P1790

DTC P1790 ST SOLENOID VALVE MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

Solenoid assy (ST) is switched ON-OFF by a signal from ECM so that let in or out timing of O/D and 2nd brake is adjusted by operating orifice control valve. Therefore, solenoid assy (ST) operates when letting in or out reverse clutch.

If it is broken, the shift shock becomes big.

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE