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Change configuration (explore different functions ASbuilt)

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3M views 7.3K replies 718 participants last post by  Minastirith  
Study SSU:
731-01-01 B0 B1 B2 B3 B4 B5(checksum) in HEX
...

731-01-02 B0 B1 B2 B3 (checksum) in HEX
...

731-01-03 B0 B1 B2 B3 (checksum) in HEX
...
Hi Oleg,

I've found a discrepancy in the number of bytes.
The real description for SSU module has to be:

731-01-01 B0 B1 B2 B3 B4 B5(checksum) in HEX
...

731-01-02 B0 B1 B2 B3 B4 B5(checksum) in HEX
...

731-01-03 B0 B1 B2 B3(checksum) in HEX
...
 
tarahumara
Thank you for explanation. Honestly I thought it is the same.

So, in my program (Mazda As-Built Editor) Follow me home = Lighting Coming Home

and program changes the following bits:

R_BCM

7B7-01-03 B0 B1 B2 B3 B4(checksum) in HEX
B1 - it is (in BIN):
b7 - 0 or 1 = function is not known
b6 - 0 or 1 = function is not known
b5 - 0 or 1 = Lighting Coming Home Light - ON
b4 - 0 or 1 = Lighting Coming Home Light - OFF
b3 - 0 or 1 = function is not known
b2 - 0 or 1 = function is not known
b1 - 0 or 1 = function is not known
b0 - 0 or 1 = function is not known
 
klyue2003

I think I know how to activate the leaving home light.
Today I've found out my CX-5 has leaving home light and coming home light by default :smile2:
There are corresponding settings in CMU.

So, here is my R_BCM as-built:
7B7-01-03 0038 9210 9C
It means to activate leaving home light and coming home light you need to set bit b4 and b5 in byte B1 of 7B7-01-03 configuration string.

Code:
7B7-01-03 B0 B1 B2 B3 B4(checksum) in HEX
B1 - it is (in BIN):
b7 - 0 or 1 = function is not known
b6 - 0 or 1 = function is not known
b5 - 0 or 1 = Coming Home Light - ON / Leaving Home light
b4 - 0 or 1 = Coming Home Light - OFF/ Leaving Home light
b3 - 0 or 1 = function is not known
b2 - 0 or 1 = function is not known
b1 - 0 or 1 = function is not known
b0 - 0 or 1 = function is not known
I guess the possible configurations are:

7B7-01-03 001x xxxx xx - Coming Home Light - DISABLED
7B7-01-03 002x xxxx xx - Coming Home Light - ENABLED
7B7-01-03 003x xxxx xx - Coming Home Light and Leaving Home light - ENABLED
 

Attachments

Your car is a CX-5?
If yes, coming and leaving home is activate bu default but run its a little special.
To activate coming you have to pull high beam switch to steering wheel.
And leaving home only run if low beam switch is in low beam position (not in Auto one)
Yes, my car is Mazda CX-5 2016.
(https://www.drive2.com/r/mazda/462149477239620912/)

You are absolutely right! I checked these functions this morning.
And it works as you described.
 
Yes, I Did.

and in the photo I attached we've already changed the name Driver 1 to Сергей (Sergey).

================================
BTW, the driver name depends on which smart key you are using. When I sit to my car I see Driver 2 instead of Driver 1.
When I took another key, and I have seen new popup message with Driver 1