installer sheets for 2016 and 2019 Colorados on the12volt, iDatalink guides for 2017 and 2017 to 2021 trucks, and GM's body builder manual (upfitter power). The vehicle speed wire color was not found.
Which years share wiring with the 2017 Chevrolet Colorado / GMC Canyon?
This page2017The 2016 sheet (a follow-up says 2017 is essentially identical) and the iDatalink 2017 guide.
Same wiring2015, 2016, 2018, 2019, 2020, 2021 and 2022Second generation. The 2016 sheet, a 2019 sheet and the iDatalink 2017 to 2021 guide agree on the BCM colors.
Not this page2012 and older, 2023 and newerThe first generation has its own pages. We found no wire colors for the 2023 and newer trucks yet.
Where are the fuse boxes and ground points on a 2017 Chevrolet Colorado / GMC Canyon?
Upfitter powerJunction block above the batteryGM's body builder manuals put upfitter power at the junction block on the front of the dash above the battery, with a ground stud above it.
FusesFuse map not confirmedWe did not find a fuse map we trust. Check the lid.
Ground pointsGM ground studUse the ground stud above the junction block or clean, bare body metal, never the battery negative post.
Our team has not yet checked the fuses on a truck.
Where is the OBD-II port on a 2017 Chevrolet Colorado / GMC Canyon?
OBD II
Diagnostic portOBD-II port: under the driver dashPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2017 Chevrolet Colorado / GMC Canyon wiring
What wire is constant power on a 2017 Chevrolet Colorado / GMC Canyon?
Red/Violet at the BCM blue 27-pin, pin 4. Always hot, 30A. Meter it before you tap it.
What wire is ignition on a 2017 Chevrolet Colorado / GMC Canyon?
Violet/Black at the BCM green 25-pin, pin 6. Hot in run and start. Meter it before you tap it.
Where is the reverse wire on a 2017 Chevrolet Colorado / GMC Canyon?
Light Green/White (positive +) at the BCM gray 26-pin, pin 3. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2017 Chevrolet Colorado / GMC Canyon?
Violet/White (positive +) at the BCM gray 26-pin, pin 8. Hot with the pedal pressed. Meter it before you tap it.
Where is the parking brake wire on a 2017 Chevrolet Colorado / GMC Canyon?
Light Blue/Violet (negative -) at the BCM gray 26-pin, pin 15. Grounds with the parking brake set. Meter it before you tap it.
Where is the CAN bus on a 2017 Chevrolet Colorado / GMC Canyon?
Light Blue (high) and White (low) and Light Green (GMLAN) at the OBD port, pins 6, 14 and 1; also BCM blue 27-pin, pins 24, 23 and 22. Never cut or splice them.
Which years share wiring with the 2017 Chevrolet Colorado / GMC Canyon?
2015, 2016, 2018, 2019, 2020, 2021 and 2022. Second generation.
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