Crankshaft Position Sensor: Description

WARNING: This page is about a different car, the 2005 Dodge SX, 2005 Dodge SRT-4, and 2005 Dodge Neon. However, it is still accessible from the selected car via links, so may be relevant.

The crankshaft position sensor mounts to the engine block near the starter. See Fig 1.

Fig 1: Crankshaft Position Sensor

Courtesy of DAIMLERCHRYSLER CORP.

The PCM uses the Crankshaft Position sensor to calculate the following:

Engine RPM
TDC number 1 and 4
Ignition coil synchronization
Injector synchronization
Camshaft-to-crankshaft misalignment (Timing belt skipped 1 tooth or more diagnostic trouble code).