OBD2 can-bus

[Marcel]

Hi there, 

I am trying to access the can bus line to do some can sniffing on the obd2 port underneath my F850gs seat, it is the 16 pin rectangular connector (car type) and not the 10pin circular bmw connector. 

My trouble is that no matter what I do I only get one constant stream of the same message on there....

Bus,MessageID,Message,MessageLength

0,0x130,0xf7ffffffffff1f0c,8

0,0x130,0xf7ffffffffff1f0c,8

0,0x130,0xf7ffffffffff1f0c,8

0,0x130,0xf7ffffffffff1f0c,8

looking at your xls document that you have put together, I see:

660 - CAN Answer to OBD2-Request 6F1
6F1 - OBD2-Request

am I correct in assuming that to access the can bus system on the obd2 port I have to first request access with the above?

any help would be much appreciated

all the best

Marcel

[Keith Conger]

Hi Marcel,

Most of us are tapping CAN lines elsewhere like the alarm, cluster, or RDC connectors.  I'm personally not sure how or if you can expose all the CANbus messages through the OBD port pins. 

Keith

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[Marcel]

Hi Keith!

Thanks for getting back to me!

Yeah I saw that is what most people are doing, unfortunately getting my hands on the repair / alarm plug in South Africa is going to be a story, will have to ship it here and that makes everything double or triple the price, guess that's what I'll have to do to tinker on, 

Also good job on the WunderLINQ, hopefully one day I can buy one as I'd love to tinker with that!, do you think with the WunderLINQ you could connect to the iPhone as a "Bluetooth Assistive Touch" pointing device/mouse and control any app/iOS with the wonder wheel?

Anyway I'll stay in touch and share what I find along the way

All the best

Marcel

[megah...@gmail.com]

Hello. Good that I seen this tread:

I am planning to tap CANBUS on DWA. it's called CAN_L,CAN_H. But  ODB2 connector goes directly to A240 (DME) and it is called D_CAN_L,D_CAN_H. ( I have wiring diagram in ISTA+ program).

Is it possible connect diagnostic to internal canbus, or is it working just with external CANBUS ? IF yes, I am in big trouble :) Since i was planning to to like error reading, and service reset and so on on internal canbus, but i did not try that.

[Bernhard Eichler]

Hi Guys,

I found this very interesting conversation.

I'm also working on an Android based Dashboard for my R1200GS (K25).

I'm using a OBDlinkMX+ to connect the CAN Bus and want to use RealDash as GUI.

Has anybody already done similar configuration? 

Doas anybody know working values for CAN speed, CAN Frame and ODB2-Protokoll (ISO 11898 or ISO 15765)?

Thanks and best regards,

Bane