Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS

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Topic: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS (Read 11434 times)

dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #15 on: April 13, 2020, 07:33:44 AM »

Quote from: macxxx on April 13, 2020, 06:49:57 AM

No use one of them - its left rear wheel and left rear wheel ( look at rnsd pinout 26 pin connector )

I looked this RNS-D 26pin connector diagram. It goes to these pins I mentioned (8 and 10).
I attached the diagram of this part. J104 is the ABS module, J503 is the navigation system.

Wires goes from ABS T47 8 and 10 to RNS-D T26 5 and 18.
This is right? Worth a test?


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macxxx

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #16 on: April 13, 2020, 07:55:33 AM »

Yes it should work - connect it to cluster in the place of speed signal from gearbox


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #17 on: April 13, 2020, 10:17:25 AM »

I will try this next weekend. I will report back here.
My need for this is because I bought an 02Q gearbox, that dont has an VS sensor.


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #18 on: April 19, 2020, 05:37:38 PM »

Quote from: macxxx on April 13, 2020, 07:55:33 AM

Yes it should work - connect it to cluster in the place of speed signal from gearbox

I just wired two wires on that pins (8 and 10) on ABS module, hooked up my portable osciloscope, but no signal on either pins (together or relative to ground).
I think I need to change the ABS module coding, to enable this pins output. I guess. Will try soon. Any help is valid.


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aef

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #19 on: April 20, 2020, 02:42:31 AM »

I know someone with arduino/can box in S3 8L DQ250
This will read out Speed from ABS via CAN and send it to the Cluster. You can finetune it too.

regards


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #20 on: April 20, 2020, 04:55:30 AM »

Quote from: aef on April 20, 2020, 02:42:31 AM

I know someone with arduino/can box in S3 8L DQ250
This will read out Speed from ABS via CAN and send it to the Cluster. You can finetune it too.

regards

Thanks man. I have a lot of Arduinos here, I play with them for a while. I will go for this solution if the current I'm trying dont give result.


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #21 on: May 03, 2020, 05:15:35 PM »

Quote from: aef on April 20, 2020, 02:42:31 AM

I know someone with arduino/can box in S3 8L DQ250
This will read out Speed from ABS via CAN and send it to the Cluster. You can finetune it too.

regards

Hey man, can you put me in contact with this guy? I'm reading the CAN messages here, with Arduino. But I'm having trouble decoding the messages.


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BlackT

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #22 on: May 03, 2020, 07:19:51 PM »

What mesage you have trouble with? What you use to reqd CAN?


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #23 on: May 04, 2020, 03:58:24 AM »

Quote from: BlackT on May 03, 2020, 07:19:51 PM

What mesage you have trouble with? What you use to reqd CAN?

I'm using a simple Arduino Nano + MCP2515 setup. Connected to the car CAN, and reading with 125kbps.
I'm trying to get any data from the messages, but my target is to get VS.


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BlackT

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #24 on: May 04, 2020, 06:30:46 AM »

Do you have any filter for mesages?
You can start with RPM, it is at 0x280, LoHi 4,5 byte.
I will check this later to confirm. RPM is easy one to stsrt with beacuse you don't need to move car


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fknbrkn

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #25 on: May 04, 2020, 06:43:33 AM »

Also it's running on a 1mbit


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dal

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	Re: Its possible to take A/C signal from climatronic on me7.5 like get VSS from ABS « Reply #26 on: May 07, 2020, 06:37:55 AM »

Quote from: BlackT on May 04, 2020, 06:30:46 AM

Do you have any filter for mesages?
You can start with RPM, it is at 0x280, LoHi 4,5 byte.
I will check this later to confirm. RPM is easy one to stsrt with beacuse you don't need to move car

Currently no. I will try the RPM message this weekend, based on your informations. I will report back. Thanks....


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