Just taken our e89 for its MOT, passed fine but on driving away from the garage or as we tried to leave the garage ALL the dash warning lights are on and the electric handbrake won't operate. I'm thinking alternater not charging enough or a battery issue? Any idea folk's! Thanks Tom
HELP.....EMERGENCY!!!
- Thread starter TOMGREEN413
- Start date
deltasierra
Member
As it’s just had MOT. They plug into the OBD to check car settings etc
, if the disconnect procedure is wrong it messes up the electronics with some cars.
, if the disconnect procedure is wrong it messes up the electronics with some cars.
deltasierra said:
Not certain I've ever seen them plug my car into the OBD at an MOT, could be wrong though
Nictrix said:
Quite possible.
Is the handbrake actually working and just the dash lights lit?
IME MOT places leave cars running while working thru everything to get it nice and hot for the emissions test. And to avoid the problem of flattening a ropey battery with endless short cycles.
Never heard of OBD codes being read in the UK. Happens in some states in the US.
Never heard of OBD codes being read in the UK. Happens in some states in the US.
Thanks everyone for the prompt response, cars back home now and all seems fine, the garage cleared the faults and everything is now fine. Handbrake is now energising again also but I'm thinking they could have drained the battery power during the test, maybe they left the lights or ignition on without the engine running?
matsmith749
Active member
Million unrelated faults at once? Battery.
Get it properly charged up & hope not screwed.
Get the age of the battery checked, if over 5 years (or just no idea) it's time to replace it.
Thanks us later.
Get it properly charged up & hope not screwed.
Get the age of the battery checked, if over 5 years (or just no idea) it's time to replace it.
Thanks us later.
deltasierra
Member
I don’t know why the plug into the car but they do JLR vehicles have had problems if not shut down correctly. Otherwise as others have said charge battery fully and cancel the trouble codes
Here is why
https://mattersoftesting.blog.gov.uk/what-connected-mot-equipment-means-for-you/
It’s bo!!OK$ but a fact of life
Here is why
https://mattersoftesting.blog.gov.uk/what-connected-mot-equipment-means-for-you/
It’s bo!!OK$ but a fact of life
Interesting. Getting OBD data for VIN and, presumably, sensor data makes a lot of sense. I bet they're unplugging the OBD connector when it's running then that's upsetting things.
I did once manage to prevent a BMW starting after having it plugged into INPA which was scary. I can't remember what I did but I've always been a bit paranoid since about disconnecting only after quitting the software and turning the ignition off.
I did once manage to prevent a BMW starting after having it plugged into INPA which was scary. I can't remember what I did but I've always been a bit paranoid since about disconnecting only after quitting the software and turning the ignition off.
matsmith749
Active member
Never seen or heard of an MOT tester going anywhere near the OBD port in all my years.
Is this just a bit of guesswork?
Is this just a bit of guesswork?
The have to check that the VIN is physically stamped or otherwise visibly marked on the car, there is no reason they should be going anywhere near the OBD socket.
Read between the lines in the link. This "connected" they're talking about implies reading stuff direct from the car. And there's only one place that could come from...
matsmith749
Active member
No need to read between the lines. It's either part of the government managed MOT test or its not.
Right now, it's not.
The connected technology for MOT stations is in regard to the test equipment itself (brake testers, headlight aim etc) being connected directly to the systems used to record the tests.
Not the car. Not yet.
I've heard of some stations testing out obd connected told to read things like rpm & engine temp when doing the emissions test, but it's unusual & from November 2022 the guidance permitting that practice had been withdrawn by the DVSA.
Right now, it's not.
The connected technology for MOT stations is in regard to the test equipment itself (brake testers, headlight aim etc) being connected directly to the systems used to record the tests.
Not the car. Not yet.
I've heard of some stations testing out obd connected told to read things like rpm & engine temp when doing the emissions test, but it's unusual & from November 2022 the guidance permitting that practice had been withdrawn by the DVSA.
deltasierra
Member
Connecting to the car can give them all sorts of information about the car, the way you drive and where you have been, all protected by security rules of course (unless it suits them otherwise).
I've never seen anything resembling an OBD reader in an MOT bay and I've seen a few in my time. The official Government MOT testers manual is freely available able on line - it says what they can and cannot do - no mention of OBD at all.
SV8Predator
Member
Rockhopper said:
From the .gov.uk link previously:
"We’re also experimenting with connecting to vehicles during the MOT via the European on-Board Diagnostic port (EOBD). We’ve successfully extracted the VIN, the mileage and, in some cases, fault codes from a high percentage of vehicles."
So it looks like it's coming!
