Crankshaft Position Sensor (CKPS): Troubleshooting: Waveform

WARNING: This page is about a different car, the 2018 Kia Forte5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Scantool Display - Crankshaft Position Sensor And Camshaft Position Sensor Waveform

Courtesy of KIA MOTORS AMERICA, INC.

This example displays a typical Crankshaft Position Sensor (CKPS) and Camshaft Position Sensor (CMPS) waveform at idle. The PCM controls the injection and ignition timing by using these signals.

Generally CKPS signal is used to detect the piston's position and CMPS signal is used to detect the Top Dead Center of each cylinder.