Nissan Qashqai J11. Manual — part 344

P2118 THROTTLE CONTROL MOTOR

ECM-353

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

P2118 THROTTLE CONTROL MOTOR

DTC Description

INFOID:0000000010703042

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Throttle control motor circuit is shorted.)
• Electric throttle control actuator (Throttle control motor)

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

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

>> Proceed to

ECM-353, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010703043

1.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect electric throttle control actuator harness connector.

3.

Disconnect ECM harness connector.

4.

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

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2118

ETC MOT-B1
(Throttle actuator control motor current
range/performance)

ECM detects short in throttle control motor signal circuit.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed
opening (approx. 5 degrees) by the return spring.

ECM-354

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P2118 THROTTLE CONTROL MOTOR

5.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning part.

2.

CHECK THROTTLE CONTROL MOTOR

Check the throttle control motor. Refer to

ECM-354, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace electric throttle control actuator. Refer to

EM-149, "Removal and Installation"

.

Component Inspection

INFOID:0000000010703044

1.

CHECK THROTTLE CONTROL MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect electric throttle control actuator harness connector.

3.

Check the resistance between electric throttle control actuator terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace electric throttle control actuator. Refer to

EM-149, "Removal and Installation"

.

+

−

Continuity

Electric throttle control actu-

ator

ECM

Connector

Terminal

Connector

Terminal

F45

5

F16

69

Not existed

73

Existed

6

69

Existed

73

Not existed

Electric throttle control actuator

Resistance

(Approx.)

+

−

Terminal

5

6

1 - 15

Ω

[at 25

°

C (77

°

F)]

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

ECM-355

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC Description

INFOID:0000000010703045

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 (CVT) or 1st (M/T) position and wait at least 3 seconds.

3.

Set selector lever to P (CVT) or 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 selector lever to D (CVT) or 1st (M/T) position and wait at least 3 seconds.

7.

Set selector lever to P (CVT) or 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

>> Proceed to

ECM-356, "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.

ECM-356

< 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 (CVT) or 1st (M/T) position and wait at least 3 seconds.

3.

Set selector lever to P (CVT) or Neutral (M/T) position.

4.

Start engine and let it idle for 3 seconds.

5.

Check DTC.

Is DTC detected?

YES

>> Proceed to

ECM-356, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010703046

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct. Refer to

EM-147, "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

ECM-128, "Work Procedure"

.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Refer to

EM-149, "Removal and Installation"

.

>> INSPECTION END