GM Serial 2 Diagnostics: 2006 Chevy Silverado using a Multimeter

[@frankbinsley1315]

Thank you so much. I dont own a scope either and im dealing with class 2 comm issues on my 06 envoy 5.3..thank you so much

[@ranger.auto.repair]

Your welcome!

[@The501SWAGG]

I have a 2004 z71 my question is , is the check engine light supposed to illuminate when starting because mine doesn't like in the video , and I have codes for u1000 and u1096 ,

[@thelordshumbleservant]

All data lines use a 7 volt signal on those trucks

[@WillFull_Truth]

How do I sync the different modules? What if I just unplugged them do I still need to sync them but how do I do that?

[@ranger.auto.repair]

I’m not sure they can be synced, if you’ve got a bad module it may or may not need to be programmed to the bcm.

[@WillFull_Truth]

Thanks

[@dozieautomechanics1117]

Good morning sir, please can you help me with the wiring diagram of 2006 Chevy express with 6.0l, I'm having U1000 code on the abs module while other modules don't communicate. Please help me.

[@ranger.auto.repair]

If you can find a diagram for splice pack 201 follow how I did it in the video, or if you can get a diagram start pulling fuses until you find the offending sensor. As for diagrams I don’t know how much help I can be.

[@JOSK2303]

1300 no lights besides that everything seems to work fine it says low voltage so I’m confused what issues I could have , I had the window open and it did get slightly went on the inside and I have a small leak at third break light

[@JOSK2303]

I have eedm596fk

[@howardiko7156]

400 mill-i-volts. Hey a scope from china would cost half what that Snap On was.

[@ranger.auto.repair]

How do you figure when my meter was free and it got the job done? I’d never use a scope especially one from china.