GM Class 2 high no communication 2004 Impala 

Yeah I would like to see a review of that scope. Great video thank you.

I have seen where the harness gets pinched behind the Aftermarket radio and shorts the data wire to ground. Also on those old Impalas, the Airbag module under the passenger seat gets soaked with water and kills the bus. Great video!

Another great diagnostic video. This is why I watch RU-vid videos. Thank you for sharing.

Probably not the first time you have come across some aftermarket device causing trouble. Great video! Thanks.

TOP CLASS TEACHING JOB , I ONLY WISH I COULD GET THIS KIND OF TEACHING ONLINE THANK YOU BRIAN AND PLEASE KEEP UP THE GREAT WORK SIR .

Great content Brian! Man you’re modest about your videos! You’re better than good brother!!

Thanks Brian. From South Houston.

Good stuff Brian. I look forward to seeing you at Super Saturday

Great video. Definitely would like to see more. Thanks for sharing 👍

Great video! Keep them up.

Hi sir I have her h2 hummer not starting class 2 malfunction..can you help or advice me what to do

Great video Brian thanks

I'm just trying to get it to pass E-Check, but once the drive cycle is complete my security light keeps flashing in my information window and the radio won't come on, someone put an aftermarket radio in the vehicle and I believe that's what's causing the problem, it won't communicate with the E-Check kiosk computer, but my scan tool works. .no problem starting tho

What’s the fix if the aftermarket stereo is doing something to the class 2 network?

Definitely like to see the review of that Hantek scope. I've started looking at them.

Brian,enjoying your networking videos. Following Maic Salazar who is giving a small on line course on what to look for and how to test PCM/ECM/TCM plus some repair and PCM schematic read outs. I have purchased some bread boards and components and hopefully get into creating some test gear. I've looked at arduano but really don't know where to start.Is there a beginning project to get some knowledge as to exactly what they are and which ones are suited for automotive. I apologize for the questions but if I get a good starting point I'm very capable at self learning. Been a mechanic my whole life just not on the advanced electronics end. Thanks for the schematic reading that's starting to click. Thanks Brian ❤️ Brian can you explain a splice pack comb. I believe my 2007 3.5 odyssey has one under the hood but need to know more what I am looking for. Thanks

Review the scope brian

Nice !

I have a question Brian about testing through the splice connector. I don't get to see these here in Belgium. So I have no experience with it. If I understand this right you're just jumping pin 2 from DLC to the pcm because your scope is connected to your break out box. Without it you could just go straight to the pcm wire with your scope lead? I also saw a video from a while ago on trained by techs where Keith Perkins does the testing with a spliced together wiring harness and actually starts by adding the different modules one at a time to the network. Now he also mentions that the pcm and bcm provide a 7 volts bias so you have to start with one of them first before adding other modules. So this is where I get confused. If that's the case you can not jump the modules one at a time from DLC pin 2 (except pcm and bcm) or measure each wire individually at the splice connector. Is this correct?

Is that standard pin 2 for most all 7 v We’re working on a 2007 civic , ho ho,ho , yes Santa id love to own that scanner because if I can’t resolve this Issue I must sell the car