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08 xc90 lost canbus? Topic is solved

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
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2000c70hpt
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Re: 08 xc90 lost canbus?

Post by 2000c70hpt »

I can’t but I can tell you what they are.
Lost signal communication from tcm
Low signal antenna ring/light
Check fuses
Checking alternator

Modules not responding
Ecm
Tcm
Bcm
Sas

Hope this helps. Vida also shows disconnected with no battery voltage or key pos. My vida dice works fine for my 2000 c70
2000 C70 hpt with 140k
2008 xc90 t6 non turbo with 170k
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yagger
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Re: 08 xc90 lost canbus?

Post by yagger »

2000c70hpt wrote: Sat Jun 06, 2020 3:29 pm I can’t
Why? If you can see errors that means you can do screenshot. Just use button Print Screen and Ctrl+C in the "Paint" application. After this you can edit (if need) and save it to file.
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yagger
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Re: 08 xc90 lost canbus?

Post by yagger »

It is very easy. Like example you can see, all your modules communicate to each other trough CEM...
But, if you confirmed CEM does not has some damages, looks like there is some issue with other module or wires.
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XC90_HiCAN.png
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2000c70hpt
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Re: 08 xc90 lost canbus?

Post by 2000c70hpt »

I put an oscilloscope on it today but I couldn’t see any hiccups or jumps in the can circuit. I’m about to just drive it till it dies or sell it before it becomes any more of a headache. Feeling very defeated right now.
2000 C70 hpt with 140k
2008 xc90 t6 non turbo with 170k
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2000c70hpt
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Re: 08 xc90 lost canbus?

Post by 2000c70hpt »

Here are pics of what’s going on :| :|
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0EF06BB4-DF12-46AF-9AC5-CFA80932FB41.jpeg
6FB94D6A-A499-4477-9F06-486612255F1C.jpeg
DC97FF30-4A73-4903-BEAA-C1F316BDC463.jpeg
2000 C70 hpt with 140k
2008 xc90 t6 non turbo with 170k
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yagger
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Re: 08 xc90 lost canbus?

Post by yagger »

Can you show screen with activated Network tab?
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VidsNetworkTab.png
VidsNetworkTab.png (276.02 KiB) Viewed 141 times
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2000c70hpt
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Re: 08 xc90 lost canbus?

Post by 2000c70hpt »

33460A51-2448-4F4F-86F3-54E96B388799.jpeg
Here ya go
2000 C70 hpt with 140k
2008 xc90 t6 non turbo with 170k
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yagger
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Re: 08 xc90 lost canbus?

Post by yagger »

Is it situation only when engine running or when it stopped also?
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2000c70hpt
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Re: 08 xc90 lost canbus?

Post by 2000c70hpt »

It happens in either situation.
2000 C70 hpt with 140k
2008 xc90 t6 non turbo with 170k
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Re: 08 xc90 lost canbus?

Post by yagger »

What can I say, you have to use oscilloscope in this case... at least.
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