Nissan Teana J32. Manual - part 1183

TM-256

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P1723 CVT SPEED SENSOR FUNCTION

YES

>> Repair or replace damaged parts. Refer to 

TM-264, "DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM

Check output speed sensor (secondary speed sensor) system. Refer to 

TM-222, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) SYSTEM

Check input speed sensor (primary speed sensor) system. Refer to 

TM-218, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK ENGINE SPEED SIGNAL SYSTEM

Check engine speed signal system. Refer to 

TM-226, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> Replace the TCM. Refer to 

TM-315, "Exploded View"

.

NO

>> Repair or replace damaged parts.

P1726 ELECTRIC THROTTLE CONTROL SYSTEM

TM-257

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

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P1726 ELECTRIC THROTTLE CONTROL SYSTEM

Description

INFOID:0000000003806461

The electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throt-
tle position sensor, etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM via CAN
communication.

DTC Logic

INFOID:0000000003806462

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Start engine and let it idle for 5 seconds.

3.

Select “Self Diagnostic Results” mode for “TRANSMISSION”.

Is “P1726 ELEC TH CONTROL” detected?

YES

>> Go to 

TM-257, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-35, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000003806463

1.

CHECK DTC WITH ECM

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Results” mode for “ENGINE”.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check the DTC Detected Item. Refer to 

EC-113, "CONSULT-III Function"

.

2.

CHECK DTC WITH TCM

With CONSULT-III

Select “Self Diagnostic Results” mode for “TRANSMISSION”.

Is “P1726 ELEC TH CONTROL” detected?

YES

>> Replace TCM. Refer to 

TM-315, "Exploded View"

.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> Replace TCM. Refer to 

TM-315, "Exploded View"

.

NO

>> Repair or replace damaged parts.

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P1726

ELEC TH CONTROL

The electronically controlled 
throttle for ECM is malfunction-
ing.

Harness or connectors
(Sensor circuit is open or short-
ed.)

TM-258

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P1740 LOCK-UP SELECT SOLENOID VALVE

P1740 LOCK-UP SELECT SOLENOID VALVE

Description

INFOID:0000000003806464

• The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake

pressure).

• When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON.

DTC Logic

INFOID:0000000003806465

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Start engine and maintain the following conditions for at least 5 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.

Is “P1740 LU-SLCT SOL/CIRC” detected?

YES

>> Go to 

TM-258, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-35, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000003806466

1.

CHECK LOCK-UP SELECT SOLENOID VALVE CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check resistance between TCM vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES 

>> GO TO 5.

NO

>> GO TO 2.

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P1740

LU-SLCT SOL/CIRC

• Normal voltage is not applied 

to solenoid due to cut line, 
short, etc.

• TCM detects as irregular by 

comparing target value with 
monitor value.

• Lock-up select solenoid valve
• Harness or connectors

(Solenoid circuit is open or 
shorted.)

RANGE

: “D” and “N” positions

(At each time, wait for 5 seconds.)

TCM vehicle side harness connector

Ground

Resistance (Approx.)

Connector

Terminal

F23

37

17.0 – 38.0 

Ω

P1740 LOCK-UP SELECT SOLENOID VALVE

TM-259

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

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2.

CHECK HARNESS BETWEEN TCM AND CVT UNIT (LOCK-UP SELECT SOLENOID VALVE) (PART 1)

1.

Disconnect CVT unit connector.

2.

Check continuity between TCM vehicle side harness connector terminal and CVT unit vehicle side har-
ness connector terminal.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK HARNESS BETWEEN TCM AND CVT UNIT (LOCK-UP SELECT SOLENOID VALVE) (PART 2)

Check continuity between TCM vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK LOCK-UP SELECT SOLENOID VALVE

Check lock-up select solenoid valve. Refer to 

TM-259, "Component Inspection (Lock-up Select Solenoid

Valve)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

>> Replace TCM. Refer to 

TM-315, "Exploded View"

.

NO

>> Repair or replace damaged parts.

Component Inspection (Lock-up Select Solenoid Valve)

INFOID:0000000003806467

1.

LOCK-UP SELECT SOLENOID VALVE

Check resistance between CVT unit harness connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the transaxle assembly. Refer to 

TM-332, "Exploded View"

.

TCM vehicle side harness connector

CVT unit vehicle side harness connector

Continuity

Connector

Terminal

Connector

Terminal

F23

37

F24

13

Existed

TCM vehicle side harness connector

Ground

Continuity

Connector

Terminal

F23

37

Not existed

CVT unit harness connector

Ground

Resistance (Approx.)

Connector

Terminal

F24

13

17.0 – 38.0 

Ω