P0746

P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE SOLENOID VALVE)





Description
The pressure control solenoid valve A (line 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

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.

NOTE:
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1. CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select "Data Monitor" in "TRANSMISSION".
3. Start engine and maintain the following conditions for at least 10 consecutive seconds. Test start from 0 km/h (0 MPH).

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) or more
Driving location : Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.


With GST
Follow the procedure "With CONSULT-III".
Is "P0746 PRS CNT SOL/A FCTN" detected?
YES - Go to "Diagnosis Procedure".
NO - Check intermittent incident. Refer to Intermittent Incident.




Diagnosis Procedure
1. CHECK LINE PRESSURE
Perform line pressure test. Refer to Component Tests and General Diagnostics.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace damaged parts. Refer to Component Tests and General Diagnostics.
2.CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit connector.
3. Check pressure control solenoid valve A (line pressure solenoid valve). Refer to "Component Inspection [Pressure Control Solenoid Valve A (Line Pressure Solenoid Valve)]".
Is the inspection result normal?
YES - GO TO 3.
NO - Replace transaxle assembly. Refer to Exploded View.
3.CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system. Refer to P0720
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 P0715.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - Replace TCM. Refer to Exploded View.
NO - Repair or replace damaged parts.




Component Inspection [Pressure Control Solenoid Valve A (Line Pressure Solenoid Valve)]
1. CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)





Check resistance between CVT unit connector terminal and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace transaxle assembly. Refer to Exploded View.