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New Car? Count the fault codes. #762334
23/11/22 06:17 PM
23/11/22 06:17 PM
Joined: Dec 2008
Posts: 20,673
South Yorkshire
DaveW Offline OP
Roadster Guru
DaveW  Offline OP
Roadster Guru
Member of the Inner Circle

Joined: Dec 2008
Posts: 20,673
South Yorkshire
Son in Laws parents recently got a new VW T Roc on lease. From day 1 it has thrown up multiple fault codes. An "engineer came out" and suggested that VW changed a control module, but the dealer still has the car, and can't find a problem.

The VW dealer lent them Corsa. It's been going on over two weeks.

Interestingly, a Nissan was in the news recently for the same problems.


https://metro.co.uk/2022/11/16/kent-couples-new-33000-nissan-has-mind-of-its-own-17771863/


DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
Re: New Car? Count the fault codes. [Re: DaveW] #762338
23/11/22 06:34 PM
23/11/22 06:34 PM
Joined: Mar 2009
Posts: 2,208
southwest France
M
meabh Offline
Talk Morgan Expert
meabh  Offline
Talk Morgan Expert
M

Joined: Mar 2009
Posts: 2,208
southwest France
well Dave, my brother bought a new Kia Nero but it has eighteen fault codes and he doesn't know when he will see it again.

Re: New Car? Count the fault codes. [Re: DaveW] #762339
23/11/22 06:39 PM
23/11/22 06:39 PM
Joined: Nov 2015
Posts: 5,655
People's Republic of South Yor...
CooperMan Offline
Just barreling along
CooperMan  Offline
Just barreling along
Charter Member

Joined: Nov 2015
Posts: 5,655
People's Republic of South Yor...
I think I'll stick with cars that have the KISS principle for as long as I can, sadly tech is just too complex in new spec cars, lots of it we don't need but it's a fashion arms race between manufacturers nowadays so we're stuffed


Jon M
Re: New Car? Count the fault codes. [Re: DaveW] #762341
23/11/22 06:40 PM
23/11/22 06:40 PM
Joined: Dec 2008
Posts: 20,673
South Yorkshire
DaveW Offline OP
Roadster Guru
DaveW  Offline OP
Roadster Guru
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Joined: Dec 2008
Posts: 20,673
South Yorkshire
Would it be too conspiracy theory to suggest the chip makers are supplying a few rogue chips?


DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
Re: New Car? Count the fault codes. [Re: DaveW] #762349
23/11/22 08:38 PM
23/11/22 08:38 PM
Joined: Aug 2010
Posts: 4,438
Costock, South Nottinghamshire...
Paul F Offline
Part of the Furniture
Paul F  Offline
Part of the Furniture

Joined: Aug 2010
Posts: 4,438
Costock, South Nottinghamshire...
More likely to be fall-out from cheap connectors failing to make reliable contact at the low currents used for many signals in cars.

Motor manufacturers are unlikely to add the cost required for better quality connectors or for electronic solutions.

Wikipedia has a reasonable explanation of the concept.


Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 5
Teddy - 17h1 Irish Draught cross
Re: New Car? Count the fault codes. [Re: Paul F] #762352
23/11/22 09:13 PM
23/11/22 09:13 PM
Joined: Feb 2016
Posts: 5,681
East Harling, Norfolk UK
RichardV6 Offline
Charter Member
RichardV6  Offline
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Joined: Feb 2016
Posts: 5,681
East Harling, Norfolk UK
Originally Posted by Paul F
More likely to be fall-out from cheap connectors failing to make reliable contact at the low currents used for many signals in cars.

Motor manufacturers are unlikely to add the cost required for better quality connectors or for electronic solutions.

Wikipedia has a reasonable explanation of the concept.

Yep no doubt that's the reason, not helped by British weather either.

The phenomena was highlighted on my narrowboat when I swapped out halogen ceiling lighting for LED. The household switches coped fine with the current draw from halogens but after fitting LED's and particularly after leaving boat for several weeks unused, many of the switches had to be operated several times to clear contact oxidisation and so have the lights come on reliably given the very low current draw.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1945 Moto Guzzi Airone
Re: New Car? Count the fault codes. [Re: DaveW] #762358
23/11/22 09:48 PM
23/11/22 09:48 PM
Joined: Apr 2014
Posts: 6,406
Renfrewshire
BobtheTrain Online content
Talk Morgan Sage
BobtheTrain  Online Content
Talk Morgan Sage

Joined: Apr 2014
Posts: 6,406
Renfrewshire
When we used relays, we used to use 50V DC for point detection to ensure the points were in the correct position. When it was changed to electronic equipment, we use 6V pseudo random binary and quite often the contacts in the points wouldn't pass the current.


Best Regards
Lang may yer lum reek
Re: New Car? Count the fault codes. [Re: BobtheTrain] #762370
24/11/22 06:40 AM
24/11/22 06:40 AM
Joined: Jul 2007
Posts: 27,167
Cheltenham, Glos. UK
Graham, G4FUJ Offline
Salty Sea Dog
Graham, G4FUJ  Offline
Salty Sea Dog
Member of the Inner Circle

Joined: Jul 2007
Posts: 27,167
Cheltenham, Glos. UK
Part of the "leaves on the line" failure scenario Bob?


Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'09 Alfa Romeo MiTo
Re: New Car? Count the fault codes. [Re: Graham, G4FUJ] #762379
24/11/22 09:17 AM
24/11/22 09:17 AM
Joined: Apr 2014
Posts: 6,406
Renfrewshire
BobtheTrain Online content
Talk Morgan Sage
BobtheTrain  Online Content
Talk Morgan Sage

Joined: Apr 2014
Posts: 6,406
Renfrewshire
Originally Posted by Graham, G4FUJ
Part of the "leaves on the line" failure scenario Bob?

No, a completely different fault. BtW - leaves on the line is a real fault, they can prevent the train from dropping the track circuit and the train disappears on the signaller's panel. They can also cause slipping when braking.


Best Regards
Lang may yer lum reek
Re: New Car? Count the fault codes. [Re: BobtheTrain] #762390
24/11/22 11:07 AM
24/11/22 11:07 AM
Joined: Jul 2007
Posts: 27,167
Cheltenham, Glos. UK
Graham, G4FUJ Offline
Salty Sea Dog
Graham, G4FUJ  Offline
Salty Sea Dog
Member of the Inner Circle

Joined: Jul 2007
Posts: 27,167
Cheltenham, Glos. UK
Originally Posted by BobtheTrain
Originally Posted by Graham, G4FUJ
Part of the "leaves on the line" failure scenario Bob?

No, a completely different fault. BtW - leaves on the line is a real fault, they can prevent the train from dropping the track circuit and the train disappears on the signaller's panel. They can also cause slipping when braking.

thumbs Thanks.


Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'09 Alfa Romeo MiTo
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