Nissan X-Trail 32. Manual - part 762

 

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Nissan X-Trail 32. Manual - part 762

 

 

P0014 EVT CONTROL

EC-177

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

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P0014 EVT CONTROL

DTC Description

INFOID:0000000010775107

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Crankshaft position sensor
• Exhaust valve timing control position sensor
• Exhaust valve timing control solenoid valve
• Accumulation of debris to the signal plate of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for exhaust valve timing control

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P0014 is displayed with DTC P0078, first perform the trouble diagnosis for DTC P0078.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-190, "DTC Description"

.

NO

>> GO TO 2.

2.

PERFORM COMPONENT FUNCTION CHECK

NOTE:
• Use component function check to check the overall function of Exhaust valve timing control. During this

check, a 1st trip DTC might not be confirmed.

• If the cause is a temporal jamming of debris, it may be back to normal during the following procedure.
1.

Check service records for any recent repairs that may cause timing chain misalignment. If there are,
check timing chain installation first.

2.

Start engine and warm it up to normal operating temperature.

3.

Set the oscilloscope probe between ECM and ground.

4.

Record the wave pattern of the crankshaft position sensor signal and the exhaust valve timing control
position sensor signal at idling.

5.

Record the wave pattern of the crankshaft position sensor signal and the exhaust valve timing control
position sensor signal when the accelerator pedal is depressed quickly.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0014

EXH/V TIM CONT-B1
“B” Camshaft position - timing over-ad-
vanced or system performance bank 1)

There is a gap between angle of target and phase-control angle degree.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Device fix mode

• This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the refer-

ence position.

• The intake manifold runner control valve motor is turned OFF (intake manifold runner control 

valve opens).

ECM

Signal names

Connector 

+

Terminal

F7

48

44

Crankshaft position sensor

46

42

Exhaust valve timing control position sensor

EC-178

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0014 EVT CONTROL

6.

Compare both wave patterns and confirm that the exhaust valve timing control position sensor signal is
shifted to the back side.

Is the inspection result normal?

YES-1 >> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

YES-2 >> Confirmation after repair: INSPECTION END
NO

>> Proceed to 

EC-178, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010775108

1.

CHECK DTC PRIORITY

If DTC P0014 is displayed with DTC P0078, first perform the trouble diagnosis for DTC P0078.
Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-190, "DTC Description"

.

NO

>> GO TO 2.

2.

CHECK ENGINE OIL PRESSURE WARNING LAMP

1.

Start engine.

2.

Check that engine oil pressure warning lamp is not illuminated.

Is engine oil pressure warning lamp illuminated?

YES

>> Proceed to 

LU-9, "Inspection"

.

NO

>> GO TO 3.

3.

CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

EC-191, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace malfunctioning exhaust valve timing control solenoid valve. Refer to 

EM-67, "Exploded

View"

.

4.

CHECK CRANKSHAFT POSITION SENSOR

Refer to 

EC-279, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning crankshaft position sensor. Refer to 

EM-106, "Exploded View"

.

JSBIA5009GB

PBIA8559J

P0014 EVT CONTROL

EC-179

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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5.

CHECK EXHAUST VALVE TIMING CONTROL POSITION SENSOR

Refer to 

EC-179, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace malfunctioning exhaust valve timing control position sensor. Refer to 

EM-80, "Exploded

View"

.

6.

CHECK CAMSHAFT (EXH)

Check the following.
• Accumulation of debris to the signal plate of camshaft 

 rear end

• Chipping signal plate of camshaft front end
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Remove debris and clean the signal plate of camshaft

front end or replace camshaft. Refer to 

EM-81,

"Removal and Installation"

.

7.

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 

EM-78, "Inspection"

.

NO

>> GO TO 8.

8.

CHECK LUBRICATION CIRCUIT

Perform “Inspection of Camshaft Sprocket (EXT) Oil Groove”. Refer to 

EM-84, "Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Clean lubrication line.

Component Inspection

INFOID:0000000010775109

1.

CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE-1

1.

Turn ignition switch OFF.

2.

Disconnect exhaust valve timing control solenoid valve harness connector.

3.

Check resistance between exhaust valve timing control solenoid valve terminals as per the following.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace malfunctioning exhaust valve timing control solenoid valve. Refer to 

EM-67, "Exploded

View"

.

2.

CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE-2

1.

Remove exhaust valve timing control solenoid valve.

PBIA9557J

Exhaust valve timing control solenoid valve

Resistance

+

Terminal

1

2

6.7  -7.7 

 (at 20

°

C)

1

Ground

Not exist

2

EC-180

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0014 EVT CONTROL

2.

Provide battery voltage between exhaust valve timing control
solenoid valve terminals 1 and 2, and then interrupt it. Check
that the plunger moves as shown in the figure. 

CAUTION:

Do not apply battery voltage continuously for 5 seconds or
more. Doing so may result in damage to the coil in exhaust
valve timing control solenoid valve.
NOTE:
Always replace O-ring when exhaust valve timing control sole-
noid valve is removed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning exhaust valve timing control solenoid valve. Refer to 

EM-67, "Exploded

View"

.

JMBIA0097ZZ

 

 

 

 

 

 

 

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