drienties wrote: ↑Sun Oct 09, 2022 3:41 am
Progress, repinned the original connectors according to Danep82's diagram.
Only thing missing is the extra ground pin on the small connector. fired up the car and radio anyway to check.
Radio powers on to the locked red notice and i'm unable to get into the diagnostics menu. CAN network seems to work since i'm getting my menu items back in the dash which were missing since the old radio broke. had a split second of satic noise on startup from the FM radio as well.
i'll sort out the ground pin and then it's off to the dealer to see if they want/can unlock my radio.
leafspy does trow a evc-279 DTC, i will check all my pinning again before going to the dealer. But so far it's looking ok.
What i did notice was that my car is missing the pins for the TCU Tel pins, not sure if this is a model specefic thing. i can remotely control my HVAC etc so assume it has a TCU
I think i also figured out your extra PCB in the radio: https://zelemar.eu/nissan-can-filter-installation/
looks like it is indeed to bypass the vin coding. might be a plan B if unlocking via the dealer is not possible/to expensive
Wow, that is great!!! How did you get the pins out of the connector? Did you push them out with a tool or something? That's some Houdini stuff right there!
Based on my tests, the extra ground pin is unnecessary on the small connector, as there is continuity between the metal chassis of the display and that pin. So you can just run a cable from the chassis of the display to some ground point in the car. I ran it to the metal railing that the display assembly is screwed onto with the four screws. But hey - take it with a grain of salt - I'm the guy who managed to destroy their display.
As for the ignition cable that now needs to go from the big connector to the small connector, were you successful with that? It was so hard to tap into that pin on the small connector on my car that I was contemplating just running a cable directly onto the PCB of the display, bypassing the connector entirely.
EVC-279 indeed seems to be an error code received from the AV Control Unit.
As for the TCU pins, that is strange. Was your original unit with the 7" display? Not the 5" one? I am wondering if the TCU communicates via CANbus on your car. Not sure why it would do that though. Yours is 2018 right?
Great find with the Zelemar shop!! This looks to be exactly what was installed on mine. I was wondering how the previous owner was able to install this kind of microcontroller inside it, but it makes more sense now that it's an off-the-shelf preprogrammed PCB
I think the dealer should be able to get the display coded to your car, you just have to bring both keys with you. They charge for either 30 mins or 1 hour of labor at least here for the operation, 85 euros. So more expensive than the Zelemar CAN filter, however you might have to visit the dealer afterwards anyhow, if your new AV Control Unit wasn't in a Tekna previously. Do you happen to know the VIN of the car it came from in Lithuania? Wondering if with that you could check if it was a Tekna, and that thus there might be no need to involve the dealer.
As for my unit, it's completely toasted unfortunately. I have now decided that if you're able to get yours working with the 360° cameras, I'm buying another one and making another adapter cable from the ground up. Fingers crossed for you!!