Steering wheel and OEM reverse camera not working with android headunit - Android Head-Units

Hi, so recently bought an andoird justnavi head unit from aliexpress ( https://www.aliexpress.com/item/1005002055611288.html?spm=a2g0o.order_list.0.0.21ef18022l8yMV). It works fine as a display for apple carplay and music etc but i still cannot get the reverse camera on my car and the steering wheel buttons to work with it even though i bought a canbus decoder from justnavi themselves. The volume up and down buttons work on the steering wheel but no other button does. I have tried to update the MCU several times but after it restarts the software is still the same version which is frustrating. Does anyone have a fix to this or had a similar problem before. Please let me know. Thanks .

Not MTCB, requested moderator move post to dumping thread android head units

Related

Steering wheel control mapping help.

Evening all.
I have an xtrons 4.4 HU, it's fitted with a canbus decoder in and Audi A4.
The HU came with the steering wheel controls preset, I've tried to map them to add my own touch but I can't. When I go into the steering wheel control option, I operate a key and he screen does not recognise this, I've also tried highlighting a button then trying to use a steeeing wheel button and it still doesn't recognise it.
What ami missing guys? All the YouTube and Google tutorials say to do it how I am!
Thanks.
I have the same issue on a 2012 Mazda 3, the head unit only recognizes a direct voltage input from the steering wheel buttons, yours is probably controlled by the CANBUS, with the head unit, there should be 2 wires (Key1 and Key2), they should be connected to the car wiring I believe. Please wait for someone with more experience to confirm.
Sent from my SM-N910F using Tapatalk
From what I've read they are connected through canbus but I have no idea how to work around this. Thanks.
Anyone? Tried downloading the rk1188 headunit app but it does nothing!
interested about!
Anyone please?

Steering wheel control problem between Autoradio 8227L and Toyota Yaris II series

Hi everyone, I hope to be writing in the appropriate section.
I bought an 8227L android car radio:
- http://imageupper.com/s12/1/6/M1568803747176376_8.jpg
- http://imageupper.com/s12/1/6/M1568803747176376_6.jpg
And I have a Toyota Yaris II series:
- http://imageupper.com/s12/1/6/M1568803747176376_7.jpg
This morning I successfully mounted the 8227L stereo in my car
- http://imageupper.com/s12/1/6/M1568803747176376_5.jpg
and everything works fine except the steering wheel controls.
The old original car radio (where steering wheel controls worked) was so connected:
- http://imageupper.com/s12/1/6/M1568803747176376_4.jpg
And when mounting the new autoradio 8227L, I just inserted the cables in the appropriate adapters.
The fact is that as soon as I enter the steering wheel configuration menu, I press START and select a command to associate with a physical steering wheel button, I get an error:
- http://imageupper.com/s12/1/6/M1568803747176376_3.jpg
even trying to reboot:
- http://imageupper.com/s12/1/6/M1568803747176376_2.jpg
- http://imageupper.com/s12/1/6/M1568803747176376_1.jpg
I still get the same error.
Can u help me in some way? Thank u all in advance!
As a first step, I would put a voltmeter onto the sense wires while pressing each of steering wheel buttons- to confirm that different voltages are available for the head unit to learn
This wil prove or otherwise that the wiring is in order.
Hi Pxdev,
First of all thank you very much for your attention.
At the moment I do not have the possibility to use a voltmeter, however I am sure that the steering wheel controls work (tested up to a few hours before the installation of the new radio) and also the installation of the new radio has simply consisted in disconnecting the 3 connectors ( http://imageupper.com/s12/1/6/M1568803747176376_4.jpg the blue and the two whites) visible in the picture and insert them in the appropriate adapters of the new car radio and insert a single connector in the special housing and everything worked, except, of course, for the steering wheel controls. Is there anything else I could try to do? Many thanks in advance.
Hi,
Have you bought it with the Canbus and cables for your car? I have the exact same unit and the steering wheel works well.
I get the same error , found a video saying ground one wire to radio ground and any one key wire ground radio but doesn't work. If anybody has any solution or troubleshoot guide please let me know .
Checked voltage , voltage from headunit around 3.5v , checked resisitance from each key shows different value for each key. Now what to do?
Did you find a solution to your problem as I'm having the same problem with mine. Same head unit with a Raise can bus installed. The steering wheel controls worked fine when I first bought the car but I decided to delete some of the unused apps and since then the steering wheel controls don't work. I can't even remember the name of the app I deleted. Any help would be grateful.

PX5 Steering Wheel controls

Hello,
I bought an Android unit on July and after some troubleshooting everything was working fine. Now I have a problem. I have a Renault Clio 4 Pre-Restyling and steering wheel controls are managed by CAN-BUS. The problem is that Volume controls and radio station change don't work if I don't turn on Head Lights. Other canbus functionalities seem to be working fine. For example when I open doors I can see them on my video. Could it be the CanBus decoder faulty or I have to check some wire connection? Thank you
Anyone can help me? Do you need any further information? Is it possible to know the pinout of CANBUS connector? Usually is 20 pin.

Chinese Headunit Canbus

Hello...
Not sure if this is the correct forum for this or not so apologies.
I've just bought and installed a chinese Android Auto head unit into my Ford S Max. I think the unit is an XY Auto 3.1 8227L, nothing on the box but this is what is specced in the system info. I've purchased a Connects2 Canbus adapter to use with this so that i can retain steering controls etc.
Everything is all wired up correctly and working but I can't find Connects2 in the Canbus setup list or a Ford S Max under any of the other canbus manufacturers. Does anyone know how I can sort this out?
Other issue is that I no longer get my parking sensor beeps - does this go through the canbus as well?
Not fitted a aftermarket unit in years so no real experience with canbus setup.
Thanks
You need to have a look at the right forum... I asked a mod to move your posting to the right one: https://forum.xda-developers.com/android-auto/android-head-units

Help Needed with CanBus decoding/Key1 Button Mapping

Hello,
I am new to this and read alot, but still i hope i don´t do this wrong, please forgive me if I do.
- I have a Mustang 2010 Base model (no Buttons on Steering Wheel)
- I have this Android Head Unit: https://www.zwnav.net/products/tesl...4-gps-navigation-audio-radio-stereo-head-unit
- I bought these Physical buttons and connected them to "Key1" Ground and ACC: https://www.joyingauto.eu/joying-ne...oller-universal-remote-for-android-radio.html
My Question: I don´t get them to work AT ALL. No i saw something that might be the problem:
"The universal Steering wheel control remote only compatible with the universal head unit, it cannot work with the special radio that comes with the canbus adapter."
This might be the problem? As my Unit has a CAN-Bus Decoder for Ford. Is there any way you can think of to make these Buttons work? Any help would be great!
Wishes,
Maria
some head units won't use key 1/key 2 if canbus is present, I'd message seller for advice and research px6 head units as someone may have made a mod to allow it.
ALso, if you have multimeter, tests the resistance across key1 and gnd when you press a steering wheel button it should change on button press, if not, might just be dead battery (or if the battery has an isolator tab)
​
Thanks for the answer! The Battery is ok. The chineese seller is not answering at all (sadly).
What do you mean with: "nd research px6 head units as someone may have made a mod to allow it."
Is there a special subforum for PX6 units? I am new to this maybe i did oversee that.
Thanks in advance!

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