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Discussion Starter · #1 ·
During a recent trip to the desert to watch a Meteor shower i realized how much i hate my cargo light turning on everytime i open or unlock the doors.

So i figured out how to make the cargo light come on only with the switch.

I will try to make this as simple as i can..

There is two ways the cargo light relay can turn on..

1. the BCM (body control module) sends a ground to the relay to turn it on.

2. the switch sends a ground to the BCM which sends it to the relay.

So what i did was take the BCM out of the cargo light system. I took the ground signal wire from the back of the switch and wired it directly to the relay.

So basically all you do is take the GREY wire coming out of the switch and connect it to the PINK wire going into the relay. Make sure you cap both the wires going in to the BCM and label them so if you ever have to reconnect it it wont be a *****..


Here is a shot of the relay. It is Blue and right behind the switch. Thats the BCM next to it




QUESTIONS WELCOME.........
 

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so now that you changed that, the light doesn't come on when you hit your alarm either, right?

where in the vehicle is that group of wires located?
 

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thanks alot, I think i understand, i'm not that good with wires and such. I will give this a try when i take off the switches to wire up my fog lights. i have when that cargo light comes on, I changed my interior lights to blue, and i only like to see them when i hit the alarm or open the door.
 

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Ok, let me get this straight...bare with me, I'm dumb.

I cut the grey wire coming from the cargo light switch, wrap tape around the end that I cut and tuck it back into it's small wire bundle. Then I solder a jumper wire onto the remaining grey wire(pigtail that's sticking out of the cargo light switch plug). I then cut the pink wire that's on the relay and wrap electrical tape around the end that I cut and tuck it back into it's small wire bundle. I solder the other end of that jumper wire to the pink wire (pigtail that's sticking out of the relay)...

Does that sound right??
 

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Discussion Starter · #6 ·
bunghole said:
Ok, let me get this straight...bare with me, I'm dumb.

I cut the grey wire coming from the cargo light switch, wrap tape around the end that I cut and tuck it back into it's small wire bundle. Then I solder a jumper wire onto the remaining grey wire(pigtail that's sticking out of the cargo light switch plug). I then cut the pink wire that's on the relay and wrap electrical tape around the end that I cut and tuck it back into it's small wire bundle. I solder the other end of that jumper wire to the pink wire (pigtail that's sticking out of the relay)...

Does that sound right??
you got it. thats all you do to make it only come o with the switch. it never comes on by it self. yes sir
 

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dont worry mobber i like the mod, i'm going to do it once i take off the bottom of my dash to install my fog light switch.

kill 2 birds at one stone.
 

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you know if you have the door open all you have to do is flip the switch on then off and it will turn the light off untill you open the door again.
 

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I didnt know that, thats good to know. but then all the bugs can fly in your truck while its open. I hate that .haha
 

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you can close the door once you push the switch. also you can turn the front and rear lights off with the switch on each light. if you dont want them to come on when you open the doors.
 

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I feel retarded. I tore the whole dash apart looking for that relay. I mean just about everything. Then it came to me it really doesn''t mater where the relay is because both of the wires you need are right there at the BCM. The silver thing in the first picture isn't the BCM I think it's the 4WD brain. The BCM is the black box over by the OBD II port. After figuring out which pins 30 and 51 were you just have to peel the electrical tape back a bit to get some slack on the wires. Cut both the grey and the pink wire (the pink one with ONE silver stripe every inch or so) and hook those together. Works perfect. I might have to get another cargo light switch when I get my off road lights now that I know what pins do what on the one in the truck. I was thinking that maybe you could make a new lable for it somehow. Cool mod just don't be retarded like me and tear your dash apart. Everything you need is right below the lower drivers side panel. The flash on my camera isn't working so I couldn't get any pictures of the wires or the BCM. I'll look later on my other computer and see if I have one from when I added the steering wheel audio controls. Thanks for the mod idea NismoMobber.
 
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anyone have any pics of the correct BCM and wires.


O5CC4x4

how did you add stero control after market?
 

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Discussion Starter · #17 ·
awesome glad it worked out for some of you. all you have to do is remove your lower dash panel (below the steering wheel) and the relay will be right there. or you could cut the wire going in and out of the BCM not the one i showed you the real one!

i did this mainly for camping and offroading where i would like to be able to get out of my truck without giving away my position at night...Stealth....
 

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The silver thing in the first picture isn't the BCM I think it's the 4WD brain. The BCM is the black box over by the OBD II port.

WHAT IS THE OBD II port?
 

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thanks for the responce, hopefully i can find it. i'm sure i will but i am

<----- mechanically challenge
 
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