Hi , I'm wondering if you can help me I've got a P1695 CAN communication Bus fault the info says it's a communication bus fault ( PCM / FIP ) the DTC may be caused by open / short circuit to ground or battery , check wiring from battery to FIP carry out CAN test , I've checked ground to battery and I've checked wiring to FIP it's got a 12v feed to the pump but I'm stuck and have no idea what to check now , any advice would be appreciated my vehicle is a 2004 LDV convoy minibus .

maja aagaya

This is brilliant, thank you!

The video is so good but Jesus, the ASMR mouth noises were driving me insane. Your mic might just be a bit too good

Fantastic explanation of CAN BUS. The section on arbitration is very well laid out and lacking in other tutorials

This is valuable stuff.

What is the tool that you are using for your drawings in this video?

Thanks very informative

Explained brilliantly.best video out there

Curious as to what program you are using for the illustrating? Also an excellent explanation of CAN.

Can some one explain how to write data frames in the PlC, specially in Siemens

Very helpful thanks for sharing ❤

How is control of BUS determined ?

I first fell in love with CAN bus when I found out a message collision doesn't stop the high priority message from getting through without interference! The lower priority just backs off and the high priority message goes out unimpeded. (Unlike ethernet, where EVERY transmitter in a collision has to back off and wait a random time before retry).

FANTASTIC VIDEO!!

Thank you for your sharing, this video is very helpful.

Hi, do you always have to reconfigure the pdm after the update? or you can load a previously saved configuration after the pdm update? thanks

And what is the voltage of idle state - when no device is transmitting? Is that 0 or 2.5V?

There are to things which are interesting but where not covered in the film (which was very cool and informative btw. :)) 1. How is the bitrate/sampling time aligned? 2. How does the fault detection work and when retransmission is forced?

It would be nice to have a video on what are the required components needed to setup a CAN network. From physical connection to configuring software and see simple indication for all the components. Thank you

very educative. Thank you Regards

Reminds me of 1553B

19:50

please improve your voice

Never liked can bus. MIL-STD-1553 much better. Too bad all the efforts to create a high speed version of it failed.

Fantastic explanation for a home gamer. Thank you!

Dear all. Regarding the canHigh and canLow please take a looke at en.wikipedia.org/wiki/CAN_bus and a figure of canHigh and canLow from the same page: en.wikipedia.org/wiki/CAN_bus#/media/File:ISO11898-3_Waveform.svg This is different from explained here. The whole idea is that (canHigh - canLow) is "1" and recessive when canHigh i low ~ 0v (and recessive) and canLow is high ~ 5V (and dominant). Neither canLow og canHigh will never be 2.5V ! This is a very common mistake.

That was absolutely brilliant, well explained... I'm a hgv fitter that has been out of the trade for 20yrs...I feel like I have a understanding of can bus...thank you...👌👍

Super interesting! Watched both videos. don’t work with Canbus on my job but now want to find a project to do something with this knowledge you have imparted on me

Excelent video, I needed this so much

We spell it Cannabis, but I think it's pronounced the same.

I am very impressed with the way this guy breaks down all of the information in this video. He should teach for a living 👍

I know what a can of tuna is for. A can of oil,, but how do you get a BUS in a Can?

Thanks for this. i'm trying to understand so i can fix my own vehicles. thinking out loud here... Terminator resistors absorbs the electrical energy of the signal as it reaches the ends of cable and avoids reflection of signals. So it doesn't become noise. this is similar to BNC type networking cabling back in the 80s-90s. usually theres a limit to the length bec the signal can degrade to unusable or too noisy beyond that length. twisted pair cabling is whats in use in networking today. as he explained. twisting it helps cancel out the EM field each wire generate and make the signal cleaner and go further. right hand rule and such of EM fields moving in a direction. differential signalling is brilliant! i believe it would be educational for people to learn networking concepts as they are very similar.

Hi everybody, I have a Honda civic 2010 coupe is false error link when I setup ODB2 scan then I probed CAN-H and CAN-L look ok but L-line is a straight line 9 volt dc, it has no wave form during ignition is on or engine is running. I am not sure what it should look like before I continue to chase it down to find the problem. Anyone has any suggestion please!!! thank you every much. I don't want to bring it to the shop or dealer because the value of my car might be cheaper than the cost to repair.

I'd you could mute out mouth noise between sentance in your future videos. Make it very hard to lisen too thanks

awesome explanation

One of the best videos on explaining this topic. Very well done.

A white pointer on your mouse would be great

If every node needs to be within 30cm (12 inch) how does the OBDII can works? It is far from the ECU, does that mean the man can bus wire run all the way to the ECU? Also how does rhiw change with ECU (motec) that have multiple can ports? Can you make multiple can bus branch? Like, a pair lf teeminating resistor in each for port? Or the port are internally comnected at inside the ECU and you still only need 1 pair of resistor for the whole network?

How to bypass can wire discanect scr system

How to bypass can wire discanect scr system

Thanks! great video... and very clear. I like the 'chalkboard' approach. You do it well.

Loved the video, had almost 0 experience at the area, and understoo everything clearly !

So good please don't stop making videos. Regardless of what topic it is. You are a naturally born teacher.

Fantastic video.

Brilliant. Thank you. Just the part about why differential pairs are immune to noise is worth the price of admission.

Signal processing, noise, transmission. huhhh all in one intro. you are a gun man.

Thank you so much for such a well done and informative video. Thank you.

Post video new basic lessons sir