Camshaft Position Sensor (CMPS): Troubleshooting: Waveform
Courtesy of KIA MOTORS AMERICA, INC.
The square wave signal should be smooth and without any distortion. Refer to "CKPS" and "CMPS" shown in Fig 1.
The CMPS falling (rising) edge is coincided with 3~5 tooth of the CKP from one longer signal (missing tooth). Refer to "Falling Edge" and "Rising Edge" shown in Fig 1.