Hi,
searching the Net I found page one of this thread which looks very important to me.
In fact, I would like to find CAN Code to control the rear side windows from my own CAN-Module.
Until I know how it works and what to do I use my notebook instead.
Currently it’s connected to CAN 11bit 125 Kbaud and can scan all relevant messages.
As I’m work on these just few weeks I have some questions:
1) have I to take car of this different buses
Switch -> LINBUS -> FRM -> KCAN -> JBE -> KCAN -> Window motor
If I’m connected to possibly one of these I think I can send the right command to control the window motor.
I have found several messages like window position, moving or not etc.
But I need some help to understand (how to find out) what is the initial command
I.e. let’s take the cabin lights from HighVoltage at the beginning of this threat.
Code:
CANID LEN DATA Notes:
1E3 ___ 2 ___ F1 FF ____ Command, wait for response
21A ___ 3 ___ 00 10 F7__ Response
1E3 ___ 2 ___ F0 FF ____ Command
2) HighVoltage, how do you found/ decided 1E3 is the command ID and not any message
3) Is there any relationship between 1E3 and 21A or how you found that?
4) Do I understand well, if I send 1E3 . . . to the bus cabin light will go on/off?
5) I have a problem to understand:
Request ID Response ID (from diff. examples)
745 _____ 74D ___ (diff. 8)
7E1 _____ 7E8 ___ (diff. 7)
7E0 _____ 7E8 ___ (diff. 8)
7EE _____ 7?? ___ as far as it is possible
1E3 _____ 21A
It’s enough for today.
(Questions are just in general, I’m not really talking about BMW)