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Subaru Impreza 2008 OBD/ CAN
Posted:
Sun Jan 13, 2008 1:00 pm
by Mad Max
Hi. I know that cable/ soft for this car is under development.
But can anybody tell me how to logging data from ECU? Is it possible now?
Problem is that I cand find K/L Lines.
4,5 ground
16 +12
But I don't have any wire at 15 pins!
So I don't know how to connect cable to OBD connector.
Posted:
Sun Jan 13, 2008 4:35 pm
by radsdau
If there is no KLine, there is no logging with the current hardware. CAN bus only.
Posted:
Sun Jan 13, 2008 11:26 pm
by Mad Max
you see, there are lot of wires. And k/L lines must be present.
But I don't know were they are placed.
As I remember, I have wires in 3,4,5,6,7,8,14,16 contacts.
(But I'm not sure about 8 and 14).
In any way, I don't have wire in contact 15.
Posted:
Mon Jan 14, 2008 10:28 am
by Jon [in CT]
radsdau wrote:If there is no KLine, there is no logging with the current hardware. CAN bus only.
2008 Subarus still have the K-Line and can be logged using Enginuity or ecuExplorer.
Posted:
Tue Jan 15, 2008 1:05 am
by Mad Max
I found that K-line myst be in Pin 10 of OBD conector.
(See attached picture. This is schematic of Legacy 2004.)
I have it in my connector.
Ground (12,13) and +12 (1) they are present to.
But what is the pink wire on pin 6? is it L-line? In my connector pink wire is at pin 3.
By the way: how this F*king SSM protocol is work for data logging?
Is it one way connection or is it two way connection?
Posted:
Tue Jan 15, 2008 7:19 am
by Mad Max
And please help me with next:
As I understand, Subaru K-line have +5 V (Hi level TTL) in normal mode.
When we send data to ECU, OpenPort short K-line to the ground (low level TTL) and ECU recive data in this way. After ECU recognise sent data, it answer and send data with 12 V amplitude signal to OpenPort.
In OpenPort signal divided in 3 times to TTL level. PC recive ECU data and calculate them.
I'm right or not?
Posted:
Tue Jan 15, 2008 6:50 pm
by radsdau
Mad Max wrote:By the way: how this F*king SSM protocol is work for data logging?
Is it one way connection or is it two way connection?
Only KLine is required for SSM protocol.