What is up with Denmark's car laws?

 

Can you find someone with a code reader that will scan all the control modules for faults?
The message associated with the recall is not "High Voltage System Fault Detected". Something else triggered it as there are multiple HV components. A fault code (or more) would narrow down where the problem lies.

Does the air conditioning system work properly?

Does this happen with DCFC charging or level 2 charging or level 1 charging?

 

My experience when "High Voltage System Fault Detected" is indicated, it has shown a P0AA6-00 (isolation fault) and also a P065B-16 (generator control circuit range below threshold). Now what causes this fault, I am not sure. Some have charged at a DCFC and started to pull away and the warning will appear for a short time and disappear after driving around the parking lot. In my case it occurred after returning home from an automatic car wash (maybe a coincidence). By the time my dealer diagnosed it, the car had fallen into a deep, deep sleep (over a week) and the fault had disappeared, but was still in memory. My dealer sent an inquiry to JLR, but their response was not to worry and return the vehicle after clearing the codes. My advice if you can get by without the car would be to lock and let it rest for at least 4 or 5 days and turn it on again. By the way, during the fault code can you hear the contactors in the rear turning off and on when you come to a stop. Mine would break connection coming to a stop fault code will appear. Then upon acceleration contactors would connect fault code would disappear and the car would drive normally until the next stop and the process would start all over again. The wiring harness repair video from the technician in Ukraine had this fault occur after the harness repair and it also disappeared the next day without explanation. Good Luck and keep us posted on your outcome.

 

PS : Video is under "Transmission Failure Detected" thread. Run it until you reach about 10:45 min and you will see the tech experience the "HV System Fault". He too was baffled as to the cause.

 

I've just started having the same issue with my ipace, the contactors break connection when you come to a stop then reconnect when you pull away - you can hear them clicking in the back of the car and sometimes I have actually loss drive momentarilly. I was looking for this video of the technicain in Ukraine - do you have the link please? Thanks

 

Thanks for taking time and for the advices. The issue is happening after level 1 and also after level 2 charging. Normally the message would pop up every minute until I park the car for more than 15 min (shutdown timer). There are no other issues, aircon works fine. The workshop could not determine the root cause, Jaguar is so far silent about the issue. In the “bad” state of the car I tried to accelerate, break to see if it would trigger the message (loose contact), but there seemed to be no correlation between the breaking/acceleration and the time when the message shows up. I will do some experiments based on your suggestions and report back. Thanks again

 

Verify that H441 successfully installed. Go to the software update display and check the battery energy control system value starts with 'BS'.

Has the 12V startup battery ever been replaced? A faulty battery could trigger odd things since the electronics depend on a good 12V supply. Check that the 12V batteries have not come loose somehow. Dealers installing software updates have to attach an external 12V supply during the update (Jaguar required process).

12V battery charging occurs during a car charging session. This will drive the DC-DC converter and any fault in the converter, or the converter attempting to charge a bad battery might trip the problem.

Just brainstorming. Fault code(s) are needed to narrow down the possibilities.

 

I have had that error message many times. Primarily when I charge using a DCFC or when it is very hot outside. I have asked the dealership about this and they have shrugged their shoulders and told me they had no answer. I have begun to ignore it (at my peril?) because it has never shown any operational problems and the message never repeats itself within the drive period after it first shows. In other words; it goes away.

 

Yup same here. Drive around the block, away it goes. Software bug #243.

 

Yup same here. Drive around the block, away it goes. Software bug #243.

I have a couple of random software bugs that I learned to live with. Like turning off and on the car in a brief time will cause a fault and disable blind spot assist. Automatic wipers can only increase the speed of the wiper, but never decrease. I also had to replace a charging module right after the warranty expired, and that was expensive fun. Luckily, Jaguar picked up some of the expenses. This high voltage error is worrying, since I have not seen this before, and now it happened two times in two weeks. On the fun part, it is a very ironic error message, saying High voltage fault and ok to drive. It sounds like a doctor saying you have cardiac issues, but you will be fine.

 

Automatic wipers can only increase the speed of the wiper, but never decrease.

Cosign.

 

After several weeks, Jag has no idea what is wrong with the car. The car is out of warranty, so I'm left with lots of questions marks. Ironically, I guess if it stops it will just become scrap metal.

 

Some updates on the car. The Jaguar service scheduled a remote diagnostic session with Jaguar engineers to diagnose the issue. In the last moment, the engineer called to cancel the session and they didn't know when they would get time to check it. I had to pick up the car and keep driving as it is.

