Nissan Rogue Service Manual: P0776 pressure control solenoid B

Nissan Rogue Service Manual / Transmission & driveline / Transaxle & Transmission / Dtc/circuit diagnosis / P0776 pressure control solenoid B

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms (Trouble diagnosis content

DTC detection condition

P0776

PC SOLENOID B (Pressure Control Solenoid “B” Performance/ Stuck Off)

When any of 1 or 2 is satisfied and this state is maintained for 10 seconds:

When all of the following conditions are satisfied:

DTC other than the applicable DTC is not detected.
Engine speed: More than 625 rpm
Selector lever: Other than P/N position
CVT fluid temperature: More than -20°C (-4°F)
TCM power supply: More than 11 V
The difference between instruction pressure of secondary pressure and 10-msec-ago instruction secondary pressure is 0 MPa or more
Instruction pressure of secondary pressure: 0 MPa or more
Instruction pressure of secondary pressure - secondary pressure: More than 1.2 MPa
When all of the following conditions are satisfied and this state is maintained for 5.5 seconds:

DTC other than the applicable DTC is not detected.
CVT fluid temperature: More than -20°C (-4°F)
Selector lever: Other than P/N position
Secondary pressure - instruction pressure of secondary pressure: 1.2 MPa or more

When all of the following conditions are satisfied:

DTC other than the applicable DTC is not detected.
CVT fluid temperature: More than -20°C (-4°F)
Selector lever: Other than P/N position
TCM power supply: More than 11 V
When all of the following conditions are satisfied and this state is maintained for 5.5 seconds:

DTC other than the applicable DTC is not detected.
CVT fluid temperature: More than -20°C (-4°F)
Selector lever: Other than P/N position
Secondary pressure - instruction pressure of secondary pressure: 1.2 MPa or more

The difference between instruction pressure of secondary pressure and 10-msec-ago instruction secondary pressure is 0 MPa or more
Secondary pressure - instruction pressure of secondary pressure: More than 1.2 MPa

POSSIBLE CAUSE

Secondary pressure solenoid valve

FAIL-SAFE

When a malfunction occurs on the low oil pressure side

Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed
Vehicle speed is not increased

When a malfunction occurs on the high oil pressure side

Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed

DTC CONFIRMATION PROCEDURE

CAUTION: Always drive vehicle at a safe 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

Start the engine.
Drive the vehicle.
Maintain the following condition for 20 seconds or more.

Selector lever : “D” position
Vehicle speed : 40 km/h (25 MPH) or more
Accelerator pedal position : 1.0/8 or more

Stop the vehicle.
Check the first trip DTC.

Is “P0776” detected? YES >> Go to TM-140, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.REPLACE TRANSAXLE ASSEMBLY

Replace transaxle assembly. Refer to TM-220, "Removal and Installation".

>> WORK END

P0746 pressure control solenoid A

DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0746 PC SOLENOID A (Pressure Control Solenoid A Perfo ...

P0778 pressure control solenoid B

DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0778 PC SOLENOID B (Pressure Control Solenoid “B” ...

Other materials:

Normal operating condition
Description FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED) If the engine speed is above 1,800 rpm under no load (for example, the selector lever position is neutral and engine speed is over 1,800 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies b ...

System
System Diagram Compressor Pressure relief valve Liquid tank Refrigerant pressure sensor Condenser Expansion valve Evaporator Blower motor High-pressure gas High-pressure liquid Low-pressure liquid Low-pressure gas Suction port Discharge port ...

Symptom diagnosis
CVT CONTROL SYSTEM Symptom Table The diagnosis item number indicates the order of check. Start checking in the order from 1. Perform diagnoses of symptom table 1 before symptom table 2. Symptom Table 1 Symptom Table 2 ...