Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
The PCM detects 25 out of the last 35 cam revolutions occur with 2 cam sensor pulses outside the CKP window.