Crankshaft Position Sensor

The characteristics of the signal supplied by the crankshaft position (CKP) sensor are learned by the engine control module (ECM). This enables the engine control module (ECM) to set an adaption and support the engine misfire detection function. Due to the small variation between different drive plates and different crankshaft position (CKP) sensors, the adaption must be reset if either component is renewed, or removed and refitted. It is also necessary to reset the drive plate adaption if the engine control module (ECM) is renewed or replaced. The engine control module (ECM) supports four drive plate adaptions for the crankshaft position (CKP) sensor. Each adaption relates to a specific engine speed range. The engine speed ranges are detailed in the table below: