Hyundai Elantra MD/UD: Inspection - Crankshaft Position Sensor (CKPS). Repair 
procedures - Engine Control System - Fuel System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra MD/UD: Inspection

Check signal waveform of CKPS and CMPS using a scan tool.

Specification: Refer to “Waveform”

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the crankshaft position sensor connector (A) ...