Cargo Light On With Dome Light

beav626 · October 9, 2008

has anyone done this mod? If so -I want to. can you give me details on how do do it.

seadoons · October 9, 2008

Ford trucks are wired that way. When you open the door the inside dome lights and rear cab lights all come on.

If someone has this mod let me know - I would try it if not too hard!

beav626 · October 9, 2008

Yeah-It does not seem too hard but I want to see if anyone has done this?

sillyazz · October 9, 2008

Just a question why would you want your cargo light to come on with your dome light ? Wouldnt you want them to come on seperatly ? I know on the GMT 900's when you turn on your cargo light the dome light comes on and its annoying as hell.

beav626 · October 10, 2008

I like that when I open my door that my bed lights up too

beav626 · October 10, 2008

I took off my 3rd brake light this morning and saw three wires-Orange, Dark Brownish, White. (I think I got that right)

95Sierra2500 · October 10, 2008

Ummm...I don't know if they changed it on newer trucks, but if you flip the switch for the cargo light, it doesn't come on unless the dome light comes on. Which means, if you want your cargo light on, the door has to be open or you have to crank the dial on your interior lights until the dome lights come on.

It's not really a mod but a flip of a switch.

beav626 · October 12, 2008

on my 01 it is not a rocker switch-its a push button.

beav626 · October 14, 2008

anyone done this?

shadaytree · May 14, 2009

i was wondering if anybody knows how to turn on the cargo light without the dome being on in a new sierra. my buddy has on '05 silverado and he just presses a switch. i want to be able to turn it on only so that i can see out of my window and into the bed of my truck at night to make sure nothing as blown out or leaning on anything it shouldn't be. any help would be awesome

brims · May 14, 2009

i was wondering if anybody knows how to turn on the cargo light without the dome being on in a new sierra. my buddy has on '05 silverado and he just presses a switch. i want to be able to turn it on only so that i can see out of my window and into the bed of my truck at night to make sure nothing as blown out or leaning on anything it shouldn't be. any help would be awesome

You would need to find the wire that goes to the cargo lamps and run a hot wire through a switch and to that wire.

The cargo light comes off the BCM on connector X6 pin 2 then into the left instrument panel junction block X12 pin 6 then out X9 pin 6. If you intercepted that wire anywhere along the way and cut it and applied 12V to the wire that leads to the lamps (not to the BCM) you would light those 2 bulbs. Or you could remove the dome lights and then use the knob to turn the cargo lamp on.

The left instrument panel junction block connector x12 is the brown connector; looking at the end of the connector that goes into the junction block with the release facing up, the lower left pin is 1 the pin to the right is 2. The left instrument panel junction block X9 connector is purple; this connector's pin layout is the same as the previous. The X6 connector on the BCM is pink, pin 2, if you are looking at the end of the connector that plugs into the BCM with the release clip up, the upper right hand pin is 1, the pin to the left is 2.

Hopefully this makes sense, if not, I will try to clarify. Are we allowed to post information from the Helm service manual? I know we were under the GM lockdown for a while.

Sir Dan · May 15, 2009

Just a question why would you want your cargo light to come on with your dome light ? Wouldnt you want them to come on seperatly ? I know on the GMT 900's when you turn on your cargo light the dome light comes on and its annoying as hell.

Amen brother! WTF were they thinking!!...from inside the cab at night I can't even see if the dog is still in the back after that last speed bump!

gdpgmc · May 15, 2009

Amen brother! WTF were they thinking!!...from inside the cab at night I can't even see if the dog is still in the back after that last speed bump!

Dude, don't keep the dog in the truck bed, Please!

shadaytree · May 18, 2009

i was wondering if anybody knows how to turn on the cargo light without the dome being on in a new sierra. my buddy has on '05 silverado and he just presses a switch. i want to be able to turn it on only so that i can see out of my window and into the bed of my truck at night to make sure nothing as blown out or leaning on anything it shouldn't be. any help would be awesome

You would need to find the wire that goes to the cargo lamps and run a hot wire through a switch and to that wire.

The cargo light comes off the BCM on connector X6 pin 2 then into the left instrument panel junction block X12 pin 6 then out X9 pin 6. If you intercepted that wire anywhere along the way and cut it and applied 12V to the wire that leads to the lamps (not to the BCM) you would light those 2 bulbs. Or you could remove the dome lights and then use the knob to turn the cargo lamp on.

The left instrument panel junction block connector x12 is the brown connector; looking at the end of the connector that goes into the junction block with the release facing up, the lower left pin is 1 the pin to the right is 2. The left instrument panel junction block X9 connector is purple; this connector's pin layout is the same as the previous. The X6 connector on the BCM is pink, pin 2, if you are looking at the end of the connector that plugs into the BCM with the release clip up, the upper right hand pin is 1, the pin to the left is 2.

Hopefully this makes sense, if not, I will try to clarify. Are we allowed to post information from the Helm service manual? I know we were under the GM lockdown for a while.

man this dont make to much sense to me but when i get some time i will try to get in there and toy with some wires. thanks for the info.

brims · May 18, 2009

i was wondering if anybody knows how to turn on the cargo light without the dome being on in a new sierra. my buddy has on '05 silverado and he just presses a switch. i want to be able to turn it on only so that i can see out of my window and into the bed of my truck at night to make sure nothing as blown out or leaning on anything it shouldn't be. any help would be awesome

You would need to find the wire that goes to the cargo lamps and run a hot wire through a switch and to that wire.

The cargo light comes off the BCM on connector X6 pin 2 then into the left instrument panel junction block X12 pin 6 then out X9 pin 6. If you intercepted that wire anywhere along the way and cut it and applied 12V to the wire that leads to the lamps (not to the BCM) you would light those 2 bulbs. Or you could remove the dome lights and then use the knob to turn the cargo lamp on.

The left instrument panel junction block connector x12 is the brown connector; looking at the end of the connector that goes into the junction block with the release facing up, the lower left pin is 1 the pin to the right is 2. The left instrument panel junction block X9 connector is purple; this connector's pin layout is the same as the previous. The X6 connector on the BCM is pink, pin 2, if you are looking at the end of the connector that plugs into the BCM with the release clip up, the upper right hand pin is 1, the pin to the left is 2.

Hopefully this makes sense, if not, I will try to clarify. Are we allowed to post information from the Helm service manual? I know we were under the GM lockdown for a while.

man this dont make to much sense to me but when i get some time i will try to get in there and toy with some wires. thanks for the info.

Give me a few minutes and I'll post a few pictures.