Nissan Qashqai J11. Manual - part 296

P0014 EVT CONTROL

ECM-161

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

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-41, "Intermittent Incident"

.

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

>> Proceed to 

ECM-161, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010702889

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 

ECM-173, "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-22, "Inspection"

.

NO

>> GO TO 3.

3.

CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

ECM-174, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

EM-183, "Exploded

View"

.

4.

CHECK CRANKSHAFT POSITION SENSOR

Refer to 

ECM-261, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning crankshaft position sensor. Refer to 

EM-222, "Exploded View"

.

JSBIA5009GB

PBIA8559J

ECM-162

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0014 EVT CONTROL

5.

CHECK EXHAUST VALVE TIMING CONTROL POSITION SENSOR

Refer to 

ECM-162, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

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

EM-196, "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-197,

"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-194, "Inspection"

.

NO

>> GO TO 8.

8.

CHECK LUBRICATION CIRCUIT

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

EM-200, "Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Clean lubrication line.

Component Inspection

INFOID:0000000010702890

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-183, "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 

Ω

 (at 20

°

C)

1

Ground

Not exist

2

P0014 EVT CONTROL

ECM-163

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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ECM

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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-183, "Exploded

View"

.

JMBIA0097ZZ

ECM-164

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0031, P0032 A/F SENSOR 1 HEATER

P0031, P0032 A/F SENSOR 1 HEATER

DTC Description

INFOID:0000000010702891

DTC DETECTION LOGIC

POSSIBLE CAUSE

P0031

• Harness or connectors (The A/F sensor 1 heater circuit is open or shorted.)
• The A/F sensor 1 heater

P0032

• Harness or connectors (The A/F sensor 1 heater circuit is shorted.)
• The A/F sensor 1 heater

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for at least 10 seconds.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

ECM-164, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010702892

1.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect air fuel ratio (A/F) sensor 1 harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between A/F sensor 1 harness connector and ground.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0031

A/F SEN1 HTR (B1)
(HO2S heater control circuit low bank 1 
sensor 1)

An excessively low voltage signal is sent to ECM through the A/F sensor 1 
heater.

P0032

A/F SEN1 HTR (B1)
(HO2S heater control circuit high bank 1 
sensor 1)

An excessively high voltage signal is sent to ECM through the A/F sensor 
1 heater.

+

Ground

Voltage

A/F sensor 1

Connector Terminal

F74

4

Ground

Battery voltage