DTC P1345 - Camshaft Position Sensor, No SGC Signal: Condition

WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when there is no SGC signal input from Camshaft Position (CMP) sensor while engine is running. Possible causes are:

CMP sensor malfunction.
Open or short circuit between main relay and terminal "B" on CMP connector.
Open or short circuit between terminal No. 4F on Engine Control Module (ECM) connector and terminal "C" on CMP connector.
Open or short circuit between terminal No. 4D on Engine Control Module (ECM) connector and terminal "A" on CMP connector.