2019 Chevrolet Colorado - North America
Item Wire Color Polarity Wire Location
12 Volts Red/Violet (30A) + BCM under driver dash, blue 27 pin plug, pin 4
Second 12 Volts Red/Lt. Blue (2A only) + Ignition Switch, black 6 pin plug, pin 2
Ground (chassis ground)
Starter Yellow (for starter kill only) + Starter Motor or Underhood Fuse Box, black 50 pin plug (X3), pin 5
Ignition Violet/Black + Ignition Switch, black 6 pin plug, pin 1
CAN Bus High Lt. Blue Data OBD-Data Link Connector, black 16 pin plug, pin 6
CAN Bus Low White Data OBD-Data Link Connector, black 16 pin plug, pin 14
CAN Bus SW Lt. Green Data OBD-Data Link Connector, black 16 pin plug, pin 1
OBD 12 Volts Red/White (10A) + OBD-Data Link Connector, black 16 pin plug, pin 16
OBD Ground Black - OBD-Data Link Connector, black 16 pin plug, pin 4
Power Lock brown/yellow - BCM under driver dash, blue 27 pin plug, pin 19
Power Unlock brown/white - BCM under driver dash, blue 27 pin plug, pin 15
Lock Motor brown/yellow 5 wire BCM under driver dash, pink 27 pin plug, pin 4
Driver Unlock Motor gray 5 wire BCM under driver dash, pink 27 pin plug, pin 1
Passenger Unlock Motor gray/lt. green 5 wire BCM under driver dash, pink 27 pin plug, pin 2
Factory Alarm Arm (arms on lock with door open)
Factory Alarm Disarm (see disarm no unlock)
Disarm No Unlock (transponder and ignition)
Parking Lights violet/gray (LF); gray/brown (RF); brown/blue (LR); brown/gray (RR) + BCM under driver dash, black 26 pin plug, pins 6, 5, 7; brown 26 pin plug, pin 7
Parking Lights - Lt. Green/Gray - Headlight Switch, black 12 pin plug, pin 5
Hazards lt. green/white - BCM under driver dash, blue 27 pin plug, pin 26
Turn Signal (Left) lt. blue/white (F); gray/yellow (R) + BCM under driver dash, brown 26 pin plug, pins 2, 1
Turn Signal (Right) lt. green/violet (F); white/yellow (R) + BCM under driver dash, black 26 pin plug, pins 3, 4
Headlight white/violet - headlight switch, black 12 pin plug, pin 1
AutoLights lt. green/brown - (off) headlight switch, black 12 pin plug, pin 3
Left Front Door Trigger Gray - Driver Window Motor, black 7 pin plug, pin 6
Right Front Door Trigger gray - passenger window switch, black 8 pin plug, pin 8
Left Rear Door Trigger gray (extended cab); gray (crew cab) - BCM under driver dash, pink 27 pin plug, pin 27; LR window switch, black 8 pin plug, pin 2
Right Rear Door Trigger gray (extended cab); gray (crew cab) - BCM under driver dash, gray 26 pin plug, pin 11; RR window switch, black 8 pin plug, pin 2
Dome Light gray + BCM under driver dash, blue 27 pin plug, pin 5
Hood Pin brown/lt. green - BCM under driver dash, black 26 pin plug, pin 24
Tachometer brown, lt. blue, lt. green, or gray/lt. blue (I-4) ac passenger side of engine, black 12 pin plug, pin 1, 2, 3, or 4
Note - Tachometer: On V6 models, use the camshaft position sensor, yellow wire, driver side front of engine, black/blue 3 pin plug, pin 2.
On diesel models, use the camshaft position sensor, yellow/purple wire, passenger side front of engine, black 3 pin plug, pin 3.
Fuel Pump violet/gray (gasoline); gray (diesel) + underhood fuse box, black 50 pin plug (X3), pin 20; black 74 pin plug (X2), pin 6
Horn Trigger brown/white - BCM under driver dash, brown 26 pin plug, pin 19