Crankshaft Position (CKP) Sensor On-Vehicle Inspection

Disconnect connector of CKP sensor wire with ignition switch turned off.

Fig 1: Identifying CKP Sensor Wire Connector
Courtesy of SUZUKI OF AMERICA CORP.
Turn ignition switch to ON position and check that voltage of CKP sensor wire connector (vehicle side) between terminals "1" and "2" is 4 - 6 V.
If faulty condition is found, check ECM power supply circuit, ECM ground circuit, wire harness between ECM and CKP sensor wire connector and connections.

Fig 2: Identifying CKP Sensor Wire Connector Terminals
Courtesy of SUZUKI OF AMERICA CORP.
Check that CKP sensor signal is outputted properly. See INSPECTION OF ECM AND ITS CIRCUITS .
If faulty condition is found, check the following.
- Wire harness and connections
- CKP sensor: See CRANKSHAFT POSITION (CKP) SENSOR INSPECTION .