Betatest - Renault ZE Services Binding

sihui · September 22, 2025, 9:49am

I am seeing this since a couple of weeks, but only temporary for one or two hours. After that updates are coming in again.

I saw this yesterday or the day before yesterday, but at the moment log is clean and updates are coming in.

Doug_Culnane · September 22, 2025, 10:04am

Thanks for the feedback. That is 3 installations I know of with this problem, so I guess all have this issue.

It would be interesting to know if the App works when the binding does not? There might be an issue between the car and the Renault server which I can not fix. However if the logs show an distinct error and the app works then i can try to fix with a catch and re-login or something…

sihui · September 22, 2025, 10:45am

IIRC the app did not work either, but I will pay more attention to that if the issue occurs again and report here.

sihui · November 17, 2025, 10:53am

Several times in the last weeks I got

2025-11-17 09:01:50.677 [WARN ] [nding.renault.internal.handler.RenaultHandler] - Error My Renault Http Session.
org.openhab.binding.renault.internal.api.exceptions.RenaultUpdateException: java.util.concurrent.ExecutionException: org.eclipse.jetty.client.HttpResponseException: HTTP protocol violation: Authentication challenge without WWW-Authenticate header
	at org.openhab.binding.renault.internal.api.MyRenaultHttpSession.getKamereonResponse(MyRenaultHttpSession.java:325) ~[?:?]
	at org.openhab.binding.renault.internal.api.MyRenaultHttpSession.getAccountID(MyRenaultHttpSession.java:192) ~[?:?]
	at org.openhab.binding.renault.internal.api.MyRenaultHttpSession.initSesssion(MyRenaultHttpSession.java:81) ~[?:?]
	at org.openhab.binding.renault.internal.handler.RenaultHandler.getStatus(RenaultHandler.java:252) ~[?:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[?:?]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358) ~[?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
	at java.lang.Thread.run(Thread.java:1583) [?:?]
2025-11-17 09:01:56.006 [WARN ] [nding.renault.internal.handler.RenaultHandler] - Error updating HVAC status.
org.openhab.binding.renault.internal.api.exceptions.RenaultUpdateException: java.util.concurrent.ExecutionException: org.eclipse.jetty.client.HttpResponseException: HTTP protocol violation: Authentication challenge without WWW-Authenticate header
	at org.openhab.binding.renault.internal.api.MyRenaultHttpSession.getKamereonResponse(MyRenaultHttpSession.java:325) ~[?:?]
	at org.openhab.binding.renault.internal.api.MyRenaultHttpSession.getHvacStatus(MyRenaultHttpSession.java:228) ~[?:?]
	at org.openhab.binding.renault.internal.handler.RenaultHandler.updateHvacStatus(RenaultHandler.java:275) ~[?:?]
	at org.openhab.binding.renault.internal.handler.RenaultHandler.getStatus(RenaultHandler.java:265) ~[?:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[?:?]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358) ~[?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
	at java.lang.Thread.run(Thread.java:1583) [?:?]

but it always recovered by itself.
So I am not worried about this, just for information

sihui · November 18, 2025, 1:30pm

I just got an email from Renault saying they will shortly using 2FA (extra code via email) on accounts and web services.
Let’s see what happens to the function of the binding, then

Bloodboy · November 18, 2025, 1:54pm

Me too

thefathefa · November 21, 2025, 11:05am

and me too…

macek · December 21, 2025, 5:08pm

Will be upgrade for new model cars ?? ( Renault 5 E-Tech in my example) . Everything is working, beside HVAC. Debug:

[DEBUG] Kamereon Request: https://api-wired-prod-1-euw1.wrd-aws.com/.../actions/hvac-start
Response: [400] Bad Request
{“type”:“FUNCTIONAL”,“messages”:[{“code”:“err.func.wired.invalid-body-format”,“message”:“Body has at least one wrongly formatted value”}],“errors”:[{“errorCode”:“err.func.wired.invalid-body-format”,“errorMessage”:“Body has at least one wrongly formatted value”}],“error_reference”:“FUNCTIONAL”}

shuo · December 28, 2025, 11:11am

Hey all.

I have conntected my Zoe successful with the renault binding.

All is working fine, except “battery available engergy”. It shows “NULL”.

Does anybody have the same problem?

BTW. In the past I remember having es well external and internal temperatures. Is this not supported anymore?

Wolfgang1966 · March 27, 2026, 7:44am

Good morning everyone, I noticed that since 24th of March the values of my Zoe are no longer updated (especially SoC). As the MyRenault App also shows outdated values, I assume that this is not a problem of the binding, but one of the Renault backend. Just for curiosity: Does anyone here see similar problems?

I will contact Renault support now.

Doug_Culnane · March 27, 2026, 7:57am

You are correct that if the App and the binding are both not working then it is the Renault Backend.

From my observations the Renault Backend can fail temporarily, but if it goes on longer than a few days or some “services” do not work then the My Renault account might be the issue.

Check the My Renault website to see if your account need to be renued.

