Nissan X-Trail 32. Manual - part 810

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

EC-369

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC Description

INFOID:0000000010775264

DTC DETECTION LOGIC

POSSIBLE CAUSE

Electric throttle control actuator

FAIL-SAFE

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 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B

1.

Turn ignition switch ON and wait at least 1 second.

2.

Set selector lever to D position and wait at least 3 seconds.

3.

Set selector lever to P position.

4.

Turn ignition switch OFF and wait at least 10 seconds.

5.

Turn ignition switch ON and wait at least 1 second.

6.

Set selector lever to D position and wait at least 3 seconds.

7.

Set selector lever to P position.

8.

Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

9.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-370, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2119

ETC ACTR-B1
(Throttle actuator control throttle 
body range/performance)

A

Electric throttle control actuator does not function properly due to the return 
spring malfunction.

B

Throttle valve opening angle in fail-safe mode is not in specified range.

C

ECM detects the throttle valve is stuck open.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Traveling con-
trol mode

Accelerator an-
gle variation 
control

ECM controls the accelerator pedal depression speed to make it slower than actual speed. This 
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.

Engine output 
control

ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle 
speed to encourage the driver to repair malfunction.

Others

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.
NOTE:
For pattern A and B refer to A and B of P2119 DTC detection logic.
For C of P2119 DTC detection logic ECM behaves as above.

EC-370

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Turn ignition switch ON and wait at least 1 second.

2.

Set selector lever to D position and wait at least 3 seconds.

3.

Set selector lever to P position.

4.

Start engine and let it idle for 3 seconds.

5.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-370, "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:0000000010775265

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct. Refer to 

EM-31, "Removal and Installation"

.

3.

Check if foreign matter is caught between the throttle valve and the housing.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Remove the foreign matter and clean the electric throttle control actuator inside, then perform

throttle valve closed position learning. Refer to 

EC-145, "Work Procedure"

.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Refer to 

EM-33, "Removal and Installation"

.

>> INSPECTION END

P2122, P2123 APP SENSOR

EC-371

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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P2122, P2123 APP SENSOR

DTC Description

INFOID:0000000010775266

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (APP sensor 1 circuit is open or shorted.)
• Accelerator pedal position sensor (APP sensor 1)

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-321, "DTC Description"

.

NO

>> GO TO 2.

2.

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 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-372, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2122

APP SEN 1/CIRC
(Throttle/pedal position sensor/switch “D” 
circuit low)

An excessively low voltage from the APP sensor 1 is sent to ECM.

P2123

APP SEN 1/CIRC
(Throttle/pedal position sensor/switch “D” 
circuit high)

An excessively high voltage from the APP sensor 1 is sent to ECM.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

The ECM controls the electric throttle control actuator in regulating the throttle opening in order 
for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. 
Therefore, the acceleration will be poor. 
NOTE:
If accelerator pedal position sensor 1 and 2 malfunction at the same time conducts following con-
trol.
• ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 

opening (approx. 5 degrees) by the return spring.

EC-372

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P2122, P2123 APP SENSOR

Diagnosis Procedure

INFOID:0000000010775267

1.

CHECK DTC PRIORITY

If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-321, "DTC Description"

.

NO

>> GO TO 2.

2.

CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT-1

1.

Turn ignition switch OFF.

2.

Disconnect accelerator pedal position (APP) sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT-2

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between APP sensor harness connector and ECM harness connector.

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace malfunctioning part.

4.

CHECK APP SENSOR 1 GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between APP sensor harness connector and ECM harness connector.

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning part.

+

−

Voltage

(Approx.)

APP sensor

Connector

Terminal

CVT models

E110

4

Ground

5  V

M/T models

E167

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

CVT models

E110

4

E16

122

Existed

M/T models

E167

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

CVT models

E110

2

E16

127

Existed

M/T models

E167