Hyundai Kona won't start just turns on but will not go on drive.

[Fuzz]

Hi
I bought a Hyundai Kona 2024 with damaged doors. But the car won't start just turns on but will not go on drive. The p can is off. Most modules wouldn't even communicate to the car.
I was wondering if someone could help me find the fault. I know I'm new to the forum and already asking a lot but i would be really grateful if someone could just even try to help.

Thank you

[uhi22]

I can only talk for the Ioniq (which is very similar). The EPCU starts talking on the PCAN as soon as it has 12V power on the right pins. This works on my desk with nothing else connected. So first points to check: Does the 12V arrive at the EPCU? And measure the resistance between PCAN H and L and to ground, to exclude shorted lines.

[projectgus]

Do you have an OBD2 module or a scanner? That can help you discover which modules are offline. If you're lucky then you might be able to read fault codes to tell you what the modules think has gone wrong. (If very lucky, clear those fault codes and allow the car to run.)

This Android app has good support for earlier model Konas, not sure if 2024 revision is different or not. Other apps and scanners will have support too, although not all of them - you need one that can identify all of the modules in the car. (Similarly, a lot of the very cheap OBD2 scanner hardware won't work or will give you a very incomplete picture.)

[Fuzz]

Hi
Thank you all for taking the time to reply.
Yes i did scan the car with three different scanners all giving same fault codes
I'm trying to attach pictures from the scanner but i don't know how to do it.


I can try to write the fault codes with description.
I was wondering if you could simulate that fault on your bench. That would be really really helpful.

C180287. CAN TIME OUT VCU

C160E00 P-CAN BUS OFF
Cluster module
B102052 TPMS MISSING ERROR without tpms unit or connector fault

IBU BCM
C160E00 P-CAN BUS OFF

IBU TPMS
C160E00 P-CAN BUS OFF

If you can indicate where the ibu bcm and tpms is in the car that would help

[img][/im

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[Fuzz]

Can the TPMS module bring the p can bus off?

What if i physically disconnect the TPMS module?
Is the active air flap system on the p can network?
I will measure the resistance between the p can low and p can hi. Should it be 60 ohms?

[projectgus]

A "Bus Off" fault means that the reporting module saw so many errors on the CAN bus that it disabled its own CAN transceiver. "IBU" is the Integrated Body Control module.

So, it sounds like you either have a break or a short circuit in the P-CAN bus wiring. It's more likely to be a broken or shorted wire breaking the connection than a module that's causing the bus fault, although it could be either.

You should measure 60 ohms between PCAN Low and High. You can also measure L/H resistance at different points in the car to find segments which aren't connected, and/or measure continuity between different points that should be connected together.

[Pelland]

Hi Fuss,
You say the car has "damaged doors" can you provide more detail?
The P-CAN bus goes around the engine bay and inside the dash area but all so goes into the floor harness and down to the back of the car.

So depending on where the damage is it may be damaged further down the car.

[Fuzz]

Hello

First thank you again.

I am trying to send pictures but I can't.
When I click on the reply menu and click on image or link they don't work.

Can I post external link to pictures on this forum? Is it allowed?

[uhi22]

Link to external pictures are not recommended.
Click on "Full Editor & Preview", scroll down to the "options/attachments" section, click "Attachments", "Add files", "Place inline".

[Fuzz]

I got it how to insert pictures.

Here is where it was damaged.

I am not at the car right now that's why I have not measured the values of the resistance or the voltage yet.

I will try to disconnect the TPMS module and see if that causing issues as it seems to be on the P can network.

It would be of great help if you can point out where is the EPCU and IBU. A plan showing where the module are would be most welcome even if its not exactly for kona 2024.

Would it be possible for anyone to simulate this particular fault on the table by disconnecting maybe a p can line

[uhi22]

Is the tool able to show a time stamp of the DTCs? Maybe they are old ones, which just need to be cleared? Or do they come back?

[Fuzz]

Hi

I have tried to clear the faults and they came back

We have dismantled the fuse box.

and it has been changed. (it is written faulty on the sticker)

The car came from the dealer and they have changed it there. It is written faulty on the box

Now I don't know if that part number is that for the car or not and whether they have changed other parts in that car

[Doig5710]

Did the airbags go off in the accident? If so then maybe the SRS module has disabled the vehicle because of that, it happens to plenty of petrol/diesel powered vehicles after a crash.
Need to clear crash data from SRS ECU before vehicle can power up, it doesn't even worry about missing airbags, just the crash data.

[Pelland]

The following is based on my experience with a 2021 kona, so may not be exactly the same on the 2024.
At the base of the front A pillar on both sides are large connector blocks with several connectors.
This is the point where the engine loom, main harness, and floor harness all connect together.
I'd look very carefully at everything at the base of the left pillar and the loom going back along the base of the door opening.

I haven't needed to clear any crash data from the SRS module on mine, but I can't get it to go to run consistently yet.

The fuel gauge is showing empty, which indicates the dash isn't taking to the BMS. This would be consistent with a fault in the cabling in the floor harness/ left side connector issue.
Cluster, SKCM, BCM, A/C, SRS, A/V, SCU, SBW are all on the RH side of the main loom. Everything else is on the left side on the engine loom.

