CMP (Camshaft Position) Sensor On-Vehicle Inspection

Disconnect connector of CMP sensor.
Turn ignition switch to ON position and check that voltage of CMP 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 Camshaft Position Sensor Connector Terminal
Courtesy of SUZUKI OF AMERICA CORP.
Check that CMP sensor signal is output properly. See INSPECTION OF ECM AND ITS CIRCUITS .
If faulty condition is found, check the following.
- Wire harness and connections
- CMP sensor: See CMP (CAMSHAFT POSITION) SENSOR INSPECTION .