Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

2003 Avalanche 5.3 - No start

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4 years 11 months ago #49184 by diywrencher9
2003 Avalanche 5.3 - No start was created by diywrencher9
Can anyone provide a snapshot of the waveform produced by the Hall effect sensor in the ignition switch?  2003 Avalanche 5.3.  I suspect I have an intermittent problem here.  I’m curious to know if you get one square wave per crank or does the crank signal repeat itself many times until  the BCM recognizes the signal and gives the OK to start??

Hey Scannerdanner....would it be possible to make a video of the above??  

Thanks......diywrencher9





 

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