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2012 GMC Sierra 1500 SLE, ECM/Inputs/Outputs Photo
Posted to the Waveform Library on 10/27/2016

Showing number of teeth between crank trigger and cam signal switch. This shows the cam signal switching from low to high at the end of the 3rd crank tooth after the crank trigger. The known good pattern shows it happening at the beginning of the second tooth....

 

car Vehicle Data

2012 GMC Sierra 1500 SLE 5.3L

Engine5.3 L / 8 cyl / FLEX
Trans6-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component,
ConditionUnknown

car Vehicle Data

2012 GMC Sierra 1500 SLE 5.3L

Engine5.3 L / 8 cyl / FLEX
Trans6-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component,
ConditionUnknown