Ask for and share advice on using the PicoScope kit to fix vehicles here.
- Posts: 24
- Joined: Sun Aug 27, 2017 8:00 am
Your methodology makes sense , where are the scope patters to support it .If you have solved problems with this present the data .We all learn from participation and sharing
- Posts: 155
- Joined: Tue Nov 01, 2016 8:58 am
These are just notes that I have written down to help people whilst they are trying to trouble shoot a CAN fault. They can just pop on here and run through the list and see if there is a step that they have forgotten/missing. It is not a a case study or a diagnostic discussion. Its merely a diagnostic aid to help someone out if they are struggling. Sorry for the lack of scope captures
- Posts: 1
- Joined: Sun Oct 07, 2018 10:51 am
We have a CAN BUS communication issue.
We measured the CAN H and CAN L data line and one of the signal level is LOWER than the others.
What's caused this?
- Posts: 151
- Joined: Sat Mar 19, 2016 8:23 am
- Location: Netherlands
Connector / wiring extra resistance, power supply to the respective module insufficient, bad CAN transceiver inside module.0