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Posted

Please help. I am installing accent lights on the exterior and interior of my truck. Does anyone know how I can wire them to turn on when the doors open on my 2020 silverado 2500HD?

  • 3 weeks later...
Posted (edited)

Just a matter of finding the dome light wire. Hopefully someone can point us in the right direction 

Edited by motorsswin
Posted

you'd need to find the "door trigger" wire, or utilize the Dome Light wire.  I found this online for a 2019, may be the same.  Depending on the lights you are doing you may need to add in a relay to carry the amperage your lights may require.

 

Left Front Door Trigger     Gray or Pink (power window)     -     Driver Door Latch, green 10 pin plug, pin 1

Left Front Door Trigger 2     Gray (manual window)     -     BCM under driver dash, gray 26 pin plug, pin 25

Right Front Door Trigger     Gray (power window)     -     Passenger Door Latch, green 10 pin plug, pin 5

Right Front Door Trigger 2     Gray (manual window)     -     BCM under driver dash, gray 26 pin plug, pin 14

Left Rear Door Trigger     Gray or Green     -     Left Rear Window Switch, black 10 pin plug, pin 2

Right Rear Door Trigger     Green     -     Right Rear Window Switch, black 10 pin plug, pin 2

Dome Light     Gray     +     BCM under driver dash, white 26 pin plug, pin 23

  • Thanks 1
  • 4 months later...
Posted

Reviving the dead here as I am looking to add lights to shine on my running boards. I did this on my 2015 GMC sierra 1500 using the puddle lamp circuit on the BCM. Does anyone know which wire this would be on the 2500HD? Picture for reference. 

IMG_20190105_181606.jpg

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