Nissan Murano. Manual - part 1389

 

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Nissan Murano. Manual - part 1389

 

 

TM-98

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P1740 SELECT SOLENOID

P1740 SELECT SOLENOID

Description

INFOID:0000000009719511

• 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:0000000009719512

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT

1.

Turn ignition switch ON.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

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

With GST

Follow the procedure “With CONSULT”.

Is “P1740” detected?

YES

>> Go to 

TM-98, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000009719513

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.

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.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P1740

Lock-up Select Solenoid 
Valve Circuit

• Normal voltage is not applied to solenoid 

due to cut line, short, etc.

• TCM detects as irregular by comparing 

target value with monitor value.

• Harness or connectors

(Solenoid circuit is open or shorted.)

• Lock-up select solenoid valve

RANGE

: “D”, “N” and “L” position

(At each time, wait for 5 seconds.)

TCM vehicle side harness connector

Ground

Resistance (Approx.)

Connector

Terminal

F23

37

6.0 – 19.0 

P1740 SELECT SOLENOID

TM-99

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

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-99, "Component Inspection (Lock-up Select Solenoid

Valve)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace transaxle assembly. Refer to 

TM-180, "Exploded View"

.

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-165, "Exploded View"

.

NO

>> Repair or replace damaged parts.

Component Inspection (Lock-up Select Solenoid Valve)

INFOID:0000000009719514

1.

CHECK LOCK-UP SELECT SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace transaxle assembly. Refer to 

TM-180, "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 connector

Ground

Resistance (Approx.)

Connector

Terminal

F24

13

6.0 – 19.0 

TM-100

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P1745 LINE PRESSURE CONTROL

P1745 LINE PRESSURE CONTROL

Description

INFOID:0000000009719515

The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to a signal sent from the TCM.

DTC Logic

INFOID:0000000009719516

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT

1.

Turn ignition switch ON

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Make sure that output voltage of CVT fluid temperature sensor is within the range below.

Is “P1745” detected?

YES

>> Go to 

TM-100, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000009719517

1.

CHECK DTC

With CONSULT

1.

Start engine.

2.

Perform “Self Diagnostic Results” in “TRANSMISSION”.

Is “P1745” detected?

YES

>> Replace TCM. Refer to 

TM-165, "Exploded View"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P1745

Line Pressure Control Circuit

TCM detects the unexpected line pressure.

TCM

ATF TEMP SEN

: 1.0 – 2.0 V

If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool 
down the fluid)

P1777 STEP MOTOR

TM-101

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P1777 STEP MOTOR

Description

INFOID:0000000009719518

The step motor changes the step by turning 4 coils ON/OFF according to the signal from TCM. As a result, the
flow of line pressure to primary pulley is changed and pulley ratio is controlled.

DTC Logic

INFOID:0000000009719519

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.

1.

CHECK DTC DETECTION

With CONSULT

1.

Start engine.

2.

Drive vehicle for at least 5 consecutive seconds.

3.

Perform “Self Diagnostic Results” in “TRANSMISSION”.

With GST

Follow the procedure “With CONSULT”.
Is “P1777” detected?

YES

>> Go to 

TM-101, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000009719520

1.

CHECK STEP MOTOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check resistance between TCM vehicle side harness connector terminals.

4.

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

Is the inspection result normal?

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P1777

Step Motor Circuit

Each coil of the step motor is not energized 
properly due to an open or a short.

• Harness or connectors

(Step motor circuit is open or shorted.)

• Step  motor

TCM vehicle side harness connector

Resistance (Approx.)

Connector

Terminal

F23

27

28

30.0 

29

30

TCM vehicle side harness connector

Ground

Resistance (Approx.)

Connector

Terminal

F23

27

15.0 

28

29

30

 

 

 

 

 

 

 

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