Nissan Pathfinder (2006 year). Manual - part 217

 

  Index      Manuals     Nissan Pathfinder (2006 year) - Service and Repair Manual

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

Content      ..     215      216      217      218     ..

 

 

Nissan Pathfinder (2006 year). Manual - part 217

 

 

DTC P2135 TP SENSOR

EC-595

C

D

E

F

G

H

I

J

K

L

M

A

EC

2006 Pathfinder

DTC P2135 TP SENSOR

PFP:16119

Component Description

UBS00KHF

Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.

CONSULT-II Reference Value in Data Monitor Mode

UBS00KHG

Specification data are reference values.

*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.

On Board Diagnosis Logic

UBS00KHH

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 lights up.

PBIB0145E

MONITOR ITEM

CONDITION

SPECIFICATION

THRTL SEN 1
THRTL SEN 2*

Ignition switch: ON
(Engine stopped)

Shift lever: D

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2135
2135

Throttle position sensor 
circuit range/perfor-
mance 

Rationally incorrect voltage is sent to ECM 
compared with the signals from TP sensor 1 
and TP sensor 2.

Harness or connector
(The TP sensor 1 and 2 circuit is open or 
shorted.)
(The APP sensor 2 circuit is shorted).

Electric throttle control actuator
(TP sensor 1 and 2)

Accelerator pedal position sensor
(APP sensor 2)

Engine operation condition in fail-safe mode

The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor. 

EC-596

DTC P2135 TP SENSOR

2006 Pathfinder

DTC Confirmation Procedure

UBS00KHI

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and let it idle for 1 second.

4.

If DTC is detected, go to 

EC-598, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

SEF058Y

DTC P2135 TP SENSOR

EC-597

C

D

E

F

G

H

I

J

K

L

M

A

EC

2006 Pathfinder

Wiring Diagram

UBS00KHJ

BBWA1746E

EC-598

DTC P2135 TP SENSOR

2006 Pathfinder

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

UBS00KHK

1. 

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten  three  ground screws on the body.
Refer to 

EC-151, "Ground Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

47

L

Sensor power supply 
(Throttle position sensor)

[Ignition switch: ON]

Approximately 5V

50

W

Throttle position sensor 1

[Ignition switch: ON]

Engine: Stopped

Shift lever: D

Accelerator pedal: Fully released

More than 0.36V

[Ignition switch: ON]

Engine: Stopped

Shift lever: D

Accelerator pedal: Fully depressed

Less than 4.75V

66

B

Sensor ground
(Throttle position sensor)

[Engine is running]

Warm-up condition

Idle speed

Approximately 0V

69

R

Throttle position sensor 2

[Ignition switch: ON]

Engine: Stopped

Shift lever: D

Accelerator pedal: Fully released

Less than 4.75V

[Ignition switch: ON]

Engine: Stopped

Shift lever: D

Accelerator pedal: Fully depressed

More than 0.36V

91

G

Sensor power supply
(APP sensor 2)

[Ignition switch: ON]

Approximately 5V

BBIA0539E

DTC P2135 TP SENSOR

EC-599

C

D

E

F

G

H

I

J

K

L

M

A

EC

2006 Pathfinder

2. 

CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-1

1.

Disconnect electric throttle control actuator harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between electric throttle control actuator terminal
2 and ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 3.

3. 

CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47.
Refer to Wiring Diagram.

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit.

4. 

CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-III

Check harness for short to power and short to ground, between the following terminals.

OK or NG

OK

>> GO TO 5.

NG

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

5. 

CHECK APP SENSOR

Refer to 

EC-594, "Component Inspection"

 .

OK or NG

OK

>> GO TO 11.

NG

>> GO TO 6.

BBIA0543E

Voltage: Approximately 5V

PBIB2604E

Continuity should exist.

ECM terminal

Sensor terminal

Reference Wiring Diagram

47

Electric throttle control actuator terminal 2

EC-597

91

APP sensor terminal 1

EC-590

EC-600

DTC P2135 TP SENSOR

2006 Pathfinder

6. 

