NCT Advisory OBT meaning

creedp · 17-03-2022 12:01am #1

Just passed my NCT on a 2016 Leaf. However there was an advisory which I didnt see u til I got home. It was under Visual Defects with the description 'Connection failure with electronic vehicle interface'.If I had seen at the time I would have asked for clarification. What I'm confused by is that it is under the visual defects section with no a toal OBD faults recorded. Any one know what this advisory means?

Gumbo · 17-03-2022 12:15am

https://www.boards.ie/discussion/2058237703/nct-advisory-obt-meaning

Got it on the other halves 520d last month too. Been meaning to ask around about it.

User1998 · 17-03-2022 12:58am

It means they were unable to connect to your OBD and scan for faults

creedp · 17-03-2022 3:07am

I use the OBD port to run the Leafspy diagnostic app and it works fine so I'm wondering why they werent able to use it or their diagnostics check.

Is this something I should follow up with Nissan?

Whocare · 17-03-2022 7:08am

Next time it be going for nct it will fail nct if can't do ob2 check.

It pure con this obd scans like my car got advisory about voltage too low in abs next time it will need to be fix like car don't think it issue ie no abs light on if I brake hard abs work . Like what ever wrong with it could cost big money for no reason

17-03-2022 10:03am

https://www.boards.ie/discussion/comment/118796778#Comment_118796778

Did you have the dongle plugged in during the NCT?

creedp · 17-03-2022 10:07am

No I unplugged it prior to test. Is it possible it's simply that the tester couldnt locate the port?

zg3409 · 19-03-2022 10:22am

https://www.boards.ie/discussion/comment/118796862#Comment_118796862

Voltage too low on abs may mean abs will not work when needed. For airbags they may not deploy when battery voltage is low. In USA they need a pass on emissions from car odb or car will not pass.

It sounds like they are just trying out the odb interface system to see what cars give errors to see what sorts of fails they might get in the future.

It may be a bit of a scam but may back street garages fake abs and airbag lights, just to get them through the NCT. A friend worked in a car parts place. A dodgy device to fake airbag light was a big seller, meaning airbag would look ok, but was faulty. This new NCT check may pick up on these sorts of tricks. Many bypass DPF and hide the fact visually, but this may detect it . In the USA fake/false odb devices exist to basically fool the NCT into thinking the car is ok, when the real car odb is hidden and would indicate a fault.

L1011 · 19-03-2022 11:20am

I saw the tester fail to find the port on mine, leading to that advisory. Suspect if it needs any tools to find they just aren't bothering.

Toyotafanboi · 19-03-2022 11:37am

One of the requirements of an OBD port is that you dont need any tools to access it.

creedp · 19-03-2022 1:36pm

https://www.boards.ie/discussion/comment/118805076#Comment_118805076

The Leaf's obd port is located under the steering wheel. Its normally covered by a plastic panel. However the panel is removed on mine as I use it regularly so no reason for the tester not to find it. I've plugged back in the obd dongle and it works fine for the Leafspy app so dont know what the problem is. Is there any option to go back to NCT to clarify the issue?

Turbolounge · 19-03-2022 5:11pm

https://www.boards.ie/discussion/comment/118805557#Comment_118805557

My leaf doesn't have any plastic covering the obd2 either, when I was viewing it I was easily able to find it to use leafspy. No idea why the NCT tester wouldn't be able to locate it

glenval3 · 16-02-2023 9:14pm

Hi

Can you let me know if you were able to get this sorted out? I'm looking at buying a used car but saw this same failure to connect to interface as an advisory on the NCT sheet, when I asked the seller for the NCT report.

Arnout · 17-02-2023 9:07am

https://www.boards.ie/discussion/comment/118805145#Comment_118805145

On my car you have to take a panel off, which requires the use of a screwdriver. Not that highbrow, but still a tool.

User1998 · 17-02-2023 10:07am

https://www.boards.ie/discussion/comment/120250657#Comment_120250657

Its not something that needs to be fixed. Its completely irrelevant.

glenval3 · 17-02-2023 10:31am

In the NCT manual it says this is something they can fail you for. So not sure how it's irrelevant

creedp · 17-02-2023 10:47am

https://www.boards.ie/discussion/comment/120251969#Comment_120251969

I don't think some NCT guys even check it as it's only an advisory as yet. As I said in my case the OBD port was fully visible and accessible and is working properly and yet I got the same advisory. I'm ignoring and see what happens next time.

Mav11 · 17-02-2023 10:55am

I got the same advisory last year. I reckon that they couldn't find it. Showed the tester where it was this year and no problem or advisory!

User1998 · 17-02-2023 11:15am

https://www.boards.ie/discussion/comment/120251969#Comment_120251969

They can’t fail you for OBD faults. Advisory only. I get one of these advisories for most of the cars I NCT these days.

glenval3 · 17-02-2023 11:48am

They can fail them, they just aren't doing it yet. The NCT are pretty clear on this.

User1998 · 17-02-2023 12:38pm

https://www.boards.ie/discussion/comment/120252381#Comment_120252381

Sure, and they could start failing for having a red car too. But right now it is advisory only and there is no date or timeframe set to start failing it.

Not sure why your being defensive, your considering not buying a car because of an OBD fault, I’m just pointing out that its not a valid reason not to buy the car. If everything else is okay then I’d have no problem purchasing.

Anything could happen to the car in the next 12/24 months that could be an NCT failure. Its all a part of owning a used car

colm_mcm · 18-02-2023 5:47pm

If I was buying something that had that noted on the test, I’d at least make sure the OBD port was functional.

NCT Advisory OBT meaning

Comments