Dear Roman, I still cannot communicate with gateway, only engine and comfort module, on k-line. nothing on can. yes, in the engine mvb i can see everything communicating. if i disconnect anything from can, i get the message of no communication, so it's "real". obd plug problem is ruled out, i have b...

@Rfmotors1 It's the version with J533 integrated into J519. The fact that I have no errors, everything is working and on channels 125 and 126 , ecu shows good can communication with every module, makes me certain that the gateway is alive. Thank you for the diagram, I have elsa also. I've listed all...

Trying to wrap my head around this. I have no can bus communication. According to elsawin, the diagnostic can lines are switched, which I understand opens when interrogated, is closed otherwise. The internal can is working fine, both drive and comfort. basically the only problem is that the gateway ...

Kim, I did. the signal attached is a communication attempt in vcds with the gateway module, pico pins inserted into the back of the obd plug. Update: today I could communicate with the 46 comfort module. It's supposed to be routed through the gateway, but then why won't the gateway talk? Edit: just ...

Dear Kim, I'm happy at least someone enjoys this :D Here is a 200ms communication attempt with the gateway, taken at obd plug. Dear wiki38andy, I don't understand. you're saying to unplug the xs6 plug from gateway and check system reaction? Edit: I'm getting http errors when trying to attach the log...

It looks like CAN HI is shorted to ground. Is there any continuity between any CAN pins 6/14 and ground? Disconnect the CAN gateway connector with CAN lines coming from OBD pin6/14 and post the measurement. Do the same on good car. The wires on pin 6/14 going to the OBD is about a 50 cm wire, strai...

I'm back with more measurements. I'm hoping someone can decode them or make more sense of them. I got the loan car again for the day so I took the same measurements on both: can high and can low, pins 6 & 14 on obd plug, earth to battery negative. Since the can gateway is switched type, i have measu...

wiki38andy wrote: ↑

Wed Apr 10, 2024 9:41 pm

Remove pin 7(K line) from OBD socket so as to have CAN comm only with CAN gateway.

there is no can comm. at all
https://ibb.co/K6F5fbr][img]https://i.ibb.co/K6F5fbr/vcds-test.png[/img">

The CAN signal on OBD socket comes from interface. Back probe CAN gateway pins for two wires coming from OBD pins 6/14 to check if you have the same signal from interface. As you have already swapped CAN gateway module there should be a harness/pins issue, only. Nothing to do with any other modules...

There is communication between the modules. They see each other, no communication errors either. The only problem is, that I can't communicate with on can for some reason, only K-line with engine. pins are all OK. Wiring ok, pins ok, continuity ok, modules ok.
I just can't explain it anymore