Nissan Tiida C11. Manual - part 470

EC-530

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

P1111 IVT CONTROL SOLENOID VALVE

2.

Provide 12V DC between intake valve timing control solenoid
valve terminals 1 and 2, and then interrupt it. Make sure that the
plunger moves as shown in the figure.

CAUTION:

Do not apply 12V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control
solenoid valve is removed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace intake valve timing control solenoid valve.

JMBIA0350ZZ

P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

EC-531

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

Description

INFOID:0000000001693324

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throt-
tle valve and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the throttle
valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening
angle properly in response to driving condition.

DTC Logic

INFOID:0000000001693325

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 10 seconds before conducting the next test.

>> 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 shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.

3.

Set shift lever to P or N (A/T), Neutral (M/T) 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 shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.

7.

Set shift lever to P or N (A/T), Neutral (M/T) position.

8.

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

9.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-531, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C

1.

Turn ignition switch ON and wait at least 1 second.

2.

Set shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.

3.

Set shift lever to P or N (A/T), Neutral (M/T) position.

4.

Start engine and let it idle for 3 seconds.

5.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-531, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001693326

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1121

Electric throttle control 
actuator

A)

Electric throttle control actuator does not func-
tion properly due to the return spring malfunc-
tion.

• Electric throttle control actuator

B)

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

C)

ECM detect the throttle valve is stuck open.

EC-532

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

3.

Check if foreign matter is caught between the throttle valve (1)
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.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace electric throttle control actuator.

2.

Go to 

EC-532, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000001693327

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to 

EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

.

>> GO TO 2.

2.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-390, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

.

>> END

2.

Electric throttle control actuator

JMBIA0447ZZ

P1122 ELECTRIC THROTTLE CONTROL FUNCTION

EC-533

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1122 ELECTRIC THROTTLE CONTROL FUNCTION

Description

INFOID:0000000001693328

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.

DTC Logic

INFOID:0000000001693329

DTC DETECTION LOGIC

NOTE:
If DTC P1122 is displayed with DTC P1121 or P1126, first perform the trouble diagnosis for DTC P1121
or P1126. Refer to 

EC-537, "DTC Logic"

 or 

EC-531, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V when engine
is running.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 2 seconds.

2.

Start engine and let it idle for 5 seconds.

3.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-533, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001693330

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E15. Refer to Ground Inspection in 

GI-58, "Circuit Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I

1.

Check the voltage between ECM harness connector terminals as follows.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1122

Electric throttle control 
performance

Electric throttle control function does not oper-
ate properly.

• Harness or connectors

(Throttle control motor circuit is open or 
shorted)

• Electric throttle control actuator