DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK DTC PRIORITY
- If DTC P0014 or P0024 is displayed with DTC P0078, P0084, first perform the trouble diagnosis for DTC P0078, P0084.
- If DTC P0014 or P0024 is displayed with DTC P1078, P1084, first perform the trouble diagnosis for DTC P1078, P1084.
Is applicable DTC detected?

YES

Perform the diagnosis of the applicable. Refer to DTC Index .

NO

GO TO 2.

CHECK OIL PRESSURE WARNING LAMP

Start engine.

Check that oil pressure warning lamp is not illuminated.

G04073790

Courtesy of NISSAN NORTH AMERICA, INC.

Is oil pressure warning lamp illuminated?

YES

Refer to Inspection .

NO

GO TO 3.

CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE
Refer to Component Inspection (Echaust Valve Timing Control Solenoid Valve) .

Is the inspection result normal?

YES

GO TO 4.

NO

Replace malfunctioning exhaust valve timing control solenoid valve. Refer to Exploded View .
CHECK EXHAUST VALVE TIMING CONTROL POSITION SENSOR
Refer to Component Inspection (Exhaust Valve Timing Control Position Sensor) .

Is the inspection result normal?

YES

GO TO 5.

NO

Replace malfunctioning exhaust valve timing control position sensor. Refer to Exploded View .
CHECK CRANKSHAFT POSITION SENSOR
Refer to Component Inspection (Crankshaft Position Sensor) .

Is the inspection result normal?

YES

GO TO 6.

NO

Replace crankshaft position sensor. Refer to Exploded View .
CHECK CAMSHAFT POSITION SENSOR
Refer to Component Inspection (Camshaft Position Sensor) .

Is the inspection result normal?

YES

GO TO 7.

NO

Replace malfunctioning camshaft position sensor. Refer to Exploded View .

CHECK CAMSHAFT (EXH)

Check the following.

Accumulation of debris to the signal plate of camshaft front end

GNSJMBIA1571Z-571

Courtesy of NISSAN NORTH AMERICA, INC.

Chipping signal plate of camshaft front end

Is the inspection result normal?

YES

GO TO 8.

NO

Remove debris and clean the signal plate of camshaft front end or replace camshaft. Refer to Removal and Installation .

CHECK TIMING CHAIN INSTALLATION
Check service records for any recent repairs that may cause timing chain misaligned.

Are there any service records that may cause timing chain misaligned?

YES

Check timing chain installation. Refer to Removal and Installation .

NO

GO TO 9.
CHECK LUBRICATION CIRCUIT
Perform "Inspection of Camshaft Sprocket (EXT) Oil Groove". Refer to Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Clean lubrication line.