Nissan Qashqai (2007-2010). Manual - part 578

P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE 

SOLENOID VALVE)

TM-247

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Check pressure control solenoid valve A (line pressure solenoid valve). Refer to 

TM-245, "Component Inspec-

tion"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM

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

TM-234, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) SYSTEM

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

TM-231, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK TCM

Check TCM input/output signals. Refer to 

TM-285, "Reference Value"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace the TCM. Refer to 

TM-325, "Exploded View"

.

TM-248

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE 

SOLENOID VALVE)

P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)

Description

INFOID:0000000000988687

The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pressure
to suit the driving condition in response to a signal sent from the TCM.

DTC Logic

INFOID:0000000000988688

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 and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR”.

3.

Start engine and maintain the following conditions for at least 30 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.

Is “P0776 PRS CNT SOL/B FCTN” detected?

YES

>> Go to 

TM-248, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000988689

1.

CHECK LINE PRESSURE

Perform line pressure test. Refer to 

TM-318, "Inspection and Judgment"

.

Is the inspection result normal?

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P0776

PRS CNT SOL/B FCTN

Secondary pressure is too high 
or too low compared with the 
commanded value while driv-
ing.

• Harness or connectors

(Solenoid circuit is open or 
shorted.)

• Pressure control solenoid 

valve B (Secondary pressure 
solenoid valve system)

• Transmission fluid pressure 

sensor A (Secondary pres-
sure sensor)

• Line pressure control system

ATF TEMP SEN

: 1.0 

−

 2.0 V

ACC PEDAL OPEN

: More than 1.0/8

RANGE

: “D” position

VEHICLE SPEED

: 10 km/h (6 MPH) More than

Driving location

: Driving the vehicle uphill (in-
creased engine load) will help 
maintain the driving conditions 
required for this test.

P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRESSURE 

SOLENOID VALVE)

TM-249

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts. Refer to 

TM-318, "Inspection and Judgment"

.

2.

CHECK PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)

Check pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to 

TM-251, "Component

Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)

Check pressure control solenoid valve A (Line pressure solenoid valve). Refer to 

TM-245, "Component

Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYS-

TEM

Check transmission fluid pressure sensor A (secondary pressure sensor) system. Refer to 

TM-255, "DTC

Logic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK TCM

Check TCM input/output signals. Refer to 

TM-285, "Reference Value"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace the TCM. Refer to 

TM-325, "Exploded View"

.

TM-250

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRESSURE 

SOLENOID VALVE)

P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)

Description

INFOID:0000000000988690

The pressure control solenoid valve B (secondary 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:0000000000988691

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

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

1.

CHECK DTC DETECTION

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Start engine.

3.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

4.

Perform “SELF-DIAG RESULTS”. Refer to 

TM-216, "CONSULT-III Function (TRANSMISSION)"

.

With GST

Follow the procedure “With CONSULT-III”.
Is “P0778 PRS CNT SOL/B CIRC” detected?

YES

>> Go to 

TM-250, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000988692

1.

CHECK PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)

CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check resistance between TCM connector terminal and ground.

Is the inspection result normal?

YES 

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)

Check pressure control solenoid valve B (secondary pressure solenoid valve). Refer to 

TM-251, "Component

Inspection"

.

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P0778

PRS CNT SOL/B CIRC

• Normal voltage not applied to 

solenoid due to cut line, 
short, or the like.

• TCM detects as irregular by 

comparing target value with 
monitor value.

• Harness or connectors

(Sensor circuit is open or 
shorted.)

• Pressure control solenoid 

valve B (Secondary pressure 
solenoid valve)

TCM connector

Ground

Resistance (Approx.)

Connector

Terminal

F25

 39

3.0 – 9.0 

Ω