[Fuzz]

The following is based on my experience with a 2021 kona, so may not be exactly the same on the 2024.
At the base of the front A pillar on both sides are large connector blocks with several connectors.
This is the point where the engine loom, main harness, and floor harness all connect together.
I'd look very carefully at everything at the base of the left pillar and the loom going back along the base of the door opening.

I haven't needed to clear any crash data from the SRS module on mine, but I can't get it to go to run consistently yet.

The fuel gauge is showing empty, which indicates the dash isn't taking to the BMS. This would be consistent with a fault in the cabling in the floor harness/ left side connector issue.
Cluster, SKCM, BCM, A/C, SRS, A/V, SCU, SBW are all on the RH side of the main loom. Everything else is on the left side on the engine loom.

Hi

When you are saying that fuel gauge shows empty is your Kona a hybrid?

I can't talk to the airbag module the seat airbag deployed yes
I am not too familiar with the abbreviations SKCM BCM IGPM

Can anyone give an indication of where the main unit lies in the car? Is there some kind of plan or even a drawing with rough indication where these modules lies in the car?

What would be the proper name of the fuse box that I found written defective in my car?

Thanks

[Pelland]

Mine is a full electric extended range Kona. When I say fuel gauge I'm referring to the full/empty gauge in the bottom of the speedo.

The fuse box in your photos is called the IGPM (integrated gateway power module). As well as doing the supply for lots of body modules it is a CAN gateway between multiple CAN busses.
The Kona has a D-CAN, P-CAN, C-CAN, M-CAN, & B-CAN all connected via the IGPM. There's also an L-CAN but that's off by it's self in the lane keeping system.

It sounds like you are at the same learning stage I was about a year ago. Lots to discover.
I would recommend you get a hold of the ETM (Electrical Technical Manual) for your model. It contains all the details of module location, connector locations & pinouts, and schematics.

Hyundai have a GSW (Global Service Web) system where this information is available. Access to GSW is very country dependent, the EU countries anyone can get a 24hour access for about 15Eros. In New Zealand only the dealers can get access.

[Fuzz]

Yeah still at the very beginning of the learning curve
. Thought it would have been much easier. But the dealer complicated stuff when they changed the fuse box. Now not sure what else they changed.
My car is from June 2024 the fuse box is manufactured on 20 February 2025.

I have asked permission from Hyundai to access the global server but so far no reply.
I'm from Mauritius.

If anyone is willing to share the electrical technical manual for a Kona that would be great. Even if not exactly from my model. I will get an idea where to move

[Pelland]

Here's a link to the Euro login site for Hyundai
https://service.hyundai-motor.com/euro5 ... s?siteCd=H

If you login from a German location you'll pay tax, log in from any other EU country and there's no tax.

You can explore the site without logging in and it doesn't seem to mind where you are until login.

You should be facing an easier task than me based on the photos.
Here's my problem

[Fuzz]

Woh......

I would be afraid to touch that.

Thanks for the tips.

I have some experience how to read MCU and eeprom. If ever you need my help just let me know. I can try.
Mine is two doors plus fender that got hit. But the dealer I should say stole parts from that car. The fuse box when I opened it was made on 20 February 2025. So must have been used on a brand new car.
Now makes me think the non start problem is not from the fuse box. There might be other things they touched. Because I heard the car was driveable after the accident.


Hmmm

I just tried the link ... not allowing me through

Your location is a country where service is not available. Will probably need a vpn

I am from Mauritius

[projectgus]

The following is based on my experience with a 2021 kona, so may not be exactly the same on the 2024.
At the base of the front A pillar on both sides are large connector blocks with several connectors.
This is the point where the engine loom, main harness, and floor harness all connect together.
I'd look very carefully at everything at the base of the left pillar and the loom going back along the base of the door opening.

Seconding this, based on the accident damage I reckon it's quite likely the wires in that area have been damaged and PCAN is disconnected or shorted to something around there.

Trying to fix the issue by disconnecting the TPMS module is most likely swapping cause and effect: the DTC shows a fault report from the TPMS module saying "I can't talk to the PCAN Bus, giving up and going to CAN Off". This doesn't imply that the TPMS module is causing that problem, only that it's reporting it sees a problem.

Good luck!

[Fuzz]

Would that be the A pillar? Passenger side? As indicated in this picture?

[Pelland]

You're on the right track with the VPN.

Yes A piller as per your picture.

The following photos show the wiring harnesses. You can just make out the block of connectors down by the door. The loom runs along beside the door and also branches across the car under the seats.

Good to know you have electronic skills, that will help when you start looking at the buss signal

[Fuzz]

Hi
Any chance you know which module sends temperature info on the dashboard and battery percentage? Nothing on the dashboard for those

[Pelland]

Can't remember where temp comes from but the battery percentage is from the BMS.
My car is RHD, if yours is LHD wiring layout is a bit different.

While working on getting access to the ETM I suggest you unplug the connectors between the wiring under the dash and the loom on the floor on BOTH the RH and LH sides. Then turn it on and try clearing all the DTCs.

I suspect the P-CAN off messages will clear. If so reconnect one side at a time and see what changes. I really think the most likely problem is damaged wiring around the LH side

[Pelland]

I think this topology is for a LHD as my IGPM is on the right, not left as shown