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly.

2.

Perfor

EC-77, "Accelerator Pedal Released Position Learning"

 .

3.

Perfor

EC-77, "Throttle Valve Closed Position Learning"

 .

4.

Perfor

EC-77, "Idle Air Volume Learning"

 .

>> INSPECTION END

7. 

CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66.
Refer to Wiring Diagram.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 8.

NG

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

8. 

CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 1, ECM
terminal 69 and electric throttle control actuator terminal 3.
Refer to Wiring Diagram.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 9.

NG

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

9. 

CHECK THROTTLE POSITION SENSOR

Refer to 

EC-601, "Component Inspection"

 .

OK or NG

OK

>> GO TO 11.

NG

>> GO TO 10.

10. 

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace the electric throttle control actuator.

2.

Perfor

EC-77, "Throttle Valve Closed Position Learning"

 .

3.

Perfor

EC-77, "Idle Air Volume Learning"

 .

>> INSPECTION END

11. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-144, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Continuity should exist.

Continuity should exist.

DTC P2135 TP SENSOR

EC-601

C

D

E

F

G

H

I

J

K

L

M

A

EC

2006 Pathfinder

Component Inspection

UBS00KHL

THROTTLE POSITION SENSOR

1.

Reconnect all harness connectors disconnected.

2.

Perfor

EC-77, "Throttle Valve Closed Position Learning"

 .

3.

Turn ignition switch ON.

4.

Set selector lever to D. 

5.

Check voltage between ECM terminals 50 (TP sensor 1 signal),
69 (TP sensor 2 signal) and ground under the following condi-
tions.

6.

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

7.

Perfor

EC-77, "Throttle Valve Closed Position Learning"

 .

8.

Perfor

EC-77, "Idle Air Volume Learning"

 .

Removal and Installation

UBS00KHM

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to 

EM-17, "INTAKE MANIFOLD COLLECTOR"

 .

Terminal

Accelerator pedal

Voltage

50
(Throttle position sensor 1)

Fully released

More than 0.36V

Fully depressed

Less than 4.75V

69
 (Throttle position sensor 2)

Fully released

Less than 4.75V

Fully depressed

More than 0.36V

PBIB1608E

EC-602

DTC P2138 APP SENSOR

2006 Pathfinder

DTC P2138 APP SENSOR

PFP:18002

Component Description

UBS00KHN

The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals to the ECM. The
ECM judges the current opening angle of the accelerator pedal from
these signals and controls the throttle control motor based on these
signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine oper-
ation such as fuel cut.

CONSULT-II Reference Value in Data Monitor Mode

UBS00KHO

Specification data are reference values.

*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.

On Board Diagnosis Logic

UBS00KHP

This self-diagnosis has the one trip detection logic.

NOTE:
If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to

EC-479, "DTC P0643 SENSOR POWER SUPPLY"

 .

FAIL-SAFE MODE

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

PBIB1741E

MONITOR ITEM

CONDITION

SPECIFICATION

ACCEL SEN 1

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.65 - 0.87V

Accelerator pedal: Fully depressed

More than 4.3V

ACCEL SEN 2*

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.56 - 0.96V

Accelerator pedal: Fully depressed

More than 4.0V

CLSD THL POS

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

ON

Accelerator pedal: Slightly depressed

OFF

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2138
2138

Accelerator pedal posi-
tion sensor circuit 
range/performance 

Rationally incorrect voltage is sent to ECM 
compared with the signals from APP sensor 1 
and APP sensor 2.

Harness or connector
(The APP sensor 1 and 2 circuit is open 
or shorted.)
(The TP sensor circuit is shorted.)

Accelerator pedal position sensor
(APP sensor 1 and 2)

Electric throttle control actuator
(TP sensor 1 and 2)

Engine operating condition in fail-safe mode

The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor. 

 

 

 

 

 

 

 

Content      ..     215      216      217      218     ..