Camshaft Position Sensor: Testing and Inspection

INSPECTION

FUNCTION AND OPERATION PRINCIPLE
Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can't detect. The two CMPS are installed on engine head cover of bank 1 and 2 and uses a target wheel installed on the camshaft. This sensor has a hall-effect IC which output voltage changes when magnetic field is made on the IC with current flow. So the sequential injection of the 6 cylinders is impossible without CMPS signal.









SPECIFICATION






WAVEFORM





SCHEMATIC DIAGRAM





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

Specification: Refer to "WAVE FORM"