P0868

P0868 TRANSMISSION FLUID PRESSURE





Description
Secondary pressure solenoid valve regulates the secondary pressure to suit the driving condition in response to a signal sent from the TCM.




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





6. Stop the vehicle.
7. Select "Self Diagnostic Results" in "TRANSMISSION".
Is "P0868" detected?
YES - Go to P0868.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK LINE PRESSURE
Perform line pressure test. Initial Inspection and Diagnostic Overview.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace damaged parts. Initial Inspection and Diagnostic Overview.
2.CHECK LINE PRESSURE SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check line pressure solenoid valve. P0868.
Is the inspection result normal?
YES - GO TO 3.
NO - Line pressure solenoid valve is malfunctioning. Replace transaxle assembly. Exploded View.
3.CHECK SECONDARY PRESSURE SOLENOID VALVE
Check secondary pressure solenoid valve. P0868.
Is the inspection result normal?
YES - GO TO 4.
NO - Secondary pressure solenoid valve is malfunctioning. Replace transaxle assembly. Exploded View.
4.CHECK SECONDARY PRESSURE SENSOR SYSTEM
Check secondary pressure sensor system. P0840.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace damaged parts.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
Is the inspection result normal?
YES - Replace transaxle assembly. Exploded View.
NO - Repair or replace damaged parts.




Component Inspection (Line Pressure Solenoid Valve)
1.CHECK LINE PRESSURE SOLENOID VALVE
Check resistance between CVT unit harness connector terminal and ground.





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




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.