Nissan X-Trail 32. Manual - part 969

P0106 TC BOOST SENSOR

EC-1005

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace turbocharger boost sensor.

Turbocharger boost sensor

Resistance

+

-

Terminal

4

1

More than 50 k

Ω

EC-1006

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0110 IAT SENSOR

P0110 IAT SENSOR

DTC Description

INFOID:0000000010935675

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Intake air temperature sensor 1 circuit is open or shorted.)
• Intake air temperature sensor 1

FAIL-SAFE

• Boost pressure limitation
• EGR valve is closed position
• Throttle control motor is opened

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-1006, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010935676

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK MASS AIR FLOW SENSOR HARNESS CONNECTOR CONNECTIONS

Check mass air flow sensor (with intake air temperature sensor 1) harness connector connection.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT FOR OPEN AND SHORT

Check intake air temperature sensor 1 sensor circuit for open and short.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0110

AIR TEMP SEN/CIRC
(Intake air temperature sensor 1 circuit 
bank 1)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH

• An excessively low voltage from Intake air temperature sensor 1 is sent 

to ECM for 1 second.

• An excessively high voltage from Intake air temperature sensor 1 is sent 

to ECM for 1 second.

P0110 IAT SENSOR

EC-1007

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTAKE AIR TEMPERATURE SENSOR 1

Refer to 

EC-1007, "Component Inspection (Intake Air Temperature Sensor 1)"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace error-detected parts.

Component Inspection (Intake Air Temperature Sensor 1)

INFOID:0000000010935677

1.

CHECK INTAKE AIR TEMPERATURE SENSOR 1

1.

Disconnect mass air flow sensor harness connector.

2.

Check resistance between mass air flow sensor terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace mass air flow sensor (intake air temperature sensor 1).

+

-

Continuity

ECM

Mass air flow sensor

Connector

Terminal

Connector

Terminal

F117

74

F152

1

Existed

82

2

Mass air flow sensor

Condition

Resistance

+

-

Terminal

1

2

Temperature

°

 C (

°

F)

20 (68)

2.342 – 2.531 k

Ω

EC-1008

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0115 ECT SENSOR

P0115 ECT SENSOR

DTC Description

INFOID:0000000010935678

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Engine coolant temperature sensor circuit is open or shorted.)
• Engine coolant temperature sensor

FAIL-SAFE

• Engine cooling fan operates at high speed while engine running when engine stopped and operates at low

speed.

• Engine speed limitation
• EGR valve is closed position
• Throttle control motor is opened
• Prohibit DPF regeneration
• EGR cooling valve activated

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 10 seconds.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-1008, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010935679

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK ENGINE COOLANT TEMPERATURE SENSOR HARNESS CONNECTOR CONNECTIONS

Check engine coolant temperature sensor harness connector connection.

Is the inspection result normal?

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0115

WATER TEMPERATURE SENSOR CIRC
(Engine coolant temperature sensor 1 cir-
cuit)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH
• 3.DEF: SIGNAL INCOHERENCE
• 4.DEF: IMPROPER SIGNAL SHAPE
• 5.DEF: CIRCUIT QUANTITY NOT 

PLAUSIBLE

• An excessively low voltage from Engine Coolant Temperature Sensor is 

sent to ECM for 1 second.

• An excessively high voltage from Engine Coolant Temperature Sensor is 

sent to ECM for 1 second.

• Engine coolant temperature changes rapidly for 8 seconds.