DTC P0335 - Crankshaft Position Sensor Circuit Malfunction: 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 NE signal input from Crankshaft Position (CKP) sensor while engine is running. Possible causes are:

CKP sensor malfunction.
Open or short circuit between terminal No. 4AH on Engine Control Module (ECM) connector and terminal "A" on CKP connector.
Open or short circuit between terminal No. 4AL on Engine Control Module (ECM) connector and terminal "B" on CKP connector.