av8torken

What part(s) do you need help with? I will help you understand. And by not using relays and doing it my way, you won't hear anything extra in addition to the stock blinker noise.

wolfewl

To be honest, almost all of it... The only things I recognize are power, ground, and the resisters. What is the BCM? What are T0 thru T3 (some type of relay)?

I'm thinking one circuit in each mirror (and hoping that both required power sources and ground are available there too)?

av8torken

The BCM is the body control module, this is just short hand for locating the stock wires going to the driver and passenger side mirrors respectively. The mod circuit would need to be patched in there.

T0-T3 are just basic transistors, which you could think of as a non mechanical relay that won't wear out or make clicking noises.

I'm not sure if the door is grounded or not to the body, or if it's isolated.

I would hope that there's an ignition switched +12V in the door.

I also agree putting a mod circuit in each door would be the cleanest and best install.

Can someone confirm if theres a switched +12 volts and ground available in the door?

av8torken

I may have a way to reduce the number of components to just three per side! Will let you know more soon!

av8torken

Bump. Would anyone be interested in any kits for this?

Billbeau

Yah if you can show it works. Right now it's just theory until you can see if there is a switched 12v in the door.

av8torken

I don't own a `15, only a `13, so someone else will have to try it if I send them a kit.

RceRdFX4

I know on a lot of GM cars the front side markers blink with the turn signals if the parking lights are off, if they are on the side market blinks opposite of the turn signal. So when the turn signal is lit the side market is out and when the turn signal is not lit the side market is lit again. Haven't checked on my new truck though

av8torken

That's the way my mod would work if I understand your description properly.

Think of it as a switchback and not a halfassed diode/resistor solution that was mentioned here in post #19 pointing to the duramaxforum.

Jason_Larsen

Would this be able to handled with programing? the module is what drives all this.