Nissan Quest E52. Instruction — part 550

EC-410

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2135 TP SENSOR

4.

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

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 THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.

2.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK THROTTLE POSITION SENSOR

Check throttle position sensor. Refer to

EC-410, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace electric throttle control actuator. Refer to

EM-28, "Exploded View"

.

Component Inspection

INFOID:0000000009651267

1.

CHECK THROTTLE POSITION SENSOR

1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Perform

EC-136, "Description"

.

4.

Turn ignition switch ON.

5.

Shift selector lever position to D.

6.

Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace electric throttle control actuator. Refer to

EM-28, "Exploded View"

.

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F29

4

F7

19

Existed

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F29

2

F7

22

Existed

3

23

ECM

Condition

Voltage

+

–

Connector

Terminal

Connector

Terminal

F7

22

(TP sensor 1 signal)

F7

19

(Sensor ground)

Accelerator pedal

Fully released

More than 0.36 V

Fully depressed

Less than 4.75 V

23

(TP sensor 2 signal)

Fully released

Less than 4.75 V

Fully depressed

More than 0.36 V

P2138 APP SENSOR

EC-411

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

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EC

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P2138 APP SENSOR

DTC Logic

INFOID:0000000009651268

DTC DETECTION LOGIC

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

EC-337, "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

>> Proceed to

EC-411, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651269

1.

CHECK APP SENSOR 1 POWER SUPPLY

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 2.

NO

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

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 or 2 circuit is open or
shorted.)
[CKP sensor (POS) circuit is shorted.]
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system pressure sensor
circuit is shorted.)

• Accelerator pedal position sensor

(APP sensor 1 or 2)

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

APP sensor

Ground

Voltage (V)

Connector

Terminal

E110

4

Ground

Approx. 5

EC-412

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P2138 APP SENSOR

2.

CHECK APP SENSOR 2 POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 3.

3.

CHECK APP SENSOR 2 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.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit.

4.

CHECK SENSOR POWER SUPPLY CIRCUIT

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK COMPONENTS

Check the following.
• Crankshaft position sensor (POS) (Refer to

EC-273, "Component Inspection"

.)

• EVAP control system pressure sensor (Refer to

EC-305, "Component Inspection"

.)

• Refrigerant pressure sensor (Refer to

EC-442, "Diagnosis Procedure"

.)

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace malfunctioning components.

6.

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.

APP sensor

Ground

Voltage (V)

Connector

Terminal

E110

5

Ground

Approx. 5

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E110

5

E16

103

Existed

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F8

96

Refrigerant pressure sensor

E300

1

54

CKP sensor (POS)

F20

1

E16

103

APP sensor

E110

5

107

EVAP control system pressure sensor

B22

3

P2138 APP SENSOR

EC-413

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

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4.

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

Is the inspection result normal?

YES

>> GO TO 7.

NO

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

7.

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 8.

NO

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

8.

CHECK APP SENSOR

Check APP sensor. Refer to

EC-413, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace accelerator pedal assembly. Refer to

ACC-3, "Exploded View"

.

Component Inspection

INFOID:0000000009651270

1.

CHECK ACCELERATOR PEDAL POSITION SENSOR

1.

Reconnect all harness connectors disconnected.

2.

Turn ignition switch ON.

3.

Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace accelerator pedal assembly. Refer to

ACC-3, "Exploded View"

.

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E110

2

E16

100

Existed

1

116

APP sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E110

3

E16

97

Existed

6

98

ECM

Condition

Voltage (V)

+

–

Connector

Terminal

Connector

Terminal

E16

97

(APP sensor 1 sig-

nal)

E16

100

(Sensor ground)

Accelerator pedal

Fully released

0.5 - 1.0

Fully depressed

4.2 - 4.8

98

(APP sensor 2 sig-

nal)

116

(Sensor ground)

Fully released

0.25 - 0.50

Fully depressed

2.0 - 2.5