NefMoto

Technical => Reverse Engineering => Topic started by: davgeek on October 15, 2019, 10:10:08 PM



Title: HVAC message from CAN in a ME7.5
Post by: davgeek on October 15, 2019, 10:10:08 PM
Hi everyone, Im triying get the signal from J293 over can bus on a bosh me7.5, but i didn't found something

The image ilustrate how the climatronic works on a bosh me7.5.10


Title: Re: HVAC message from CAN in a ME7.5
Post by: davgeek on October 15, 2019, 10:11:12 PM
Sorry i mean j255 instead of j293  :-[


Title: Re: HVAC message from CAN in a ME7.5
Post by: davgeek on October 15, 2019, 11:25:42 PM
I think i have the solution, with CWMDRLKO = 2 AC signal is taken over CAN, tomorrow i will test this.   :)


Title: Re: HVAC message from CAN in a ME7.5
Post by: rogerius on October 16, 2019, 01:39:32 AM
I think i have the solution, with CWMDRLKO = 2 AC signal is taken over CAN, tomorrow i will test this.   :)
I think you should look to CWKOCAN in FR.


Title: Re: HVAC message from CAN in a ME7.5
Post by: davgeek on October 16, 2019, 07:52:43 AM
I think you should look to CWKOCAN in FR.

Yeah, you're right the FR contains this

CWKOCAN = 1
CDWKOB = 15
CWMDRLKO = 2 for variable compressor

Thanks, I will test this today  :)



Title: Re: HVAC message from CAN in a ME7.5
Post by: davgeek on October 18, 2019, 12:54:04 PM
It didn't work :(