I'm out of options. Some lesson learnt, once you are out of warranty with Jaguar, you are on your own with a piece of proprietary tech. Drive it until it stops one day. I love the car, but it is my first and last Jag.
It is a serious design fault, that they implement error messages without proper diagnostics or a way to identify the problems.

 

Anu updates on this? I get the HV error message during 50kw public charging and car "judders" for about 10 seconds when I start driving but clears itself. I have had it in at Jaguar twice and they can't seem to get the fault up.. strange!

 

I don’t think anyone has seen a shuttering thing associated with the HV battery. When you see odd unrelated messages, it often points to the 12v batteries (or battery, depending on your model year). How old is the car and are you on the original 12v battery(ies)?

 

@robertkirk1992 , if you have Jaguar Assist support available, I suggest having them check that the car is current on software updates.

Also, https://www.i-paceforum.com/threads/please-include-car-info-in-account-details.8469/#post-91034

 

I had the car in the Jaguar workshop for over a month and spent about 1500 EUR paying for diagnostics. No results. I tried to find a different Jaguar workshop, but they told me that it is unlikely they can fix it, since the issue requires Jaguar engineers to get involved and Jaguar reduced the allocated of staff supporting the I-Pace. They can't do anything more for me. None of the diagnostic software or tooling available for the official workshop is suitable for diagnosing the problem - I was told. The unfortunate conclusion after months trying to solve this problem: I drive it until it stops.

 

Update on the issue:

The workshop found the problem. It is an isolation/wiring issue. Repair cost estimated around 7000EUR, out of warranty.

One of the batter cells failed too, it will take about 3
months to fix it. The service tried to limit the charge level to 70%, but the charging system stopped working after the change. The car is grounded.

Selling the car and going back to ICE. I gave it a 4 years shot, and it is not the electric revolution I was promised.
Jaguar knows there is an issue with the wires, but won’t be recall the cars.

 

Is that the wiring harness issue that was a recall item in some countries. Sometimes referred to as parking pawl?

 

I have a 2019 I Pace. Recently had the H441 update installed, March 23, 2024. Two weeks later after charging at a public charging station over 92%, received a high voltage on the display screen. It also stated safe to drive. After placing the vehicle in drive and drove 1/4 of a mile the message went away.

 

This may be a glitch and unrelated. I once had a similar error after charging (DC fast charge at an Electrify America and it cleared in a few minutes and never returned. I am pretty sure there are a few thread here with the same thing.

 

After 5 months in the service, Jaguar finally found the issue of the isolation fault. It is a 125K DKK (16,750 EUR) repair on car with 60k km.
They also replaced one of the battery cells under warranty in 10k EUR covered by Jaguar.

 

Hi there, have you find out what was the problem and fix it for high voltage fault detected warning

 

Yeah, see the repair bill posted.

 

I had the recall and the battery module replaced (car in shop 3 weeks) , charged three times. Final time got Charging System Fault Error plus the charger was stuck on the car, took three weeks of phone calls to dealership and absolutely no help (release cord was not found). I am so over this car. Now I have to take it in, and I will not pay to have the fault diagnosed. I would love to see a class-action lawsuit, and I am not litigious, but how can a company take action that instantly devalues the car. Any others?

 

https://www.i-paceforum.com/threads/transmission-failure-detected.7282/#post-74458

 

Thank you Ayepace for replying, I found the video and yes this is what my car has been doing and then throwing up "high Voltage fault" on the dash. I took the car to Jaguar to be tested and they couldn't replicate the fault but did say that they had measured the EV High voltage battery isolation at 370 kOhms. Apparently the car will register a High Isolation fault if it drops to 233 kOhms. They are saying that there is a potential High Isolation fault in the EV High Voltage battery (sealed unit) which they say might be covered under warranty but only if it is the actual battery cells - cost to open the the EV High voltage battery and replace any items not under warranty could be as high as £13,000.
Strangely when I collected my car it now no longer "brakes the contactors" when stopping, drives and charges normally! Clearly I will not be spending £13000 to find a fault that has disappeared but now that I know I have a low isolation reading of 370 kOhms within the EV High voltage battery I am unsure if I should sell the car or just hope it never becomes a problem - car was registered Oct 2018 so nearly 7 years old! Any advice please

 

Hello Guys, Same problem HVS fault detected. The car workiing perfect, but it wont charge, it says error.

 

It won’t charge whilst there is a high voltage fault - try leaving the car for a few hours or even a day, then try charging on your home charger! Not ideal but it might get your car charged up enough so that you can get it to a EV workshop

 

Thanks. I have still 76% do it is enough to get to jag service. I cross my fingers thst will be not expensive to fix.