Nissan Altima L32. Instruction — part 453

P2135 TP SENSOR

EC-933

< COMPONENT DIAGNOSIS >

[QR25DE EXCEPT FOR CALIFORNIA]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

NO

>> GO TO 7.

7.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace electric throttle control actuator.

2.

EC-933, "Special Repair Requirement"

>> INSPECTION END

8.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004349922

1.

CHECK THROTTLE POSITION SENSOR

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Perform

EC-933, "Special Repair Requirement"

.

4. Turn ignition switch ON.

5. Set shift lever to D (CVT) or 1st (M/T) position.

6. Check the voltage between ECM harness connector and

ground.

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-933, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000004349923

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to

EC-565, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

>> GO TO 2.

2.

PERFORM IDLE AIR VOLUME LEARNING

Refer to

EC-566, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

ECM

Grou

nd

Condition

Voltage

Con-

nector

Terminal

F13

37

(TP sensor

1 signal)

Grou

nd

Accelerator
pedal

Fully released

More than

0.36V

Fully depressed

Less than

4.75V

38

(TP sensor

2 signal)

Fully released

Less than

4.75V

Fully depressed

More than

0.36V

PBIB3482E

EC-934

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P2135 TP SENSOR

>> END

P2138 APP SENSOR

EC-935

< COMPONENT DIAGNOSIS >

[QR25DE EXCEPT FOR CALIFORNIA]

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P2138 APP SENSOR

Description

INFOID:0000000004349924

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.

DTC Logic

INFOID:0000000004349925

DTC DETECTION LOGIC

NOTE:

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

EC-867, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

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 8V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 1 second.

2. Check DTC.
Is DTC detected?

YES

>> Go to

EC-936, "Diagnosis Procedure"

.

NO

>> INSPECTION END

PBIB1741E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2138

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

(APP sensor 1 and 2 circuit is open or
shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system sensor circuit is
shorted.)

• Accelerator pedal position sensor

(APP sensor 1 and 2)

• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor

EC-936

< COMPONENT DIAGNOSIS >

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P2138 APP SENSOR

Diagnosis Procedure

INFOID:0000000004349926

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 APP SENSOR 1 POWER SUPPLY CIRCUIT

1. Disconnect accelerator pedal position (APP) sensor harness connector.

2. Turn ignition switch ON.

3. Check the voltage between APP sensor harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair open circuit or short to ground or shot to power in

harness or connectors.

3.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I

1. Turn ignition switch ON.

2. Check the voltage between APP sensor harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 4.

4.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between APP sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III

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

APP sensor

Ground

Voltage

Connector

Terminal

E40

5

Ground

Approx. 5V

PBIA9607J

APP sensor

Ground

Voltage

Connector

Terminal

E40

6

Ground

Approx. 5V

JMBIA1609ZZ

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E40

6

E10

87

Existed