P0776

P0776 PRESSURE CONTROL SOLENOID B

Description

- This is detected when secondary pressure solenoid valve is electrically normal and secondary pressure is low.
- This DTC is not caused by an electrical malfunction (circuit open or short) but is caused by a mechanical malfunction (control valve clogging, solenoid valve sticking, and others).


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


CAUTION:
Always drive vehicle at a safe speed.

1. PRECONDITIONING

Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Start the engine.
2.Select "Data Monitor" in "TRANSMISSION".
3.Select "RANGE", "VIGN SEN", "ATF TEMP SEN", "ACC PEDAL OPEN" and "VEHICLE SPEED".
4.Drive the vehicle.
5.Maintain the following conditions for 30 seconds or more.

RANGE :D
VIGN SEN :More than 10 V
ATF TEMP SEN :2.03 - 0.16 V
ACC PEDAL OPEN :More than 1.0/8
VEHICLE SPEED :More than 10 km/h (7 MPH)

6.Stop the vehicle.
7.Select "Self Diagnostic Results" in "TRANSMISSION".
With GST
Follow the procedure "With CONSULT".
Is "P0776" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK LINE PRESSURE

Perform line pressure test. Testing and Inspection.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace damaged parts. Testing and Inspection.

2. CHECK SECONDARY PRESSURE SOLENOID VALVE

1.Turn ignition switch OFF.
2.Disconnect CVT unit harness connector.
3.Check secondary pressure solenoid valve. .
Is the inspection result normal?
YES- GO TO 3.
NO- Secondary pressure solenoid valve is malfunctioning. Replace transaxle assembly. Exploded View

3. CHECK SECONDARY PRESSURE SENSOR SYSTEM

Check secondary pressure sensor system. P0840.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace damaged parts.

4. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
Is the inspection result normal?
YES- Replace transaxle assembly. Exploded View.
NO- Repair or replace damaged parts.


Component Inspection (Secondary Pressure Solenoid Valve)


1. CHECK SECONDARY PRESSURE SOLENOID VALVE

Check resistance between CVT unit harness connector terminal and ground.





Is the inspection result normal?
YES- INSPECTION END
NO- Secondary pressure solenoid valve is malfunctioning. Replace transaxle assembly. Exploded View.