Looking for BCM2 (Rear BCM) connector pinouts

[whitex]

Specifically the pinouts of the signals driving the turn signals. If anyone has them, please reply here, or DM me if you prefer to stay anonymous.

For those interested, BCM2 controls a bunch of things:

It looks like this:

and it lives in the rear right part of your trunk

 

[Tooney]

Specifically the pinouts of the signals driving the turn signals. If anyone has them, please reply here, or DM me if you prefer to stay anonymous.

You are likely one of the reasons for Porsche's Protection of Vehicle Diagnosis system that requires connection to Porsche mothership and authentication for certain service access.

 

[Jhenson29]

Can you put some kind of breakout cable in line to check for voltage during those functions? That’s what I typically do if I can’t find specs.

 

[mystermykee]

You are likely one of the reasons for Porsche's Protection of Vehicle Diagnosis system that requires connection to Porsche mothership and authentication for certain service access.

It's for a good cause! @whitex is a pioneer!

 

[whitex]

Can you put some kind of breakout cable in line to check for voltage during those functions? That’s what I typically do if I can’t find specs.

That is precisely what I will be doing this weekend. It helps to know which of the myriad of unconnected pins to tap. Need to find the 2 pins which are not connected on NA cars, but are connected on others. Any pinout information up front saves a bunch of work. In this case I don't have a pinout on either side yet (and both sides have unconnected pins). Not even sure if turn signal is controlled via an analog signal driving the LED's or a LIN bus, which is also available on BCM for rear lights (might me only for animated lights, but could be for diagnostics too). Also, if those pins are not toggling on their own, knowing which one should be toggling is most helpful.

 

[whitex]

You are likely one of the reasons for Porsche's Protection of Vehicle Diagnosis system that requires connection to Porsche mothership and authentication for certain service access.

I wish Porsche would just make their wiring diagrams available. There is nothing in there that the competition or even determined customers won't figure out (heck, competition buys full teardowns from companies like Sandy's Munro & Associates). Once someone has the info, it makes it onto the internet and it's out anyways. I wouldn't have to do this kind of things to figure it out:

 

[bigkraig]

I wish Porsche would just make their wiring diagrams available. There is nothing in there that the competition or even determined customers won't figure out (heck, competition buys full teardowns from companies like Sandy's Munro & Associates). Once someone has the info, it makes it onto the internet and it's out anyways. I wouldn't have to do this kind of things to figure it out:

people sell them on mhh, just search google for "Porsche Taycan wiring diagram (full)". DM me if you can't find it.

 

[whitex]

people sell them on mhh, just search google for "Porsche Taycan wiring diagram (full)". DM me if you can't find it.

Thanks. I eventually figured it out. A full diagram might be useful for other things though, will look for it.

 

[bigkraig]

Thanks. I eventually figured it out. A full diagram might be useful for other things though, will look for it.

you get it all hooked up yet? does it just take the additional wires to the BCM2?

 

[whitex]

you get it all hooked up yet? does it just take the additional wires to the BCM2?

Almost. Yes, requires 2 extra wires to the BCM2, and recoding. Will post a writeup once all done.

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