DTC P0336: Crankshaft Position Sensor Circuit: Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The Crankshaft Position (CKP) sensor signal indicates the crankshaft speed and position. The CKP sensor is connected directly to the Powertrain Control Module (PCM). The circuits between the CKP sensor and the PCM consist of the following circuits: The CKP sensor 1 signal circuit and low reference circuit.