Opel Meriva B and CAN module GMF6.20

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FunnyBug
Posts: 2
Joined: Sun Sep 21, 2025 2:20 pm

Opel Meriva B and CAN module GMF6.20

Post by FunnyBug »

I'm running an Android head unit from Witson (model DHV) in an Opel Meriva B MY2010.
It was delivered with a CAN module from Raise, but that module doesn't work well.

I had the chance to test a Hiworld GMF6.20 CAN module yesterday and it works MUCH better.
I encountered only the following problems:
1.) the buttons on the steering wheel and the center control panel do not work as expected.
A few buttons work as expected, most buttons are assigned/mapped incorrectly and a few buttons seem to be non-funtional. I assume the latter is an assigment/mapping issue, too.
2.) when switching from "ACC ON" to "Engine Start" without a stop at "IGNITION ON", the module starts beeping for a long time (13 times in ~10s).
3.) when switching the cars' light on/off, the Air Conditioning dialog pops up for no reason
4.) the Air Conditioning dialog shows values for a 3rd/rear climate zone, which is not available in this model.

Is there anything I can do/provide so that these bugs can be fixed ?
Is the button assignment/mapping done by/in the CAN module or is this something the head unit manufacturers need to do ?
Unfortunately, the head units' Steering wheel buttons learning app is non-functional with both CAN modules...

Hints are welcome. Thanks !

Additional info:
The configuration dialog of the head units' OS looks the one used by Fyttek head units.
Only a single generic car model profile is provided in the settings for Hiworld CAN boxes + GM cars.
FunnyBug
Posts: 2
Joined: Sun Sep 21, 2025 2:20 pm

Re: Opel Meriva B and CAN module GMF6.20

Post by FunnyBug »

My own module arrived today and I can confirm the issues listet above with this one.
These are observed with the generic profile "GM/Chevrolet / ALL / Hiworld".
But I just noticed that down the long list a Meriva B specific profile exists ("Opel / Meriva B / 2010-2024").
Using this profile, the steering wheel buttons work, with the exception of the "mute/hangup" button.
Unfortunately the center control panel doesn't work anymore as expected. :-(
When entering the car, illumination stays off and the panel buttons don't work. After 1-2 minutes, the panel suddenly starts to work.
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