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Code reader will not connect to computer it does light up and try to scan

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Old 06-14-2023, 01:39 PM
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I finally got around to capturing some healthy class 2 serial data bus traffic with a portable O scope on my 2002 Blazer. Its a series of roughly 0-7V square wave pulses that constantly change. The vertical voltage scale is 2v per division,





George
 

Last edited by GeorgeLG; 06-14-2023 at 01:42 PM.
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