Nissan Murano. Manual - part 575

EC-410

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

Description

INFOID:0000000009720158

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. The throttle position
sensor provides feedback to the ECM, when opens/closes the throttle valve in response to driving conditions
via the throttle control motor.

DTC Logic

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DTC DETECTION LOGIC

NOTE:
If DTC P2101 is displayed with DTC P2100, first perform the trouble diagnosis for DTC P2100. Refer to

EC-408, "DTC Logic"

.

If DTC P2101 is displayed with DTC 2119, first perform the trouble diagnosis for DTC P2119. Refer to

EC-417, "DTC 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.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V 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-410, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720160

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E38. Refer to Ground Inspection in 

GI-47, "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.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2101

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

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-411

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 3.

3.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

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 4.

NO

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

4.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

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

>> GO TO 5.

NO

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

5.

CHECK FUSE

1.

Disconnect 15 A fuse (No. 51) from IPDM E/R.

2.

Check if 15 A fuse is blown.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace 15 A fuse.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-37, "Exploded View"

.

NO

>> Repair or replace harness or connectors.

7.

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.

ECM

Condition

Voltage

+

–

Connector

Terminal

Condition

Terminal

F7

2

E16

112

Ignition switch OFF

Approx. 0 V

Ignition switch ON

Battery voltage

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

70

F7

15

Existed

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

54

F7

2

Existed

EC-412

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

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. Refer to 

EM-31, "Exploded View"

.

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, refer to 

EM-33, "Exploded View"

,

and then perform throttle valve closed position learning.
Refer to 

EC-19, "THROTTLE VALVE CLOSED POSI-

TION LEARNING : Description"

.

9.

CHECK THROTTLE CONTROL MOTOR

Refer to 

EC-412, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 11.

10.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "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. Refer to 

EM-33, "Exploded View"

.

2.

Refer to 

EC-413, "Special Repair Requirement"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009720161

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?

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F29

5

F7

5

Not existed

6

Existed

6

5

Existed

6

Not existed

JMBIA1132ZZ

Terminals

Resistance

5 and 6

Approx. 1 - 15 

Ω

 [at 25

°

C (77

°

F)]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-413

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

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EC

N

P

O

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace electric throttle control actuator. Refer to 

EM-33, "Exploded View"

.

2.

Go to 

EC-413, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000009720162

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to 

EC-19, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

>> GO TO 2.

2.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-20, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

>> END