Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC PRIORITY
If DTC P052A, P052B, P052C and P052D is displayed with DTC P0075 or P0081, first perform the confirmation procedure for DTC UXXXX or P0607.

Is applicable DTC detected?

YES

Perform diagnosis of applicable.
- DTC P0075: Refer to DTC Description .
- DTC P0081: Refer to DTC Description .
NO

GO TO 2.
INSPECTION START
With CONSULT

GO TO 3.

Without CONSULT

GO TO 4.

CHECK VTC POSITION

With CONSULT

Turn ignition switch ON.
On the CONSULT screen, select "ENGINE" >> "DATA MONITOR" >> "COOLAN TEMP/S".
Check that the "COOLAN TEMP/S" indication value is between -5°C (23°F) and 45°C (113°F).
Start engine and wait at least 5 seconds.
On the CONSULT screen, select "ENGINE" >> "DATA MONITOR" >> "INT/V TIM (B1)".

Check that the data monitor item indicates as follows:

Item	Value (°CA)
INT/V TIM (B1)	10 ± 2
INT/V TIM (B2)	10 ± 2

Is the inspection result normal?

YES

INSPECTION END

GO TO 5.

CHECK OIL PRESSURE WARNING LAMP

Start engine.

Check that oil pressure warning lamp is not illuminated.

Courtesy of NISSAN NORTH AMERICA, INC.

Is oil pressure warning lamp illuminated?

YES

Refer to Inspection .

GO TO 6.

CHECK INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE
Perform Component Inspection of the intake valve timing intermediate lock control solenoid valve. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace error-detected parts.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Perform Component Inspection of the intake valve timing control solenoid valve. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 7.

NO

Repair or replace error-detected parts.
CHECK CRANKSHAFT POSITION SENSOR
Perform Component Inspection of the crankshaft position sensor. Refer to Component Inspection (Crankshaft Position sensor)

Is the inspection result normal?

YES

GO TO 8.

NO

Repair or replace error-detected parts.
CHECK CAMSHAFT POSITION SENSOR
Perform Component Inspection of the camshaft position sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 9.

NO

Repair or replace error-detected parts.

CHECK CAMSHAFT (INTAKE)

Check the following.

Accumulation of debris on the signal plate of camshaft front end

Courtesy of NISSAN NORTH AMERICA, INC.

Chipping signal plate of camshaft front end

Is the inspection result normal?

YES

GO TO 10.

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 misalignment.

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

YES

Check timing chain installation. Refer to Removal and Installation .

NO

GO TO 11.
CHECK LUBRICATION CIRCUIT
Perform "Inspection of Camshaft Sprocket (INT) Oil Groove". Refer to Inspection after Installation .

Is the inspection result normal?

YES

INSPECTION END

NO

Clean lubrication line.