Wolfgang1966 · March 27, 2026, 8:00am

Hi @Doug_Culnane , just checked my account and it says that I have booked all available services. I now opened a support case at Renault, let’s wait for the response. I keep you updated.

Doug_Culnane · March 27, 2026, 8:02am

Not sure why the battery available energy is not working. You would have to set logging to debug and inspect the messages from the backend so we can see if and what values are delivered.

External temperatures never worked on my car/account.. The internal temperature is a setting for the HVAC thermostat but I am not sure if this has any affect.

thefathefa · March 27, 2026, 8:14am

In my case, since March 22nd, the binding can’t connect and the app says I need to re-enable “data sharing” from the car…

Not sure if it is similar to your problem?

sihui · March 27, 2026, 8:40am

That’s what I am seeing, too. (ZOE 10/2020)
But I had never outages for more than a couple of hours.

Unfortunately I never could make the hvac channel working, but that is another story

Doug_Culnane · March 27, 2026, 11:42am

HVAC stopped working on our car too but I think this is because of the account and the services available on it. However I am not sure.

sihui · March 27, 2026, 1:22pm

For me it still works with the Renault App on Android and also with an external php script (GitHub - db-EV/ZoePHP: Unofficial PHP client for Renault Zoe · GitHub) as a workaround.
It is called from openHAB through executeCommandLine and cURL. In the php code the url is

echo '<TR><TD COLSPAN="2"><A HREF="'.$requesturi.'?acnow">'.$lng['Start preconditioning'].'</A></TD></TR>'."\n";

If you have some spare time you maybe could take a look at the Renault binding debug log :

events.log:

2026-03-27 14:07:05.969 [INFO ] [openhab.event.ItemCommandEvent               ] - Item 'ZOE_ac' received command ON (source: org.openhab.ui.basic$wss3:030801=>org.openhab.core.io.rest)
2026-03-27 14:07:05.994 [INFO ] [openhab.event.ItemStatePredictedEvent        ] - Item 'ZOE_ac' predicted to become ON
2026-03-27 14:07:06.016 [INFO ] [openhab.event.ItemStateChangedEvent          ] - Item 'ZOE_ac' changed from OFF to ON (source: org.openhab.core.autoupdate.optimistic)
2026-03-27 14:07:06.039 [INFO ] [openhab.event.ItemStateChangedEvent          ] - Item 'ZOE_ac' changed from ON to PENDING (source: org.openhab.core.thing$renault:car:zoe:hvacstatus)
2026-03-27 14:07:38.169 [INFO ] [openhab.event.ItemStateChangedEvent          ] - Item 'ZOE_ac' changed from PENDING to OFF (source: org.openhab.core.thing$renault:car:zoe:hvacstatus)

debug log:

2026-03-27 14:07:07.246 [DEBUG] [ing.renault.internal.api.MyRenaultHttpSession] - Kamereon Request: https://api-wired-prod-1-euw1.wrd-aws.com/commerce/v1/accounts/1234-1234-1234-1234/kamereon/kca/car-adapter/v1/cars/YXZYXZYXZYXZYXZ/actions/hvac-start?country=DE Response: [400] Bad Request
{"type":"FUNCTIONAL","messages":[{"code":"err.func.wired.invalid-body-format","message":"Body has at least one wrongly formatted value"}],"errors":[{"errorCode":"err.func.wired.invalid-body-format","errorMessage":"Body has at least one wrongly formatted value"}],"error_reference":"FUNCTIONAL"}

If you need the full debug log with “GigyaApi jwt” and “personId ID” I could send that via PM.

I am on openHAB 5.2.0.M2.

Wolfgang1966 · March 27, 2026, 2:38pm

Found at least one reason: Zoe system info showed no network connection, did not even show IMEI info. This led me to the assumption that the TCU needs a reset; this can be done by pulling fuse F31 (there is a youtube video showing where it is placed; it is a 10A fuse, 2nd row from the left, 2nd position from the bottom). After pulling it for 1 min and putting it back in network connectivity came back and IMEI is also shown. Now I wait for the SoC to be updated in the backend, which might take a couple of minutes.

Wolfgang1966 · March 27, 2026, 2:45pm

Backend is updated now also

Doug_Culnane · April 14, 2026, 9:29am

Thank you @sihui for this bug report. I finally debugged this properly and have created a PR. The start HVAC works with this fix.

github.com/openhab/openhab-addons

[renault] fix hvac start data format bug. (#20573)

main ← dougculnane:main

opened 09:26AM - 14 Apr 26 UTC

dougculnane

+2 -2

Starting the Renault Car HVAC pre-heat function calls the Renault API. This was… failing with an error: " [400] Bad Request {"type":"FUNCTIONAL","messages":[{"code":"err.func.wired.invalid-body-format","message":"Body has at least one wrongly formatted value"}] " The targetTemperature is a number and so should not have quotes. This PR removes these quotes and the HVAC started in my test.

Sorry it took me a long time to get round to this.