CKP (Crankshaft Position) Sensor On-Vehicle Inspection

Disconnect connector of CKP sensor.
Turn ignition switch to ON position and check that voltage of CKP sensor connector (vehicle side) between terminals "1" and "2" is battery voltage.
If faulty condition is found, check power supply circuit, ground circuit and connections.

Fig 1: Identifying Crankshaft Position Sensor Connector Terminal
Courtesy of SUZUKI OF AMERICA CORP.
Check that CKP sensor signal is output properly. Refer to INSPECTION OF ECM AND ITS CIRCUITS
If faulty condition is found, check the following.
- Wire harness and connections
- CKP sensor: Refer to CKP (Crankshaft Position) Sensor Inspection