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 TCM.

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 REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.






TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.






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 Generic Scan Tool
(1) Turn ignition switch "ON".
(2) Depress accelerator pedal completely and wait at least 1 second.
(3) Select "MODE 7" with GST.








DIAGNOSTIC PROCEDURE



COMPONENT INSPECTION
Line pressure solenoid valve









Resistance check
Check resistance between terminal (4) and ground.






Operation check
Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal (4) and ground.






Dropping resistor
Check resistance between two terminals.

Resistance: 11.2 - 12.8 ohms