bad elm response wrong response cfc0 unknown

[mrhappychappy83]

Hi there, I too am trying to activate Android Auto in my Renault Megane III with R-Link 1. I have followed all steps, made the modified cable, and my OBD scanner seems to be communicating with the ECU but not properly. When I try to write the new Navigation settings, I get the error in DDT4All which reads: "bad elm response wrong response cfc0 unknown".

I have no idea what this means or what could be causing the problem. Can anyone help? Attached are the log files also. Appreciate your time in advance.

elm_ddt_log.zip

[mrhappychappy83]

BTW, my R-Link is updated already to the latest version

[cedricp]

It looks like a bad ELM327 clone... Did you try to start a benchmark on the first window ? If it ends up with "incompatible ARM core", you'll need to get a real ELM with PIC18F25K80 chip.

[mrhappychappy83]

Thanks for the fast reply, Cedric!I ran the benchmark test blue and got 0 of 95 successful and the incompatible ARM core message :( Just to confirm, when I run this test, is ok if the cable is not connected to the car? I only connected to the computer by USB.

Sent from my Samsung Galaxy smartphone. -------- Original message --------From: Cedric PAILLE notifications@github.com Date: 8/5/18 10:51 pm (GMT+10:00) To: cedricp/ddt4all ddt4all@noreply.github.com Cc: mrhappychappy83 dariopaolini@me.com, Author author@noreply.github.com Subject: Re: [cedricp/ddt4all] bad elm response wrong response cfc0 unknown (#55) It looks like a bad ELM327 clone... Did you try to start a benchmark on the first window ? If it ends up with "incompatible ARM core", you'll need to get a real ELM with PIC18F25K80 chip.

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[cedricp]

Yes, you can do the test disconnected from the car. Your interface is definitely not the good one.

[mrhappychappy83]

OK that's a shame but thank you for helping me work this out. I will buy one with the proper chip and try again.

On May 09, 2018, at 06:56 AM, Cedric PAILLE notifications@github.com wrote:

Yes, you can do the test disconnected from the car. Your interface is definitely not the good one.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[fd007s]

I also have a clone chip " incompatible ARM core message 90/95" . I managed to resolve "bad elm response wrong response cfc0" by changing the driver. My chip is pl-2303hx Now i have a new problem: I have a red column with " No data" after i enter on dt4all- megane 3 -navigation-...etc. I can't flash anything. All i get is: "Sending ELM request:2E 6C 1C E4 ELM response :" Nothing happens. I don't know what seems to be the problem: wrong chip, wrong wiring. So i made a test: i connected the elm device to laptop but not to car. i had the same result "No data" Is there a way to check the cable or the connection between elm device and car? Sorry for my bad english.

[Furtif]

https://github.com/cedricp/ddt4all/issues/834