Crankshaft Position Sensor: Sorento

NOTE: DO NOT use OBD-II Data Link Connector (OBD-II DLC) for lab scope power source, as this will affect waveform.

Backprobing connect lab scope positive probe to ECM connector B01 terminal No. B3 (Blue/Orange wire) and negative probe to ground. See Figure. Start engine and allow it to reach normal operating temperature. With engine at idle, observe CKP waveform. Compare to normal waveform. See Figure. If CKP sensor waveform is erratic, replace CKP sensor.