Nissan Altima L32. Instruction — part 580

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-1441

< COMPONENT DIAGNOSIS >

[VQ35DE]

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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 8.

NO

>> Repair or replace malfunctioning part.

8.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1. Remove the intake air duct.

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

and the housing.

-

Electric throttle control actuator (2)

-

: Vehicle front

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

9.

CHECK THROTTLE CONTROL MOTOR

Refer to

EC-1441, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 11.

10.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace harness or connectors.

11.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace electric throttle control actuator.

2. Refer to

EC-1442, "Special Repair Requirement"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004362310

1.

CHECK THROTTLE CONTROL MOTOR

1. Turn ignition switch OFF.

2. Disconnect electric throttle control actuator harness connector.

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F57

5

F14

5

Not existed

6

Existed

6

5

Existed

6

Not existed

ALBIA0124ZZ

EC-1442

< COMPONENT DIAGNOSIS >

[VQ35DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

3. Check resistance between electric throttle control actuator termi-

nals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace electric throttle control actuator.

2. Go to

EC-1442, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000004362311

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to

EC-1053, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

>> GO TO 2.

2.

PERFORM IDLE AIR VOLUME LEARNING

Refer to

EC-1053, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

>> END

Terminals

Resistance

5 and 6

Approx. 1 - 15

Ω [at 25°C (77°F)]

PBIB2909E

P2118 THROTTLE CONTROL MOTOR

EC-1443

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[VQ35DE]

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P2118 THROTTLE CONTROL MOTOR

Description

INFOID:0000000004362312

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. The throttle position

sensor it provides feedback to the ECM, when opens/closes the throttle valve in response to driving conditions

via the throttle control motor.

DTC Logic

INFOID:0000000004362313

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

>> Go to

EC-1443, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004362314

1.

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E9. Refer to Ground Inspection in

GI-45, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

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.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2118

Throttle control motor
circuit short

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)

EC-1444

< COMPONENT DIAGNOSIS >

[VQ35DE]

P2118 THROTTLE CONTROL MOTOR

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

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning part.

3.

CHECK THROTTLE CONTROL MOTOR

Refer to

EC-1444, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connectors.

5.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace electric throttle control actuator.

2. Go to

EC-1445, "Special Repair Requirement"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004362315

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 termi-

nals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace electric throttle control actuator.

2. Go to

EC-1442, "Special Repair Requirement"

.

>> INSPECTION END

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F57

5

F14

5

Not existed

6

Existed

6

5

Existed

6

Not existed

Terminals

Resistance

5 and 6

Approx. 1 - 15

Ω [at 25°C (77°F)]

PBIB2909E