Nissan Altima L32. Instruction — part 584

P2135 TP SENSOR

EC-1457

< COMPONENT DIAGNOSIS >

[VQ35DE]

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7.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004362334

1.

CHECK THROTTLE POSITION SENSOR

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Perform

EC-1457, "Special Repair Requirement"

.

4. Turn ignition switch ON.

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

6. Check the voltage between ECM harness connector terminals

under the following conditions.

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-1457, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000004362335

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

ECM

Condition

Voltage

Connector

+

–

Terminal

Terminal

F13

37

(TP sensor

1 signal)

36

(Sensor
ground)

Accelerator

pedal

Fully re-

leased

More than 0.36 V

Fully de-

pressed

Less than 4.75 V

38

(TP sensor

2 signal)

Fully re-

leased

Less than 4.75 V

Fully de-

pressed

More than 0.36 V

JMBIA1953ZZ

EC-1458

< COMPONENT DIAGNOSIS >

[VQ35DE]

P2138 APP SENSOR

P2138 APP SENSOR

Description

INFOID:0000000004362336

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 potentiometer which transform the accelerator pedal

position into output voltage, and emit the voltage signal 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 engine operations such as fuel cut.

DTC Logic

INFOID:0000000004362337

DTC DETECTION LOGIC

NOTE:

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

EC-1379, "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 8 V 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-1459, "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

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

• APP sensor 1 or 2
• CKP sensor (POS)
• EVAP control system pressure sensor
• Refrigerant pressure sensor

P2138 APP SENSOR

EC-1459

< COMPONENT DIAGNOSIS >

[VQ35DE]

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Diagnosis Procedure

INFOID:0000000004362338

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, short to ground or short 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.

5.

CHECK SENSOR POWER SUPPLY CIRCUIT

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

APP sensor

Ground

Voltage (V)

Connector

Terminal

E40

5

Ground

Approx. 5

PBIA9607J

APP sensor

Ground

Voltage (V)

Connector

Terminal

E40

6

Ground

Approx. 5

JMBIA1609ZZ

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E40

6

E10

87

Existed

EC-1460

< COMPONENT DIAGNOSIS >

[VQ35DE]

P2138 APP SENSOR

Is the inspection result normal?

YES

>> GO TO 6.

NO

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

6.

CHECK COMPONENTS

Check the following.

• Crankshaft position sensor (POS) (Refer to

EC-1295, "Component Inspection"

.)

• EVAP control system pressure sensor (Refer to

EC-1334, "Component Inspection"

.)

• Refrigerant pressure sensor (Refer to

EC-1503, "Diagnosis Procedure"

.)

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace malfunctioning components.

7.

CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

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

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

YES

>> GO TO 8.

NO

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

8.

CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between APP sensor 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 9.

NO

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

9.

CHECK APP SENSOR

Refer to

EC-1461, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

REPLACE ACCELERATOR PEDAL ASSEMBLY

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F13

72

Refrigerant pressure sensor

E219

1

76

CKP sensor (POS)

F30

1

E10

87

APP sensor

E40

6

91

EVAP control system pressure sensor

B41

3

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E40

4

E10

84

Existed

2

100

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E40

3

E10

81

Existed

1

82