Nissan Qashqai J11. Manual - part 218

 

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Nissan Qashqai J11. Manual - part 218

 

 

ECH-170

< DTC/CIRCUIT DIAGNOSIS >

[HRA2DDT]

P0120 TP SENSOR

P0120 TP SENSOR

DTC Logic

INFOID:0000000010379064

DTC DETECTION LOGIC

NOTE:
If DTC P0120 is displayed with DTC P0641 or P0651, first perform the trouble diagnosis for DTC P0641 or
P0651. Refer to 

ECH-71, "DTC Index"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

Turn ignition switch OFF and wait at least 12 minutes.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 12 minutes.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECH-170, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010379065

1.

CHECK ECM HARNESS CONNECTOR CONNECTION

1.

Turn ignition switch OFF.

2.

Check ECM connector connection F17.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ECM connector connection.

2.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNECTION

Check electric throttle control actuator harness connector connection F46.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace electric throttle control actuator harness connector connection.

3.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT

1.

Disconnect electric throttle control actuator harness connector.

2.

Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.

3.

Also check harness for short to ground and short to power. 

Is the inspection result normal?

YES

>> GO TO 4.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0120

THROTTLE POSI SEN 
[P0120]
[Throttle position sensor 
(P0120)]

Implausible TP sensor position for 0.19 sec-
ond or more.

• Harness or connectors

(Throttle position sensor circuit is open or 
shorted.)

• Throttle position sensor

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F46

5

F17

65

Existed

P0120 TP SENSOR

ECH-171

< DTC/CIRCUIT DIAGNOSIS >

[HRA2DDT]

C

D

E

F

G

H

I

J

K

L

M

A

ECH

N

P

O

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR SIGNAL CIRCUIT

1.

Disconnect electric throttle control actuator harness connector.

2.

Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.

3.

Also check harness for short to ground and short to power. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

5.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR GROUND CIRCUIT

1.

Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.

2.

Also check harness for short to ground and short to power. 

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

6.

CHECK INTERMITTENT INCIDENT 

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace electric throttle control actuator.

NO

>> Repair or replace error-detected parts.

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F46

4

F17

82

Existed

6

87

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F46

3

F17

90

Existed

ECH-172

< DTC/CIRCUIT DIAGNOSIS >

[HRA2DDT]

P012A TC BOOST SENSOR

P012A TC BOOST SENSOR

DTC Logic

INFOID:0000000010500164

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING 

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 12 minutes.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 12 minutes.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE 

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

ECH-172, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010500165

1.

CHECK ECM HARNESS CONNECTOR CONNECTION

1.

Turn ignition switch OFF.

2.

Check ECM connector connection F18.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ECM connector connection.

2.

CHECK TURBOCHARGER BOOST SENSOR HARNESS CONNECTOR CONNECTION

Check turbocharger boost sensor harness connector connection F76.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace turbocharger boost sensor harness connector connection.

3.

CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect turbocharger boost sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between turbocharger boost sensor harness connector and ground.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P012A

TC/SC INLET PRESSURE SEN-
SOR
(Turbocharger/supercharger inlet 
pressure sensor circuit)

• Turbocharger boost sensor volt-

age signal above maximum 
threshold for 1 second or more.

• Turbocharger boost sensor volt-

age signal below minimum 
threshold for 1 second or more.

• Harness or connectors

(Turbocharger boost sensor circuit is 
open or shorted.)

• Turbocharger boost sensor

P012A TC BOOST SENSOR

ECH-173

< DTC/CIRCUIT DIAGNOSIS >

[HRA2DDT]

C

D

E

F

G

H

I

J

K

L

M

A

ECH

N

P

O

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

5.

CHECK TURBOCHARGER BOOST SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK TURBOCHARGER BOOST SENSOR INPUT SIGNAL CIRCUIT

1.

Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK INTERMITTENT INCIDENT 

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

+

−

Voltage

(Approx.)

Turbocharger boost sensor 

Connector

Terminal

F76

3

Ground

5 V

+

−

Continuity

Turbocharger boost sensor 

ECM

Connector

Terminal

Connector

Terminal

F76

3

F18

137

Existed

+

−

Continuity

Turbocharger boost sensor

ECM

Connector

Terminal

Connector

Terminal

F76

1

F18

106

Existed

+

−

Continuity

Turbocharger boost sensor

ECM

Connector

Terminal

Connector

Terminal

F76

4

F18

97

Existed

 

 

 

 

 

 

 

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