Nissan Qashqai J11. Manual - part 510

EC9-196

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0101 MAF SENSOR

P0101 MAF SENSOR

DTC Logic

INFOID:0000000010309107

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DIAGNOSIS PROCEDURE

NOTE:
DTC P0101 can not duplicate.

>> Proceed to 

EC9-196, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010309108

1.

CHECK INTAKE SYSTEM

1.

Check air cleaner for clogging.

2.

Check the following for connection and cracks.

-

Air  duct

-

Vacuum hoses

-

Intake air passage between air duct and intake manifold

-

Turbocharger

-

Turbocharger boost sensor

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning part.

2.

SOAK THE VEHICLE

1.

Soak the vehicle for 8 hours.
NOTE:
When the engine is already cold condition, proceed to next step.

2.

Turn ignition switch ON.

3.

Check that the detecting value of TC boost sensor is same as the detecting value of barometric pressure
sensor using CONSULT.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace TC boost sensor.

3.

CHECK COHERENCE

1.

Check coherence between intake air temperature, ambient temperature, and engine coolant temperature.

2.

Check that intake air temperature is equal to ambient air temperature (

±

10

°

C).

Is the inspection result normal?

YES

>> Replace mass air flow sensor.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0101

AIR FLOW SENSOR INFOR-
MATION
(Mass or volume air flow “A” cir-
cuit range/performance)
• 1.DEF: SIGNAL OUTSIDE 

UPPER LIMIT

• 2.DEF: SIGNAL OUTSIDE 

LOWER LIMIT

ECM receives improper signal voltage sent 
from MAF sensor for more than 5 seconds 
during driving condition.

• Harness or connectors
• Mass air flow sensor
• Turbocharger boost sensor
• Intake air temperature sensor 2
• Intake air leaks

P0105 TC BOOST SENSOR

EC9-197

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

P0105 TC BOOST SENSOR

DTC Logic

INFOID:0000000010309110

DTC DETECTION LOGIC

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 

EC9-197, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309111

1.

CHECK TURBOCHARGER BOOST SENSOR

Check turbocharger boost sensor. Refer to 

EC9-198, "Component Inspection (Turbocharger Boost Sensor)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace error-detected parts.

2.

CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check the power supply of the turbocharger boost sensor.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis for power supply circuit.

3.

CHECK TURBOCHARGER BOOST SENSOR CIRCUIT FOR OPEN AND SHORT

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0105

INLET MANIF PRS SEN 
CIRC
(Manifold absolute pressure/
barometric pressure circuit)
• 1.DEF: VOLTAGE TOO 

LOW

• 2.DEF: VOLTAGE TOO 

HIGH

• 3.DEF: SIGNAL INCO-

HERENCE

• 4.DEF: IMPROPER SIG-

NAL SHAPE

• An excessively low voltage from Tur-

bocharger Boost sensor is sent to 
ECM for 1 second or more.

• An excessively high voltage from 

Turbocharger Boost sensor is sent 
to ECM for 1 second or more.

• Harness or connectors

(TC boost sensor circuit is open or shorted.)

• TC boost sensor

+

-

Voltage

(Approx.)

Turbocharger boost sensor

Connector

Terminal

F121

3

Ground

5.0 V

EC9-198

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0105 TC BOOST SENSOR

1.

Turn ignition switch OFF.

2.

Check turbocharger boost sensor circuit for open and short.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

Component Inspection (Turbocharger Boost Sensor)

INFOID:0000000010309112

1.

CHECK TURBOCHARGER BOOST SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect turbocharger boost sensor harness connector.

3.

Check resistance between turbocharger boost sensor terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace turbocharger boost sensor.

+

-

Continuity

ECM

Turbocharger boost sensor

Connector

Terminal

Connector

Terminal

F82

59

F121

3

Existed

81

1

85

4

Turbocharger boost sensor

Resistance

+

-

Terminal

4

1

More than 50 k

Ω

P0106 TC BOOST SENSOR

EC9-199

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

P0106 TC BOOST SENSOR

DTC Logic

INFOID:0000000010309113

DTC DETECTION LOGIC

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.

Start engine and let it idle for at least 5 second.

2.

Check DTC.

Is DTC detected?

YES

>>

EC9-199, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309114

1.

CHECK TURBOCHARGER BOOST SENSOR FITTING CONDITION

Check turbocharger boost sensor fitting condition.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Adjust parts fitting condition.

2.

CHECK FOR CHARGE AIR LEAK

1.

Start the engine and let it idle.

2.

Listen for an charge air leak.

Is intake air leak detected?

YES

>> Repair or replace error-detected parts.

NO

>> GO TO 3.

3.

CHECK TURBOCHARGER

Check if foreign matter is caught between the turbocharger. Refer to EM section.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Remove the foreign matter and clean the turbocharger.

4.

CHECK TURBOCHARGER BOOST SENSOR HARNESS CONNECTOR CONNECTIONS

Check turbocharger boost sensor harness connector connection.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0106

INLET PRESSURE CONSIS-
TENCY
(Manifold absolute pressure/
barometric pressure circuit 
range/performance) 
• 1.DEF: SIGNAL INCO-

HERENCE

Difference between intake manifold air 
pressure and barometric pressure for 2 
seconds while engine stopped.

• Harness or connectors
• TC boost sensor