Nissan Rogue. Manual - part 546

EC-452

< DTC/CIRCUIT DIAGNOSIS >

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P2138 APP SENSOR

P2138 APP SENSOR

DTC Description

INFOID:0000000011278166

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (APP sensor 1 or 2 circuit is open or shorted.)

• Accelerator pedal position sensor (APP sensor 1 or 2)

• Sensor power supply 2 circuit

FAIL-SAFE

• 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.

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-382, "DTC Description"

.

NO

>> GO TO 2.

2.

PRECONDITIONING

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

before conducting 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 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE

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

2. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EC-452, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000011278167

1.

CHECK DTC PRIORITY

If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-382, "DTC Description"

.

NO

>> GO TO 2.

2.

CHECK APP SENSOR 1 POWER SUPPLY

1. Turn ignition switch OFF.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2138

APP SENSOR
(Throttle/pedal position sensor/switch 

″D″ / 

″E″ voltage correlation)

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

P2138 APP SENSOR

EC-453

< DTC/CIRCUIT DIAGNOSIS >

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

3. Turn ignition switch ON.

4. Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT

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.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

4.

CHECK APP SENSOR 2 POWER SUPPLY

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK SENSOR POWER SUPPLY 2 CIRCUIT

Perform 

EC-487, "Diagnosis Procedure"

.

Is inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

6.

CHECK APP SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

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

+

−

Voltage

(Approx.)

APP sensor

Connector

Terminal

E25

4

Ground

5 V

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

E25

4

E16

122

Existed

+

−

Voltage

(Approx.)

APP sensor

Connector

Terminal

E25

5

Ground

5 V

EC-454

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P2138 APP SENSOR

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

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK APP SENSOR INPUT SIGNAL CIRCUIT

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

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

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts

8.

CHECK APP SENSOR

Check the APP sensor. Refer to 

EC-454, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace accelerator pedal assembly. Refer to 

ACC-3, "Removal and Installation"

.

9.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000011278168

1.

CHECK ACCELERATOR PEDAL POSITION SENSOR

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Turn ignition switch ON.

4. Check the voltage between ECM harness connector terminals as per the following condition.

Is the inspection result normal?

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

E25

1

E16

120

Existed

2

127

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

E25

3

E16

126

Existed

6

119

ECM

Condition

Voltage

Connector

+

−

Terminal

Sensor 1

E16

126

127

Accelerator pedal

Fully released

0.5 - 1.0 V

Fully depressed

4.2 - 4.8 V

Sensor 2

119

120

Fully released

0.25 - 0.5 V

Fully depressed

2.0 - 2.5 V

P2138 APP SENSOR

EC-455

< DTC/CIRCUIT DIAGNOSIS >

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YES

>> INSPECTION END

NO

>> Replace accelerator pedal assembly. Refer to 

ACC-3, "Removal and Installation"

.