Connected, not recognised, message

[rich]

Hi all, my gen 2 zs ev lr, has " Connected not recognised" error message and car will not start. However, we dont have a cable in it, or trying to charge. Anyone had this error and if so, what was the fix?

 

[Gadget Geek]

Try disconnecting the 12V battery for 10 mins to reset all the modules.

 

[rich]

OK . thanks for your really swift reply . I wouldn't think twice about doing that in an ice vehicle. are there are safety tips for doing it an ev (other than making sure car is powered off).

 

[Gadget Geek]

Just the usual. Disconnect the negative terminal with a 10mm spanner.

 

[rich]

Disconnecting the battery didn't work, but thanks for the suggestion. Had to get MG roadside assistance (AA) out but they couldn't fix it. Had to be towed to local dealership for repair. I will update.

 

[MELLE]

news?

 

[rootes]

Our car had the same issue in June last year, finally got the car back in September last year. Wrote to the dealer asking what had caused the issue and/or been repaired, got no reply.

 

[MELLE]

june to september?

 

[rootes]

Yes, with little or no feedback from the dealer.

 

[MELLE]

Yes, with little or no feedback from the dealer.

Is it possible to know the name of the dealer where it was repaired?
I could try writing an email and asking how they solved it, and help my dealer solve mine

 

[DB Go Rex]

Is it possible to know the name of the dealer where it was repaired?
I could try writing an email and asking how they solved it, and help my dealer solve mine

I don't think it's rocket science. They have a service bulletin that describes the updates that need applying. If that fails, as an official MG dealer they have MG service support on the end of the phone they can use.

If your dealer still can't patch yours with all that, I'd be taking it to another dealer.

 

[MELLE]

I don't think it's rocket science. They have a service bulletin that describes the updates that need applying. If that fails, as an official MG dealer they have MG service support on the end of the phone they can use.

If your dealer still can't patch yours with all that, I'd be taking it to another dealer.

I don't think it's necessary to install updates, I think it's a broken component, the dealer says he's waiting for a replacement but a month has passed

 

[DB Go Rex]

I don't think it's necessary to install updates, I think it's a broken component, the dealer says he's waiting for a replacement but a month has passed

None of the facelift ZS's needed any hardware - it was all software/firmware. If yours does, then it sounds like you have other issues going on.

 

[MELLE]

None of the facelift ZS's needed any hardware - it was all software/firmware. If yours does, then it sounds like you have other issues going on.

I think you're right.

the error message is the same as the photos in previous messages.

It would be interesting to know how they solved it

 

[MELLE]

the problem was solved after more than a month, they say it was a relay and a fuse, but we will never know the truth.

 

[MELLE]

after two days the error returned, disaster

 

[Coulomb]

they say it was a relay and a fuse,

after two days the error returned,

By any chance, are you using a timer, or otherwise mechanically switching off the charge under load? I have this pet theory that such interruptions cause problems, but other than spectacular arcs (not by me), I have not been able to prove it.

 

[MELLE]

By any chance, are you using a timer, or otherwise mechanically switching off the charge under load? I have this pet theory that such interruptions cause problems, but other than spectacular arcs (not by me), I have not been able to prove it.

The error message appears while I'm driving, and when I turn off the car it doesn't start anymore, the 12V battery is new.

 

[Coulomb]

Do you still get the "connected, not recognised" message since the "fix"?

Does the 12V battery report 13.0V or higher when driving? I'm wondering if your DC-DC is not charging the 12V battery. That can cause all sorts of seemingly unrelated problems.

 

[MELLE]

Do you still get the "connected, not recognised" message since the "fix"?

Does the 12V battery report 13.0V or higher when driving? I'm wondering if your DC-DC is not charging the 12V battery. That can cause all sorts of seemingly unrelated problems.

Yes, when the message appears the 12V battery shows 11.8V, it is a false data because the tester writes 12.4V. In my opinion this blocks the starting, but the dealer saw this, and it's not a small dealership.