PicoScope 7 Automotive
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2009 fiat ducato high speed Canbus sleep problem
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Keith Spencer
- Newbie
- Posts: 1
- Joined: Fri Feb 09, 2024 3:06 pm
2009 fiat ducato high speed Canbus sleep problem
This is a screenshot of my oscilloscope on the high speed Canbus of a 2009 fiat ducato motorhome.
Everything looks fine on the canbus high speed until just before going to sleep and then the voltages drop to 1 volt and then back up again between each data frame for a second or two as shown.
The system then produces a B can DTC for the body module saying no canbus bad wiring. It also then produces similar dtc for the airbag and instrument cluster, which are on the B can, which goes to sleep after the C can and therefor sees the error.
Has anyone any experience similar to this?
No faults evident YET during driving!
Thanks in anticipation.
Everything looks fine on the canbus high speed until just before going to sleep and then the voltages drop to 1 volt and then back up again between each data frame for a second or two as shown.
The system then produces a B can DTC for the body module saying no canbus bad wiring. It also then produces similar dtc for the airbag and instrument cluster, which are on the B can, which goes to sleep after the C can and therefor sees the error.
Has anyone any experience similar to this?
No faults evident YET during driving!
Thanks in anticipation.
- Attachments
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- Recessive voltage 1 volt