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Post by indiumgraugti on May 10, 2020 16:46:27 GMT
Hello everyone,
I'm trying to enable the sunroof tilting directly from open position.
I need to do:
Control Unit 09
Subsystem PSD 8V3 959 591 A
Activate Byte 1 Bit 1 and 2
How do I access to this subsystem via obdeleven (iOS Version)?
Thank you in advance!
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Post by dv52 (Australia) on May 10, 2020 22:39:48 GMT
^ ^^^ The module for the sunroof on MQB platform vehicles (like your Audi A3 8V) isn't connected to the normal CAN network. Instead, the sunroof module uses what's called "LIN" (Local Interconnect Network) bus. LIN protocol uses a single wire for communication and the modules can be view as being a sub-system (or a slave) to a normal master CAN module. LIN modules communicate at a lower speed and they use 10 x bits/field with up to 8 x fields per message. To access the sunroof module, select the central electrics module @ address hex09 - then select subsystem option - then select the sunroof module. Here's a set of screens to access the RLFS module which is the same as the sunroof module:  Don |
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Post by indiumgraugti on May 11, 2020 4:46:53 GMT
Hey Don,
thank you for your fast reply.
As far as I can see, this option is still not available for iOS. I'll have to wait until its available.
Mou
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Post by indiumgraugti on May 26, 2020 6:08:36 GMT
Don,
the new iOS Version does now support subsystem coding. As I described in my first post, I need to change the Bit 1 and 2 of Byte 1 in PSD 8V3 959 591 A. Is it the same here?
I looked into my RLFS and I have hex 00 A8 EE (already coded over VCDS). So I need to change the 00 A8 DD to EE, right?
Thank you in advance.
Regards,
Mou
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Post by dv52 (Australia) on May 26, 2020 7:09:37 GMT
Don, the new iOS Version does now support subsystem coding. As I described in my first post, I need to change the Bit 1 and 2 of Byte 1 in PSD 8V3 959 591 A. Is it the same here? I looked into my RLFS and I have hex 00 A8 EE (already coded over VCDS). So I need to change the 00 A8 DD to EE, right? Thank you in advance. Regards, Mou Mou: not quite - as I said in my reply: Here's a set of screens to access the RLFS module which is the same as the sunroof module: What I meant by these words is that the sun-roof module is like the RLFS (in that it is a sub-system of the hex09 module), but it's separate to the RLFS - so DON'T select the RLFS When you select the subsystem option on your car (i.e. the second screen in my pictorial instruction), you should see the WWS and RLFS modules AND you should also see a specific module for the sunroof which is called J245- like this (picture from smartie): You need to select the J245 module - not the RLFS module.
The other comment I would make is regarding your calculation for changing Byte1, Bit 1 and Bit 2. If we assume that the long code for J245 is 18 18 01 - then the arrangement is like this:
| Byte | HEX
| BINARY | 0
| 18 | 00011000 | 1
| 18
| 00011000 | | 2 | 01
| 00000001 |
Binary values are read from RIGHT to LEFT - so, Bit 0 is the extreme right-most digit. Bit 1 is therefore the digit to the LEFT of Bit 0. I have highlighted Byte 1, Bit 1 and Bit 2 in blue on the table above. For my example and after the changes are made, the Binary value of Byte 1 should be 00011110 - which has the equivalent value of hex1E. So the long code string for the sunroof module in my example after the changes are made should be 18 1E 01. Don
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Post by vwjap on May 26, 2020 8:25:52 GMT
Subsystems is on 1.2.1 Wasn’t on 1.1.9  |
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Post by vwcalifornia on Jun 15, 2020 10:18:31 GMT
Hey, did anyone get it done with the Android app? Would the steps be the same?
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