P0745

Description





The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the PCM.
The line pressure duty cycle value is not consistent when the closed throttle position switch is "ON". To confirm the line pressure duty cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is "OFF".





CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE





ON-BOARD DIAGNOSIS LOGIC

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II








1) Turn ignition switch "ON" and select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.
2) Depress accelerator pedal completely and wait at least 1 second.

With GST
Follow the procedure "With CONSULT-II".





Wiring Diagram

Steps 1 - 2:

Steps 3 - 4:

Diagnostic Procedure

Component Inspection
LINE PRESSURE SOLENOID VALVE





Resistance Check





- Check resistance between two terminals.

Operation Check





- Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground.

DROPPING RESISTOR





- Check resistance between two terminals.
Resistance: 10 - 15 Ohms