Nissan Qashqai J11. Manual - part 512

EC9-204

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0115 ECT SENSOR

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to 

EC9-204, "Component Inspection (Engine Coolant Temperature Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts.

Component Inspection (Engine Coolant Temperature Sensor)

INFOID:0000000010309121

1.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

1.

Disconnect engine coolant temperature sensor harness connector.

2.

Check resistance between engine coolant temperature sensor terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine coolant temperature sensor.

+

-

Continuity

ECM

Engine coolant temperature 

sensor

Connector

Terminal

Connector

Terminal

F83

129

F51

2

Existed

133

1

Engine coolant temperature sensor

Condition

Resistance

+

-

Terminal

2

1

Temperature

°

C (

°

F)

25 (77)

2.140 – 2.364 k

Ω

P0120 TP SENSOR

EC9-205

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

P0120 TP SENSOR

DTC Logic

INFOID:0000000010309122

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 

EC9-205, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309123

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 ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNECTIONS

Check electric throttle control actuator harness connector connection.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR FITTING CONDITION

Check electric throttle control actuator fitting condition.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Adjust parts fitting condition.

4.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT

Check electric throttle control actuator circuit for open and short.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0120

INLET AIR FLAP POSITION SEN
(Throttle/pedal position sensor/
switch “A” circuit)
• 1.DEF: SIGNAL INCOHER-

ENCE

• Throttle position sensor voltage sent to 

ECM is 4.8 V or more for 0.5 second or 
more.

• Throttle position sensor voltage sent to 

ECM is 0.2 V or less for 0.5 second or 
more.

• Harness or connectors

(Throttle position sensor circuit is open 
or shorted.)

• Throttle position sensor
• Electric throttle control actuator

EC9-206

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0120 TP SENSOR

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK THROTTLE POSITION SENSOR

Refer to 

EC9-206, "Component Inspection (Throttle Position Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts.

Component Inspection (Throttle Position Sensor)

INFOID:0000000010309124

1.

CHECK THROTTLE POSITION SENSOR

1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Perform 

EC9-149, "Work Procedure"

.

4.

Turn ignition switch ON.

5.

Set selector lever to D position. 

6.

Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning electric throttle control actuator.

+

-

Continuity

ECM

Electric throttle control actu-

ator

Connector

Terminal

Connector

Terminal

F83

103

F116

2

Existed

107

3

108

1

ECM

Condition

Voltage (V)

Connector

+

–

Terminal

F83

107

103

Accelerator pedal: Fully released

More than 0.425

Accelerator pedal: Fully depressed

Less than 4.760

P0135 A/F SENSOR HEATER

EC9-207

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

P0135 A/F SENSOR HEATER

DTC Logic

INFOID:0000000010309130

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 10 seconds.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC9-207, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309131

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 AIR FUEL RATIO (A/F) SENSOR HARNESS CONNECTOR CONNECTIONS

Check A/F sensor harness connector connection.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK A/F SENSOR HEATER CIRCUIT FOR OPEN AND SHORT

Check A/F sensor circuit for open and short.

Is the inspection result normal?

DTC No.

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P0135

PROPOR RICH SEN 
HEAT CIRC
(O2 sensor heater circuit 
bank 1 sensor 1)
• CC.0: SHORT CIR-

CUIT TO EARTH

• CC.1: SHORT-CIR-

CUIT TO +12V

• CO: OPEN CIRCUIT

• ECM detects Air Fuel Ratio Sensor Heater cir-

cuit is open for 5 seconds.

• ECM detects Air Fuel Ratio Sensor Heater cir-

cuit is short to ground for 5 seconds.

• ECM detects Air Fuel Ratio Sensor Heater cir-

cuit is short to power for 5 seconds.

• Harness or connectors

(The air fuel ratio sensor heater circuit is 
open or shorted.)

• Air fuel ratio sensor heater

+

-

Continuity

ECM

A/F sensor

Connector

Terminal

Connector

Terminal

F82

89

F75

3

Existed