Intermittent red warning J1.2

[Truthteller]

Thanks everyone for their feedback and help.

Im seeking guidance where i can.

As above, I think its blatantly obvious the fault was there at point of sale, and its now down to putting that across in the correct manner to the dealer / manufacturer / finance company.

The supplying sales manager is disputing that the fault was there from new, I think this is an absolutely ridiculous stance, but he's obviously trying to limit the financial responsibility of the dealership.

370 miles and 50 days is new, and I stress, id driven a max of around 200 of those miles. This is not wear and tear.

If they have now diagnosed a faulty part causing the warning, that was faulty at sale, ergo the car was faulty and not fit for purpose.

I have a fairly long forum post about my Macan 4 EV on the other forum that you might want to read. I’ve had the same issues as you with my brand-new car, and I’ve been dealing with them since the first fault appeared after just 9 days. My car was ordered early and was delivered as one of the very first Macan 4 EVs in Sweden (October 2024).

Please have a look at that thread and see if it can help you in any way.

https://www.macanevowners.com/forum...-8-months-at-the-dealership-for-issues.22542/

Wishing you the best.

Sponsored

 

[4sCT21]

I have a fairly long forum post about my Macan 4 EV on the other forum that you might want to read. I’ve had the same issues as you with my brand-new car, and I’ve been dealing with them since the first fault appeared after just 9 days. My car was ordered early and was delivered as one of the very first Macan 4 EVs in Sweden (October 2024).

Please have a look at that thread and see if it can help you in any way.

https://www.macanevowners.com/forum...-8-months-at-the-dealership-for-issues.22542/

Wishing you the best.

Thank you.

 

[4sCT21]

Here's the log of my events.

TAYCAN ELECTRICAL WARNING

Tuesday 18th FEB :- First event occurs whilst driving on the motorway. Approximately 370 miles covered on the car. First long journey in the vehicle, fault appears after 87 miles covered. Day 50 of ownership.

Called to report to supplying OPC and spoke to sales dept. Agreed to contact Porsche assist if happens again. Called service dept on the 19th to log the warning.

20th MAY 16:40 pm :- 1857 miles repeat event. Porsche assist called, could not communicate with the car or diagnose.Advised to take to dealer for diagnosis.

29th MAY 09:59 am :-Warning message whilst driving locally. First occurrence on a short journey.

3rd JUN :- First visit to Porsche (local). Diagnosis showed no historical or active codes. Software updates performed and recall work carried out.

15th SEPT :- Motorway 50mph, usual issue.

15th OCT 12:49 pm :- Motorway 60 mph, usual issue.

17th OCT 09:15 am :- Motorway 70 mph, usual issue.

22nd OCT 17:15 pm :- Usual issue.

01st NOV 18:15 pm and 18:54 pm :- First double event, usual issue.

05th NOV :- Usual message. Took to Porsche on way home from work for them to see the active fault. Photos taken and appointment booked.

Between the 15th Sept and 5th Nov, ive made a total of 17 calls to the service department at my local OPC, over a total of 9 individual days, in order to report or talk about the ongoing events.

NOV 20th :- Leave car at dealership for diagnostic.

NOV 28th :- Recieve call from local OPC, can not release car to you, 2 cells prematurely degraded. Advice sort from Porsche regarding fix.

DEC 8th :- Car fixed, able to collect. Notified drained battery to 4%, then recharge to 100%, no faults, considered fixed.

DEC 12th :- Collect car.

Dec 16th 0508 am :- First event post second diagnose and repair at Porsche OPC (local). Contact dealer to report and state my displeasure and lack of faith in the dealership to fix the car. Dealer ask if i am intending to reject the vehicle, and if so to contact my supplying dealer. OPC state they are not happy for me to drive the car.

DEC 17th :- Private message to my salesman at supplying dealer explaining the situation, and my intent to reject the car.

DEC 23rd :- Porsche assist will not collect car to transport to supplying dealer without active fault. I notify supplying dealer and book in for the car to be diagnosed (at their request). I state im not taking legal responsibility for the safety of the car given its HV battery issues.

Dec 30th 1150 am :- Leave car with Porsche (Supplying dealer).

