Nissan Pathfinder (2010 year). Manual - part 343

PCS-33, "Removal and Installation of IPDM E/R"

OK or NG

>> Replace IPDM E/R. Refer to

>> Repair or replace harness or connectors.

2010 Pathfinder

EC-838

< COMPONENT DIAGNOSIS >

[VK56DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

Description

INFOID:0000000005257849

NOTE:

•

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

EC-835, "DTC Confirmation Procedure"

•

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

EC-844, "DTC Confirmation Procedure"

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.

On Board Diagnosis Logic

INFOID:0000000005257850

This self-diagnosis has the one trip detection logic.

FAIL-SAFE MODE

When the malfunction is detected, ECM enters fail-safe mode and the MIL illuminates.

DTC Confirmation Procedure

INFOID:0000000005257851

NOTE:

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting the next step.

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.

1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
4. If DTC is detected, go to

EC-838, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000005257852

CHECK GROUND CONNECTIONS

1. Turn ignition switch OFF.

2. Loosen and retighten ground screws on the body.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2101
2101

Electric throttle control
performance

Electric throttle control function does not
operate properly.

• Harness or connectors

(Throttle control motor circuit is open or shorted)

• Electric throttle control actuator

Engine operating condition in fail-safe mode

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

2010 Pathfinder

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-839

< COMPONENT DIAGNOSIS >

[VK56DE]

EC-577, "Ground Inspection"

OK or NG

>> GO TO 2.

>> Repair or replace ground connections.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I

1. Check voltage between ECM terminal 3 and ground under the

following conditions with CONSULT-III or tester.

OK or NG

>> GO TO 9.

>> GO TO 3.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I

1. Turn ignition switch OFF.

2. Check voltage between ECM terminal 104 and ground with

CONSULT-III or tester.

OK or NG

>> GO TO 6.

>> GO TO 4.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II

1. Disconnect ECM harness connector.

2. Disconnect IPDM E/R harness connector E122.

3. Check harness continuity between ECM terminal 104 and IPDM E/R terminal 47.

Refer to Wiring Diagram.

4. Also check harness for short to ground and short to power.
OK or NG

>> GO TO 5.

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

CHECK FUSE

1. Disconnect 20 A fuse (No. 52).

2. Check if 20 A fuse is blown.
OK or NG

BBIA0539E

Ignition switch

Voltage

OFF

Approximately 0 V

Battery voltage

(11 - 14 V)

MBIB0028E

Voltage: Battery voltage

PBIB1171E

Continuity should exist.

2010 Pathfinder

EC-840

< COMPONENT DIAGNOSIS >

[VK56DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

>> GO TO 8.

>> Replace 20 A fuse.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

1. Disconnect ECM harness connector.

2. Disconnect IPDM E/R harness connector E119.

3. Check harness continuity between ECM terminal 3 and IPDM E/R terminal 6.

Refer to Wiring Diagram.

4. Also check harness for short to ground and short to power.
OK or NG

>> GO TO 8.

>> GO TO 7.

DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E2, F32

• Harness for open or short between ECM and IPDM E/R

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

CHECK INTERMITTENT INCIDENT

PCS-33, "Removal and Installation of IPDM E/R"

OK or NG

>> Replace IPDM E/R. Refer to

>> Repair or replace harness or connectors.

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 harness continuity between the following terminals.

Refer to Wiring Diagram.

5. Also check harness for short to ground and short to power.
OK or NG

>> GO TO 10.

>> Repair or replace malfunctioning part.

10.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1. Remove the intake air duct.

Continuity should exist.

Electric throttle control

actuator terminal

ECM terminal

Continuity

Should not exist

Should exist

Should not exist

BBIA0371E

2010 Pathfinder

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-841

< COMPONENT DIAGNOSIS >

[VK56DE]

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

the housing.

OK or NG

>> GO TO 11.

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

11.

CHECK THROTTLE CONTROL MOTOR

EC-841, "Component Inspection"

OK or NG

>> GO TO 12.

>> GO TO 13.

12.

CHECK INTERMITTENT INCIDENT

OK or NG

>> GO TO 13.

>> Repair or replace harness or connectors.

13.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace the electric throttle control actuator.

2. Perform

3. Perform

INSPECTION END

Component Inspection

INFOID:0000000005257853

THROTTLE CONTROL MOTOR

1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 5 and 6.

3. If NG, replace electric throttle control actuator and go to next

step.

4. Perform

5. Perform

EC-842, "Diagnosis Procedure"

BBIA0371E

Resistance: Approximately 1 - 15

Ω

[at 25

C (77

F)]

PBIB2606E

2010 Pathfinder

EC-842

< COMPONENT DIAGNOSIS >

[VK56DE]

P2118 THROTTLE CONTROL MOTOR

P2118 THROTTLE CONTROL MOTOR

Component Description

INFOID:0000000005257854

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.

On Board Diagnosis Logic

INFOID:0000000005257855

This self-diagnosis has the one trip detection logic.

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode and the MIL illuminates.

DTC Confirmation Procedure

INFOID:0000000005257856

1. If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting the next step.

a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c.

Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON and wait at least 2 seconds.
3. Start engine and let it idle for 5 seconds.
4. Check DTC.
5. If DTC is detected, go to

Diagnosis Procedure

INFOID:0000000005257857

CHECK GROUND CONNECTIONS

1. Turn ignition switch OFF.

2. Loosen and retighten ground screws on the body.

EC-577, "Ground Inspection"

OK or NG

>> GO TO 2.

>> Repair or replace ground connections.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2118
2118

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)

Engine operating condition in fail-safe mode

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

BBIA0539E

2010 Pathfinder

P2118 THROTTLE CONTROL MOTOR

EC-843

< COMPONENT DIAGNOSIS >

[VK56DE]

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

1. Disconnect electric throttle control actuator harness connector.

2. Disconnect ECM harness connector.

3. Check harness continuity between the following terminals.

Refer to Wiring Diagram.

4. Also check harness for short to ground and short to power.
OK or NG

>> GO TO 3.

>> Repair or replace malfunctioning part.

CHECK THROTTLE CONTROL MOTOR

EC-843, "Component Inspection"

OK or NG

>> GO TO 4.

>> GO TO 5.

CHECK INTERMITTENT INCIDENT

OK or NG

>> GO TO 5.

>> Repair or replace harness or connectors.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace the electric throttle control actuator.

2. Perform

3. Perform

INSPECTION END

Component Inspection

INFOID:0000000005257858

THROTTLE CONTROL MOTOR

1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 5 and 6.

3. If NG, replace electric throttle control actuator and go to next

step.

4. Perform

5. Perform