Component Inspection

Engine Control
P0335 Crankshaft Position Sensor \'A\' Circuit - Inspection/Repair:_:Component Inspection

Component Inspection

1. Set up an oscilloscope as follows :
(1) Channel A (+): Signal terminal of the CMPS #1(back probe), (-): ground
(2) Channel B (+): Signal terminal of the CKPS(back probe), (-): ground
2. Start the engine and check for signal waveform compared with reference waveform as below.




1 There are 60 signals of CKPS(Including missing tooth) during the semi-cycle of CMPS #1.
2 There are 3 - 5 signals of CKPS between the switching point of CMPS #1 and the missing tooth of CKPS.








3. Is the signal waveform normal?