can bus problem or software fault ?

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murocmike
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Joined: Wed Oct 03, 2012 7:28 am

can bus problem or software fault ?

Post by murocmike »

have just fitted a sim module on steering column of vauxhall astra 07 plate 1.9 dti [z19dt]
but vehicle still wont start we were getting numerous comms faults recorded in ecus that can be read but also some that cant, including u2103 can data mulfunction & p1613 immobiliser defective with new sim fitted no comm now to engine ecu ,abs, convenience ,steering or instruments & when trying to do key reprogramme get message that a valid security code is already programmed
had tech 2 connected by "airbag man" to up load software but would not communicate to do that either he suspected a canbus problem these are the can high images recorded at sim multiplug
any one any idea if this is a wiring issue ecu issue or a software problem ?
cheers Mike
vaux can bus.psdata
(6.44 KiB) Downloaded 1081 times

Martyn
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Location: Cambridgeshire

Re: can bus problem or software fault ?

Post by Martyn »

I can't see anything in the traces. You may need to re run the test and use File->SaveCurrentWaveformAs when there is live data on the screen.
Martyn
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PicoMike
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Re: can bus problem or software fault ?

Post by PicoMike »

I concur. There is no signal waveform, only the notes and settings are shown :(
Mike Valentine
Online BDM: Pico Technology

murocmike
Newbie
Posts: 3
Joined: Wed Oct 03, 2012 7:28 am

Re: can bus problem or software fault ?

Post by murocmike »

have just fitted a sim module on steering column of vauxhall astra 07 plate 1.9 dti [z19dt]
but vehicle still wont start we were getting numerous comms faults recorded in ecus that can be read but also some that cant, including u2103 can data mulfunction & p1613 immobiliser defective with new sim fitted no comm now to engine ecu ,abs, convenience ,steering or instruments & when trying to do key reprogramme get message that a valid security code is already programmed
had tech 2 connected by "airbag man" to up load software but would not communicate to do that either he suspected a canbus problem these are the can high images recorded at sim multiplug
any one any idea if this is a wiring issue ecu issue or a software problem ?
(new file added)
cheers Mike
Attachments
vaux can bus 2.psdata
(25.6 KiB) Downloaded 1040 times

Darren Cotton
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Re: can bus problem or software fault ?

Post by Darren Cotton »

Mike,
you are not going to be able to tell if its a node, software, or wiring issue just by scoping the CAN... your going to have to start doing some testing...

if you saying your capture is the CAN H & L then you got a problem on that bus, give us a list of what you can talk to, I am surprised you have installed a CIM and programmed it with a network problem???


Darren

Greg.H
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Re: can bus problem or software fault ?

Post by Greg.H »

you are not going to be able to tell if its a node, software, or wiring issue just by scoping the CAN... your going to have to start doing some testing...
Darren.what test should do in a Can bus problem like this????

mteste03
OneWave
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Joined: Mon Oct 29, 2012 9:14 pm

Re: can bus problem or software fault ?

Post by mteste03 »

Hi,

I don't know the network topology off my head on a vauxhall but sure there will be 2 seperate networks ( high speed and low speed network).

I would print a network diagram and establish if every module you can't communicate falls on the same network then decide on the next test after that .

You may end up disconnecting modules until the CAN lines return to normal if a module is 'pulling' the line down or it maybe a power/ earth problem to a module(s).

Is the CIM a gateway module on the vauxhall?

Matt

mteste03
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Re: can bus problem or software fault ?

Post by mteste03 »

*Sorry that should have said SIM not CIM

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Robski
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Re: can bus problem or software fault ?

Post by Robski »

mteste03 wrote:*Sorry that should have said SIM not CIM
Why ?

It's Column Integrated Module, not solumn :wink:

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Robski
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Re: can bus problem or software fault ?

Post by Robski »

OP

What could you comm with before fitting the CIM & what was the reason you fitted a CIM ?

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