Nissan Qashqai J11. Manual - part 742

P0744 TORQUE CONVERTER

TM-543

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P0744 TORQUE CONVERTER

DTC Logic

INFOID:0000000010245617

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Be careful of the driving speed.

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PREPARATION BEFORE OPERATION

With CONSULT

1.

Start the engine.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Select “FLUID TEMP”.

4.

Confirm that the CVT fluid temperature is in the following range. 

With GST

1.

Start the engine.

2.

Set the CVT fluid to 20

°

C (68

°

F) or more. 

NOTE:
When the ambient temperature is 20

°

C (68

°

F), the CVT fluid usually increases to 50 to 80

°

C (122 to

176

°

F) with driving in an urban area for approximately 10 minutes. 

Is the CVT fluid 20

°

C (68

°

F) or more? 

YES

>> GO TO 3.

NO

>> 1.

Warm the transaxle. 

2.

GO TO 3.

3.

CHECK DTC DETECTION

1.

Drive the vehicle.

2.

Maintain the following conditions for 30 seconds or more.

3.

Stop the vehicle.

4.

Check the first trip DTC.

Is “P0744” detected?

YES

>> Go to 

TM-544, "Diagnosis Procedure"

.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

P0744

TORQUE CONVERTER
(Torque converter clutch cir-
cuit intermittent)

When all of the following conditions are satis-
fied and this state is maintained for 30 sec-
onds:
• TCM power supply voltage: More than 11 V
• P0717 is not detected.
• CAN communication is normal
• Torque converter slip speed: (40+vihicle 

speed/2) rpm

• LU pressure: More than 0.2 MPa

• Torque converter clutch solenoid valve
• Control valve assembly
• Torque converter

FLUID TEMP

: 20

°

C (68

°

F) or more

Selector lever

: “D” position

Accelerator pedal position

: 0.5/8 or more

Vehicle speed

: 40 km/h (25 MPH) or more

TM-544

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

P0744 TORQUE CONVERTER

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010245618

1.

CHECK INTERMITTENT INCIDNT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace transaxle assembly. Refer to 

TM-653, "Removal and Installation"

.

NO

>> Repair or replace the malfunction items.

P0746 PRESSURE CONTROL SOLENOID A

TM-545

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P0746 PRESSURE CONTROL SOLENOID A

DTC Logic

INFOID:0000000010245619

DTC DETECTION LOGIC

NOTE:
DC stands for "DRIVING CYCLE" and indicates a series of driving cycle of "Ignition switch OFF 

→

 ON 

→

 driv-

ing 

→

 OFF".

DTC CONFIRMATION PROCEDURE

CAUTION:

Be careful of the driving speed.

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

1.

Start the engine.

2.

Drive the vehicle.

3.

Maintain the following conditions for 10 seconds or more.

4.

Stop the vehicle.

5.

Check the first trip DTC.

Is “P0746”detected?

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

P0746

PC SOLENOID A
(Pressure Control Solenoid A 
Performance/Stuck Off)

The detecting condition A or detection condi-
tion B is detected twice or more (1 second or 
more later after detection of the first) in the 
same DC under the following diagnosis condi-
tions:
• Diagnosis conditions
- Engine speed: More than 600 rpm
- Primary pulley speed: More than 450 rpm
- Idle is not being detected.
- Acceleration/deceleration speed: 

−

0.49 m/

s

2

 (

−

0.05 G) or more

- The primary pulley speed experienced 300 

rpm or more and the secondary pulley 
speed experienced 250 rpm or more at least 
once. 

- Secondary pulley speed: More than 150 

rpm

- TCM power supply voltage: More than 11 V
- DTC other than the applicable DTC is not 

detected.

• Detection condition A
- Status with the shifting ratio of the primary 

pulley speed/secondary pulley ratio exceed-
ing 2.825 is 0.2 sec. or more continuously. 

• Detection condition B
- Status with the shifting ratio of the primary 

pulley speed/secondary pulley ratio exceed-
ing 3.625 is 0.1 sec. or more continuously.

• Line pressure solenoid valve
• Control valve assembly

Selector lever

: “D” position

Accelerator pedal position

: 0.5/8 or more

Vehicle speed

: 40 km/h (25 MPH) or more

TM-546

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

P0746 PRESSURE CONTROL SOLENOID A

YES

>> Go to 

TM-546, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010245620

1.

CHECK INTERMITTENT INCIDNT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace transaxle assembly. Refer to 

TM-653, "Removal and Installation"

.

NO

>> Repair or replace the malfunction items.