Nissan Versa

 Sedan Service Manual

Engine » Engine control system (EC) » P0014 EVT control
DTC Logic

DTC DETECTION LOGIC

NOTE: If DTC P0014 is displayed with DTC P0078, first perform trouble diagnosis for DTC P0078. Refer to EC, "DTC Logic".

DTC No.	Trouble diagnosis name (Trouble diagnosis content)	DTC detecting condition	Possible cause
U0014	EXH/V TIM CONTB1 (Exhaust valve timing control performance)	There is a gap between angle of target and phasecontrol angle degree.	Crankshaft position sensor Exhaust camshaft position sensor Exhaust valve timing control solenoid valve Accumulation of debris to the signal pickup portion of the camshaft Timing chain installation Foreign matter caught in the oil groove for exhaust valve timing control

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at idle.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDUREI

With CONSULT

1. Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using CONSULT.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady as possible.

4. Let engine idle for 10 seconds.
5. Check 1st trip DTC.

With GST

Follow the procedure "With CONSULT" above.

Is 1st trip DTC detected?

YES >> Proceed to EC, "Diagnosis Procedure"

NO >> GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDUREII

With CONSULT

1. Select "DATA MONITOR" mode of "ENGINE" using CONSULT.
2. Maintain the following conditions for at least 20 consecutive seconds.

CAUTION: Always drive at a safe speed.

    3.    Check 1st trip DTC.

With GST

Follow the procedure "With CONSULT" above.

Is 1st trip DTC detected?

YES >> Proceed to EC, "Diagnosis Procedure"

NO >> INSPECTION END

DTC Logic

Diagnosis Procedure

Component Inspection