DTC P1345: Crankshaft/Camshaft Position Sensor Correlation: Description
WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
This DTC monitors Crankshaft Position (CKP) and Camshaft Position (CMP) signals to determine if they are synchronized. If both signals are not observed by Powertrain Control Module (PCM) within a narrow time window, PCM will determine that an error has occurred.