This is only for OEM headlights not aftermarket headlights.
This harness is for those with 2015(New Body) and 2016-2022 Colorado's that would like to disable their headlights as their DRL's and instead use the front side marker as their DRL.
This version is for those that are running HID headlight bulbs, this harness provides clean power to the HID bulbs. If running stock or LED headlight bulbs please refer to our STOCK/LED HARNESS
This harness is useful when installing HID bulbs as you do not want to run them in DRL mode, due to the voltage spikes. This harness also provides clean power to the headlights at night, so no need to worry about current overload.
For those looking to add LED turn signal/park bulbs please select the appropriate option. This option will include load resistors already added into the harness. Bulbs are not included.
If you are planning on running switchback bulbs in your truck, please know that there are many different manufacturers out there, and many of them do not function in the Colorado's, they will actually produce a strobing effect as the internal capacitor in the bulb does not properly match the output from the truck. If you install switchback bulbs and experience that issue, please know it is the bulbs and is not the harness causing the issue.
After install, please confirm the following for DRL mode.
Switch in Auto
Engine running
Adequate light hitting the dash sensor
Truck shifted out of park. If in park no lights will be on.
When the above conditions are all met, you will have just the front ambers on
INSTALL INSTRUCTIONS-CLICK HERE
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