PR25DD engine

If DTC P0335 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?

YES

Perform diagnosis of applicable. Refer to DTC Index .

NO

GO TO 2.

1. Disconnect crankshaft position (CKP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between CKP sensor harness connector and ground.

   +		-	Voltage (Approx.)
   CKP sensor
   Connector	Terminal
   F30	1	Ground	5 V

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between CKP sensor harness connector and ECM harness connector.

   +		-		Continuity
   CKP sensor		ECM
   Connector	Terminal	Connector	Terminal
   F30	2	F91	17	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace error-detected parts.

1. Check the continuity between CKP sensor harness connector and ECM harness connector.

   +		-		Continuity
   CKP sensor		ECM
   Connector	Terminal	Connector	Terminal
   F30	3	F91	16	Existed

2. Also check harness for short to ground and to power.

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace error-detected parts.

Check the crankshaft position sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 6.

NO

Replace crankshaft position sensor. Refer to Exploded View .

1. Remove crankshaft position sensor. Refer to Exploded View .
2. Look into the mounting hole of the crankshaft position sensor to check that there is no missing gear tooth in the signal plate .

   Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Replace the signal plate. Refer to Exploded View .