Nissan Pathfinder. Manual — part 524

EC-402

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

3. Disconnect IPDM E/R harness connector.

4. Check the continuity between IPDM E/R harness connector and ECM harness connector.

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

YES

>> GO TO 3.

NO

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

3.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT

1. Check the continuity between IPDM E/R harness connector and ECM harness connector.

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

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

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

4.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

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 short to power.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning part.

5.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1. Remove the intake air duct. Refer to

EM-24, "Removal and Installation"

.

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

the housing.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside, refer to

EM-26, "Removal and

Installation"

, and then perform throttle valve closed posi-

tion learning. Refer to

EC-142, "Description"

.

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F19

57

F51

1

Existed

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F24

65

F51

34

Existed

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F50

5

F51

5

Not existed

2

Existed

6

5

Existed

2

Not existed

JSBIA2864ZZ

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-403

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

6.

CHECK THROTTLE CONTROL MOTOR

Check throttle control motor. Refer to

EC-404, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace electric throttle control actuator. Refer to

EM-26, "Removal and Installation"

.

7.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to

GI-49, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace electric throttle control actuator. Refer to

EM-26, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

Component Inspection

INFOID:0000000009178327

1.

CHECK THROTTLE CONTROL MOTOR

1. Turn ignition switch OFF.

2. Disconnect electric throttle control actuator harness connector.

3. Check 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-26, "Removal and Installation"

.

Terminals

Resistance

5 and 6

Approx. 1 - 15

Ω [at 25°C (77°F)]

EC-404

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2118 THROTTLE CONTROL MOTOR

P2118 THROTTLE CONTROL MOTOR

DTC Logic

INFOID:0000000009178328

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-

ing 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-405, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009178329

1.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Disconnect electric throttle control actuator harness connector.

2. Disconnect ECM harness connector.

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

nector.

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

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning part.

2.

CHECK THROTTLE CONTROL MOTOR

Check throttle control motor. Refer to

EC-406, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-49, "Intermittent Incident"

.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P2118

ETC MOT-B1
(Throttle actuator control mo-
tor current range/perfor-
mance)

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)

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F50

5

F51

5

Not existed

2

Existed

6

5

Existed

2

Not existed

P2118 THROTTLE CONTROL MOTOR

EC-405

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

NO

>> Replace electric throttle control actuator. Refer to

EM-26, "Removal and Installation"

.

Component Inspection

INFOID:0000000009178330

1.

CHECK THROTTLE CONTROL MOTOR

1. Turn ignition switch OFF.

2. Disconnect electric throttle control actuator harness connector.

3. Check 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-26, "Removal and Installation"

.

Terminals

Resistance

5 and 6

Approx. 1 - 15

Ω [at 25°C (77°F)]