P0746

P0746 PRESSURE CONTROL SOLENOID A

Description

- The line pressure solenoid valve is included in the control valve assembly.
- The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the TCM.


CONSULT Reference Value in Data Monitor Mode

Remarks: Specification data are reference values.







On Board Diagnosis Logic

- This is an OBD-II self-diagnostic item.
- Diagnostic trouble code "P0746" with CONSULT is detected under the following conditions.
- Unexpected gear ratio was detected in the LOW side due to excessively low line pressure.


Possible Cause

- Line pressure control system
- Secondary speed sensor
- Primary speed sensor


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, touch "ERASE" on "SELF-DIAG RESULTS" and then perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT

1.Turn ignition switch ON and select "DATA MONITOR" mode for "TRANSMISSION" with CONSULT.
2.Start engine and maintain the following conditions for at least 10 consecutive seconds. Test start from 0
km/h (0 MPH).





3.If DTC is detected, go to .

WITH GST

Follow the procedure "WITH CONSULT".


Diagnosis Procedure


1. CHECK LINE PRESSURE

Perform line pressure test. Trouble Diagnosis.
OK or NG
OK- GO TO 2.
NG- Repair or replace damaged parts. Trouble Diagnosis.

2. DETECT MALFUNCTIONING ITEM

Check line pressure solenoid valve. CVT.
OK or NG
OK- GO TO 3.
NG- Repair or replace damaged parts.

3. CHECK SECONDARY SPEED SENSOR SYSTEM AND PRIMARY SPEED SENSOR SYSTEM

Check secondary speed sensor system and primary speed sensor system.
OK or NG
OK- GO TO 4.
NG- Repair or replace damaged parts.

4. DETECT MALFUNCTIONING ITEM

Check the following:
- Power supply and ground circuit for TCM. P1701.
- The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK- GO TO 5.
NG- Repair or replace damaged parts.

5. CHECK DTC

Perform DTC Confirmation Procedure, (see above).
OK or NG
OK-INSPECTION END
NG- Replace the transaxle assembly or TCM. Transaxle Assembly.