Nissan Sentra. Instruction — part 433

EC-428

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P2118 THROTTLE CONTROL MOTOR

P2118 THROTTLE CONTROL MOTOR

DTC Logic

INFOID:0000000009758684

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 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

EC-428, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758685

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.

5. Also check harness for short to ground and to power.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

DTC No.

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P2118

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

ECM detects short in both circuits between
ECM and throttle control motor.

• Harness or connectors

(Throttle control motor circuit is shorted.)

• Electric throttle control actuator

(Throttle control motor)

+

−

Continuity

Electric throttle control actu-

ator

ECM

Connector

Terminal

Connector

Terminal

F7

5

F24

3

Not existed

1

Existed

6

3

Existed

1

Not existed

P2118 THROTTLE CONTROL MOTOR

EC-429

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

2.

CHECK THROTTLE CONTROL MOTOR

Check the throttle control motor. Refer to

EC-429, "Component Inspection (Throttle Control Motor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

NO

>> Replace electric throttle control actuator. Refer to

EM-27, "Removal and Installation"

.

Component Inspection (Throttle Control Motor)

INFOID:0000000009758686

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-27, "Removal and Installation"

.

Electric throttle control actu-

ator

Condition

Resistance

(Approx.)

+

−

Terminals

5

6

Temperature

°C (°F)

25 (77)

1 - 15

Ω

EC-430

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC Logic

INFOID:0000000009758687

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 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

EC-430, "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 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

EC-430, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758688

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1. Remove the intake air duct. Refer to

EM-25, "Exploded View"

.

DTC No.

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P2119

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

A

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

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.

P2119 ELECTRIC THROTTLE CONTROL ACTUATOR

EC-431

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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

the housing.

Is the inspection result normal?

YES

>> Replace electric throttle control actuator. Refer to

EM-

27, "Removal and Installation"

.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside, then perform throttle valve

closed position learning. Refer to

EC-139, "Work Proce-

dure"

.

JSBIA2864ZZ