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2010 Silverado bus signal waveform

  • Burtbros
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3 years 5 months ago #61209 by Burtbros
2010 Silverado bus signal waveform was created by Burtbros
Picking up crazy wave form on a 2010 Silverado.
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3 years 5 months ago #61215 by Chad
Replied by Chad on topic 2010 Silverado bus signal waveform
Looks like CAN Bus packets.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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3 years 5 months ago #61217 by Cheryl
Replied by Cheryl on topic 2010 Silverado bus signal waveform
Does it start and run? Gm can bus waveforms usually are a little noisy

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3 years 5 months ago #61258 by Burtbros
Replied by Burtbros on topic 2010 Silverado bus signal waveform
Here’s some more pictures. The can bus signal was picking up the fuel pump waveform for some reason? I watch a video to do a math channel A-B. If that pattern looks normal your canbus signal probably ok. Anyways it wind up being the torque converter. The truck had no power in gear at times. It had no codes.
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3 years 5 months ago #61261 by George Uk
Replied by George Uk on topic 2010 Silverado bus signal waveform
I seems that you are looking for problems where there are not any.

The car is a very "noisy" environment and a good scope will pick that up so you need to make adjustments and be able see past that.


If your CAN signals were not good your car would be in all kinds of trouble and you WOULD know about it.


I've seen Laptop Chargers, Battery Chargers, Poor Building Electrics cause noise that a scope will pick up.


Is there any issue with the car or are you just exploring ?

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