Please watch the following video for more information about CAN-BUS: CAN-BUS Explained | Everything You Need to Know About CAN-BUS | CAN-Bus Diagnostics & How It Works:ua-cam.com/video/bvyHx-C2Xfs/v-deo.html
check this video too: Test CAN BUS With a Multimeter | Quick & Easy | CAN Bus Resistance, Voltage & Short to Ground Test ua-cam.com/video/1hGhhu2uc4Y/v-deo.html
Ok. So I am at the very beginning stages of Picoscope diagnosis. I understand how to see a good can high and low… in my case I have an intermittent Can high issue. I can see the waveform change when the issue happens.. so now, question is, what do i do next to narrow down the location of the issue/cause of the issue? Can you recommend another video?
Thanks, I actually had no commutation with many units on my scan tool which can be from the CAN-Bus, so when I checked it, I saw that somebody screwed another wiring harness under the dash which caused short to ground on CAN-Bus as CAN-High insulator had been damaged by that screw. I removed the screw but before fixing the damaged wire, I made this video and used a piece of wire and an alligator clip to show the fault to you guys.
![HOW TO DIAGNOSE CAN BUS FAULTS [PicoScope 2204A Low Speed CAN] Mechanic Mindset](http://i.ytimg.com/vi/ncQfdhzUFCk/mqdefault.jpg)
Please watch the following video for more information about CAN-BUS:
CAN-BUS Explained | Everything You Need to Know About CAN-BUS | CAN-Bus Diagnostics & How It Works:ua-cam.com/video/bvyHx-C2Xfs/v-deo.html
check this video too:
Test CAN BUS With a Multimeter | Quick & Easy | CAN Bus Resistance, Voltage & Short to Ground Test
ua-cam.com/video/1hGhhu2uc4Y/v-deo.html
This was very good, Keep up the good work guys.
Thanks
Ok. So I am at the very beginning stages of Picoscope diagnosis. I understand how to see a good can high and low… in my case I have an intermittent Can high issue. I can see the waveform change when the issue happens.. so now, question is, what do i do next to narrow down the location of the issue/cause of the issue? Can you recommend another video?
Nice work keep it up always from india
Thanks a lot and a big hello to all friends in India 🙏🙏🙏
Nice job, please post a waveform from the ignition system as well. Thanks
Thanks. Sure, very soon hopefully
which picoscpe model you use that is suitable for testing can bus ?
This one was Hantek, it can measure the waveform of CAN-Bud as well but there are better options in the market.
Good work, but please how did you create the short to ground on CAN high,i mean the connection
Thanks, I actually had no commutation with many units on my scan tool which can be from the CAN-Bus, so when I checked it, I saw that somebody screwed another wiring harness under the dash which caused short to ground on CAN-Bus as CAN-High insulator had been damaged by that screw. I removed the screw but before fixing the damaged wire, I made this video and used a piece of wire and an alligator clip to show the fault to you guys.
@@AutomotiveDiagnosis so please did you back probe the CAN high wire with the alligator clip
You can do that to see how short to ground in the CAN-High can affect the CAN-Low.
@@AutomotiveDiagnosis okay thanks for your help