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aus+uk / uk.rec.cars.maintenance / Re: how hard is finding CANbus problems

SubjectAuthor
* how hard is finding CANbus problemsrandy bosch generator
+- Re: how hard is finding CANbus problemsnewshound
+- Re: how hard is finding CANbus problemsFredxx
+- Re: how hard is finding CANbus problemsAdrian Caspersz
+- Re: how hard is finding CANbus problemsAndrew
`- Re: how hard is finding CANbus problemsJohn Henderson

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how hard is finding CANbus problems

<spplh3$8eg$1@gioia.aioe.org>

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From: soc...@it.to.me (randy bosch generator)
Newsgroups: uk.rec.cars.maintenance
Subject: how hard is finding CANbus problems
Date: Mon, 20 Dec 2021 18:22:25 +0800
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 by: randy bosch generato - Mon, 20 Dec 2021 10:22 UTC

I have a Vauxhall-Opel shitbox with error code U0009
that means CANbus short circuit
An auto electrician said it could take up to 5 days to find the fault!
40 hours labour would be more than the car is worth.
Is this realistic, or is he conning me????????????????????

Re: how hard is finding CANbus problems

<sppora$rqe$1@dont-email.me>

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From: sradclif...@gmail.com (newshound)
Newsgroups: uk.rec.cars.maintenance
Subject: Re: how hard is finding CANbus problems
Date: Mon, 20 Dec 2021 11:19:06 +0000
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 by: newshound - Mon, 20 Dec 2021 11:19 UTC

On 20/12/2021 10:22, randy bosch generator wrote:
> I have a Vauxhall-Opel shitbox with error code U0009
> that means CANbus short circuit
> An auto electrician said it could take up to 5 days to find the fault!
> 40 hours labour would be more than the car is worth.
> Is this realistic, or is he conning me????????????????????

Perhaps he means it could take 5 days to find and fix (which is what
most people would want). It's probably not a literal calculation, rather
an indication that locating and fixing a problem in a very inaccessible
location could take a long time.

Why not say "See how far you can get in an hour".

Re: how hard is finding CANbus problems

<spptmq$hep$1@dont-email.me>

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From: fre...@nospam.invalid (Fredxx)
Newsgroups: uk.rec.cars.maintenance
Subject: Re: how hard is finding CANbus problems
Date: Mon, 20 Dec 2021 12:42:01 +0000
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 by: Fredxx - Mon, 20 Dec 2021 12:42 UTC

On 20/12/2021 10:22, randy bosch generator wrote:
> I have a Vauxhall-Opel shitbox with error code U0009
> that means CANbus short circuit
> An auto electrician said it could take up to 5 days to find the fault!
> 40 hours labour would be more than the car is worth.
> Is this realistic, or is he conning me????????????????????

It's probably the worst case scenario, a short on the loom or a related
control unit has failed.

I would say 5 days of labour is excessive, or it could mean 5 days of time.

Given the nature of the fault in an ideal world I would disconnect
everything first, but given some units may be inaccessible it's not a
quick and easy job.

You haven't said what car, or how extensive the CANbus communication is
on your car.

Re: how hard is finding CANbus problems

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From: ema...@here.invalid (Adrian Caspersz)
Newsgroups: uk.rec.cars.maintenance
Subject: Re: how hard is finding CANbus problems
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 by: Adrian Caspersz - Tue, 21 Dec 2021 09:58 UTC

On 20/12/2021 10:22, randy bosch generator wrote:
> I have a Vauxhall-Opel shitbox with error code U0009
> that means CANbus short circuit
> An auto electrician said it could take up to 5 days to find the fault!
> 40 hours labour would be more than the car is worth.
> Is this realistic, or is he conning me????????????????????

Recent fitted car radio?

--
Adrian C

Re: how hard is finding CANbus problems

<spt1b1$oe6$1@gioia.aioe.org>

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From: Andrew97...@mybtinternet.com (Andrew)
Newsgroups: uk.rec.cars.maintenance
Subject: Re: how hard is finding CANbus problems
Date: Tue, 21 Dec 2021 17:02:24 +0000
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 by: Andrew - Tue, 21 Dec 2021 17:02 UTC

On 20/12/2021 10:22, randy bosch generator wrote:
> I have a Vauxhall-Opel shitbox with error code U0009
> that means CANbus short circuit
> An auto electrician said it could take up to 5 days to find the fault!
> 40 hours labour would be more than the car is worth.
> Is this realistic, or is he conning me????????????????????

Can you leave the car in a warm dry garage for a few days
and see if the fault disappears on its own ?. If it does,
there is damp getting into a connector somewhere.

Maybe try disconnecting every cable socket in turn and
cleaning, and reconnecting with a smear of vaseline
around the hermatic seal (if there is one). Your time
is free.

Do the multiway cables going to each door carry CANbus
data ?. These are flexing regularly so could be the
first places to peruse.

Re: how hard is finding CANbus problems

<spt8sj$nhk$1@gioia.aioe.org>

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From: inva...@invalid.invalid (John Henderson)
Newsgroups: uk.rec.cars.maintenance
Subject: Re: how hard is finding CANbus problems
Date: Wed, 22 Dec 2021 06:11:14 +1100
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 by: John Henderson - Tue, 21 Dec 2021 19:11 UTC

randy bosch generator wrote:

> CANbus short circuit

Internal shorts can develop in bulbs as a mode of failure.

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