Which wires give constant, ignition and ground on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
On a 2024 Chevrolet Blazer EV Police (PPV / SSV), take constant power from the Red/Violet wire at the console power stud (circuit 842), ignition from the Violet/White wire at the console harness X1, terminal 15 (circuit 4939), and ground to the Black wire at the console ground (circuit 7350). Meter every wire first.
Meter every wire before you tap it. Colors change with trim and build date.
OBD-II port:Under the driver dashBest power spot:GM console provisionsSystem voltage:12V accessory systemDrive:Electric
Where do I get constant, ignition and ground on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
Take constant, ignition and ground from the same area. Police Blazer EVs carry GM police provisions between the front seats and in the rear.
Option 1 Police harness
Console provisions
GM police harness between the front seats, on 9C1, 9C3 and 5W4 Blazer EVs.
Constant
Red/Violet
Console power stud (circuit 842)Fused battery feed for police equipment.
Console ground (circuit 7350)Heavy ground beside the console power stud.
Accessory
Violet
Console harness X1, terminal 14 (circuit 2801)Retained accessory power, fuse F3DA 15A. It can drop when a door opens; do not use it for GPS or cameras.
Green/Gray (817) speed, Yellow/Black (5813) park and Blue/Brown (8917) driver door are on the same X1 plug.
Option 2 Rear
Rear provisions
GM's rear police power and ground.
Constant
Red/Green
Rear police provisions (circuit 742)Fused battery feed in the rear.
Ignition
Violet/White
Rear police harness (circuit 4939)Same run/crank circuit as the console.
Ground
Black
Rear ground (circuit 7150)Ground beside the rear power feed.
GM fuses the two battery feeds at F8UB (80A) and F10UB (100A).
From GM's 2024 Blazer EV police specification guide (OEM), police provisions table and wiring pages. Civilian Blazer EVs do not have these harnesses.
Where are the turn signal, reverse and light wires on a 2024 Chevrolet Blazer EV Police (PPV / SSV) for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundNot in GM's police provisions.
Right turnNot foundNot yet checked
Not found
Not foundNot in GM's police provisions.
Park lightNot foundNot yet checked
Not found
Not foundNot in GM's police provisions. Yellow (6817) is the dash dimming signal.
ReverseNot foundNot yet checked
Not found
Not foundNot in GM's police provisions.
BrakePositive +Not yet checked
Not found
Console harness X1, terminal 19 (circuit 820)Brakes applied. GM lists the terminal but does not print the color.
HeadlightNot foundNot yet checked
Not found
Not foundNot in GM's police provisions.
Each chip shows the main insulation color with its stripe. Source: GM's 2024 Blazer EV police specification guide.
Where are the brake, door, speed and CAN wires on a 2024 Chevrolet Blazer EV Police (PPV / SSV) for advanced 360 multicam and video telematics installs?
Circuit
Wire color
Location and what it does
In parkPositive +Not yet checked
Yellow/Black
Console harness X1, terminal 20 (circuit 5813)Park enable, from the transmission park relay.
Vehicle speedAC signalNot yet checked
Green/Gray
Console harness X1, terminal 13 (circuit 817)4,000 pulses per mile.
Driver doorPolarity: meter itNot yet checked
Blue/Brown
Console harness X1, terminal 16 (circuit 8917)Driver door ajar.
SurveillancePolarity: meter itNot yet checked
White/Violet
Console harness X1, terminal 18 (circuit 6821)Surveillance (dark) mode signal from the BCM.
Upfitter relaysPositive +Not yet checked
Red/Green (relay 1)
Red/Gray (relay 2)
Red/White (relay 3)
Red/Yellow (relay 4)
Console (1, 2) and rear (3, 4)GM customer relay supply circuits 8911 to 8914.
Source: GM's 2024 Blazer EV police specification guide (OEM, version V112525). Turn, park, headlight and reverse wires are not in GM's police provisions, and the brake wire color is not printed.
Where are the fuse boxes and ground points on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
Battery feedsF8UB 80A and F10UB 100AFused feeds to the console and rear power studs.
SwitchedF13DA and F3DA, 15ARun/crank ignition (4939) and retained accessory (2801).
Ground pointsGM ground circuits 7350 and 7150Console and rear. Never the battery negative post.
From GM's 2024 Blazer EV police specification guide. Our team has not yet checked these on a vehicle.
Where is the OBD-II port on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
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.
Which years share wiring with the 2024 Chevrolet Blazer EV Police (PPV / SSV)?
This page2024From GM's own 2024 guide.
Same wiring2025, 2026 and 2027GM's 2024 to 2027 guides print the same colors.
Not this pageCivilian Blazer EVRetail Blazer EVs do not have the police provisions.
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This page covers the 2024 Chevrolet Blazer EV police and special service vehicle (9C1 PPV, 9C3, 5W4 SSV) with GM's police wiring provisions.
Every color here comes from GM's own 2024 Blazer EV specification guide. Our own team has not yet metered these on a 2024 vehicle, and each row says so.
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.
Common questions about 2024 Chevrolet Blazer EV Police (PPV / SSV) wiring
What wire is constant power on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
Red/Violet at the console power stud (circuit 842). Fused battery feed for police equipment. Meter it before you tap it.
What wire is ignition on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
Violet/White at the console harness X1, terminal 15 (circuit 4939). Run/crank ignition, fuse F13DA 15A. Meter it before you tap it.
Where is the brake wire on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
The wire color is not published. It is at the console harness X1, terminal 19 (circuit 820). Brakes applied. Meter it before you tap it.
Where is the vehicle speed signal on a 2024 Chevrolet Blazer EV Police (PPV / SSV)?
Green/Gray at the console harness X1, terminal 13 (circuit 817). 4,000 pulses per mile. Meter it before you tap it.
Which years share wiring with the 2024 Chevrolet Blazer EV Police (PPV / SSV)?
2025, 2026 and 2027. GM's 2024 to 2027 guides print the same colors.
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