 

[D00notD00d]

@4sCT21 @J89taycan
You should consider reporting this to the DVSA for review as a potential safety defect. It occurs at motorway speeds. If it is associated with a cell problem it could be a fire risk as with the j1.1 LG manufacturing defect.
I’ve always wondered why there was no j1.2 monitoring sw recall, and if the alerting was present from first production, why it took so long for Porsche to extend that to j1.1.

https://www.gov.uk/vehicle-recalls-and-faults/report-a-serious-safety-defect

In support you could also email a summary and a link to the information in this thread to
[email protected]

The j1.1 HV cell potential manufacturing defect risk applied to the entire production set from 2020 to 2024. What manufacturing changes occurred to prevent the risk for j1.2 production from 2024?

 

[prj]

@4sCT21 @J89taycan
You should consider reporting this to the DVSA for review as a potential safety defect. It occurs at motorway speeds. If it is associated with a cell problem it could be a fire risk as with the j1.1 LG manufacturing defect.
I’ve always wondered why there was no j1.2 monitoring sw recall, and if the alerting was present from first production, why it took so long for Porsche to extend that to j1.1.

Because the J1.2 uses completely different cells, and the monitoring was there from the start.

 

[ct14garage]

This isn't about the HV battery. It's an issue with the 12V system. Either DCDC or 12V Battery or 12V Battery Sensor

 

[4sCT21]

This isn't about the HV battery. It's an issue with the 12V system. Either DCDC or 12V Battery or 12V Battery Sensor

Thanks for the comment. If its to do with the 12v, why would my local OPC be advised by porsche to concentrate on the HV battery, and carry out a drain and cell rebalancing? They did identify to degraded cells after all.

Obviously I have no idea, im just the unfortunate customer.

Now the supplying dealer are saying gateway controller.

My gut feeling all long is none of them truly have a clue, and are clutching at straws.

Also could the 2 degraded cells and red warning be 2 separate issues?

Once again, thanks all. I just want the issue to be done with, 12 months of wasted money.

 

[ct14garage]

Thanks for the comment. If its to do with the 12v, why would my local OPC be advised by porsche to concentrate on the HV battery, and carry out a drain and cell rebalancing? They did identify to degraded cells after all.

Obviously I have no idea, im just the unfortunate customer.

Now the supplying dealer are saying gateway controller.

My gut feeling all long is none of them truly have a clue, and are clutching at straws.

Also could the 2 degraded cells and red warning be 2 separate issues?

Once again, thanks all. I just want the issue to be done with, 12 months of wasted money.

Because they don't have a clue

 

[4sCT21]

Because they don't have a clue

This is why I have given up all faith in it being fixed, and want rid.

I also got the impression my local OPC were happy to not see it again.

I could be going round in circles and spending more and more money with no car on my drive.

 

[ct14garage]

If you read the fault codes I would know in seconds where exactly the problem is

 

[Tooney]

"Power supply needs vehicle to be ready for operation, ....".

WTH does that phrase even mean?
Is it supposed to be 'vehicle needs power supply'?
Incompetent.

 

[4sCT21]

"Power supply needs vehicle to be ready for operation, ....".

WTH does that phrase even mean?
Is it supposed to be 'vehicle needs power supply'?
Incompetent.

Exactly, I haven't got a clue!

I have 5 photos taken on separate occasions (out of the 11+ events) and the messages are jargon.

Post update last june, the message wording changed slightly.

 

[Tooney]

Exactly, I haven't got a clue!

I have 5 photos taken on separate occasions (out of the 11+ events) and the messages are jargon.

Post update last june, the message wording changed slightly.

"Driving readiness necessary for power supply, ..."
Well, that clears it up.
Perhaps the red warning message means: "The power button must be pressed to operate the car"?

 

[4sCT21]

"Driving readiness necessary for power supply, ..."
Well, that clears it up.
Perhaps the message means: "The power button must be pressed to operate the car"?

A bit worrying when you're already driving at 70mph!

 

[D00notD00d]

Because the J1.2 uses completely different cells, and the monitoring was there from the start.

I’ve not been able to find any detail describing the j1.2 cell and monitoring changes. Grateful if you could share some references. How are they different?

Porsche described the various J1.1 manufacturing defects as
‘a torn anode tab, a folded cathode tab, a peeled-off cathode or a double production topic pouch crack’.
They seem common items.

Sponsored