Crankshaft Position Sensor: Testing and Inspection

INSPECTION

Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system. If there is no CKPS signal input, fuel is not supplied. That is, vehicle can't run without CKPS signal. This sensor is installed on transaxle housing and generates alternating current by magnetic flux field which is made by the sensor and the target wheel when engine runs. The target wheel consists of 58 slots and 2 missing slots on 360 degrees CA (Crank Angle).






WAVEFORM





CIRCUIT DIAGRAM





COMPONENT INSPECTION
1. Check signal waveform of CKPS and CMPS using a scantool.

Specification : Refer to "WAVE FORM"